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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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2 conditions added

The vehicle (where a record says)

A record is under an engine, a drive or a series only where it says so: the characters of the vehicle identification number filed with a complaint, its text, or what its document says it applies to. A record that does not say is kept as "not stated". The filed numbers and the documents do not tell 4WD from AWD.

Common on this vehicle:Corrosion or rustReduced brakingParking brakeWarning lightLeakABS activates (at low speed and the like)NoiseLoss of engine power, no acceleration

Record by record

42 records state a cause or a remedy. Each record is shown as short labels in the order fault → finding the cause → correction. Press a label to narrow to the records that state it.

Symptom

Component named as the cause

Work done

How it is said to have ended

  • says it was fixed1
  • says it did not fix it2
  • result not stated9

A ribbon is as wide as the records that state both of its ends (only the commonest are drawn). A record that names several symptoms or components runs through each. Orange is records that say the fault came back or was not fixed. Results come from owners’ reports only; one that does not say is “result not stated”. None of this is a likelihood of a cause or a rate at which work succeeds.

Read the records one by one (36)

Known issuesBrake pipe (brake line) corrosion and rupture30

  1. Owner complaint2002 GMC YUKON ・ 2014-11-17

    Brake failure due to corroded and fractured brake lines at 65,000 miles

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT THE BRAKES FAILED TO ENGAGE WHEN THE BRAKE PEDAL WAS DEPRESSED.
    Cause
    UPDATED 01/15/15*LJ THE BRAKE LINES ROTTED OUT AND CAUSED FLUID TO LEAK, WHICH IN TURN CAUSED THE BRAKES TO FAIL.
    Inspection
    THE DEALER DIAGNOSED THAT THE BRAKE LINES WERE CORRODED AND FRACTURED DUE TO DEFECTIVE METAL.
    Outcome
    THE VEHICLE WAS REPAIRED.

  2. Owner complaint2001 GMC YUKON ・ 2014-03-19

    Brake pedal goes to floor and brake light illuminates when pulling into driveway

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    PULLING INTO THE DRIVEWAY UNDER NORMAL, DRY CONDITIONS, THE BRAKE PEDAL WENT DOWN TO THE FLOOR, AND THE BRAKE LIGHT ON THE DASH ILLUMINATED.
    Cause
    THIS WAS A RESULT OF THE DRIVER'S REAR BRAKE LINE SPRINGING A LEAK WITH NO WARNING WHATSOEVER. (1 more)
    Consequence
    WE CAME A FEW FEET FROM CRASHING THROUGH THE GARAGE DOOR.

  3. Owner complaint2004 GMC YUKON ・ 2018-05-29

    Brake pedal depression to floor and brake line failures due to rust at 260K miles

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    WHILE TRAVELING AT HIGHWAY SPEED AND ROUNDING A BLIND CURVE THE TRAFFIC AHEAD HAD STOPPED DUE TO A CRASH. (1 more)
    Inspection
    IT WAS RAINING AND AS I LOOKED UNDER MY TRUCK TO LOOK FOR WHY MY BRAKES WERE INEFFECTIVE BUT COULDN'T SEE ANYTHING AT THAT TIME. (1 more)
    Consequence
    I WASN'T STOPPING NEAR FAST ENOUGH AND HAD TO VEER TO THE LEFT INTO THE MEDIAN TO AVOID MAKING CONTACT WITH ANYONE ELSE.

  4. Owner complaint2003 GMC YUKON ・ 2016-10-17

    Brake pedal to floor and brake fluid leak, brake lines fractured

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    WITHOUT WARNING, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD AND BRAKE FLUID WAS LEAKING.
    Remedy
    THE MECHANIC REPLACED THE FRONT BRAKE LINES AND INDICATED THAT THERE WAS EXTENSIVE RUST AND CORROSION.

  5. Owner complaint2002 GMC YUKON ・ 2016-06-09

    Brake pedal travel to floor while towing at 50 mph

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 50 MPH (= 80.5 km/h) AND TOWING A BOAT, THE BRAKE PEDAL WAS DEPRESSED AND TRAVELED TO THE FLOORBOARD.
    Remedy
    THE BRAKE LINES WERE REPLACED AND THE FAILURE WAS REMEDIED.
    Inspection
    THE VEHICLE WAS TAKEN TO THE DEALER WHO DIAGNOSED THAT THE FAILURE WAS CAUSED BY RUSTED BRAKE LINES.

  6. Owner complaint2003 GMC YUKON ・ 2014-08-01

    Brake pedal travels to floorboard, brake line corrosion

    1. 1Fault

    2. 2Finding the cause

    3. 3CorrectionNot repaired

      THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED.

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT THE BRAKE PEDAL WAS DEPRESSED AND TRAVELED TO THE FLOORBOARD. (1 more)
    Remedy
    THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED.

  7. Owner complaint2002 GMC YUKON ・ 2014-07-09

    Brake failure with complete rust after reverse light bulb maintenance

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    WHILE MAKING THIS MAINTENANCE REPAIR THE BRAKES ON MY TRUCK FAILED COMPLETELY. (1 more)
    Inspection
    AFTER HAVING IT TOWED TO A REPAIR SHOP I WAS TOLD MY BRAKES HAD COMPLETELY RUSTED OUT. *TR
    Consequence
    FORTUNATELY I WAS ABLE TO KEEP THE TRUCK FROM BACKING INTO THE CARS PARKED ACROSS THE STREET BEHIND ME..AND THAT I HAD NOT GONE RIGHT OUT TO DRIVE MY SON TO BASEBALL.

  8. Owner complaint2000 GMC YUKON ・ 2014-03-03

    Brake fluid leak and soft brake pedal

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      I PUT IN A HALF A BOTTLE OF BRAKE FLUID INTO THE RESERVOIR.

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    I WAS DRIVING AROUND TOWN WHEN THE BRAKES FELT A LITTLE SOFT. (3 more)
    Remedy
    I PUT IN A HALF A BOTTLE OF BRAKE FLUID INTO THE RESERVOIR.
    Inspection
    TOOK VEHICLE TO SHOP AND WAS TOLD THAT THE BRAKE LINES ALL NEEDED TO BE REPLACED. *TR

  9. Owner complaint2003 GMC YUKON ・ 2013-11-23

    Brake pedal goes to floor during ABS braking on slippery road

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    COMING TO A STOP TO MAKE A LEFT HAND TURN, LIGHT COATING OF SNOW ON THE ROAD MADE IT SLIPPERY, ABS BRAKING CYCLED I HELD BRAKE PEDAL DOWN AS THE MANUALS SAY TO DO WITH ABS SYSTEM, TRUCK SLOWED ABS CYCLED AGAIN AND THEN PEDAL WENT TO THE FLOOR.
    Inspection
    I HAD ALMOST NO BRAKES AT ALL AS I ENTERED MY DRIVEWAY AND PARKED.I THEN INSPECTED FLUID LEVEL IN MASTER CYLINDER WHICH APPEARED FULL , FROM THERE I FOLLOWED LINE DOWN TO THE ABS MODULE TO THE BRAIDED BRAKE LINE AND STILL SAW NO LEAKS, THEN FOLLOWED THE BRAIDED BRAKE LINE TO THE BRAKE LINE TUBING TO THE FRAME BEHIND THE WHEEL WELL WHERE THE LINE CLOSEST TO THE WHEEL WELL WAS LEAKING FLUID AND IT HAD SPRAYED ALL OVER THE LINE AND UNDER CARRIAGE AND FRAME AND WHEEL HOUSING SHROUD.
    Consequence
    MY VEHICLE ENDED UP SIDEWAYS IN ROAD AND THIRTY FEET FROM MY TURN AND NEARLY IN A DITCH, I THEN BACKED UP TO MAKE MY TURN AND BRAKES WENT TO THE FLOOR AGAIN AS I STOPPED TO ENTER MY ROAD , FORTUNATELY MY HOME WAS ONLY ABOUT 500 YARDS (= 457.2 m) FROM THIS SPOT.

  10. Owner complaint2002 GMC YUKON ・ 2013-08-15

    Multiple brake line failures due to corrosion

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Remedy
    REAR BRAKE LINES RUNNING ALONG THE AXLE WERE ORIGINALLY REPLACED UPON VISUAL INSPECTION.

  11. Owner complaint2003 GMC YUKON ・ 2013-06-10

    Brake pedal sinking; brake line failure reported

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    WAS DRIVING DOWN MY STREET @ 20MPH (= 32.2 km/h), STARTED TO BRAKE ABOUT 150 FEET (= 45.7 m) BEFORE THE STOP SIGN. (1 more)
    Remedy
    THE TECH RE-CONSTRUCTED THE BRAKE LINES FROM SCRATCH USING A CORROSION-RESISTANT ALLOY TUBING. (2 more)
    Inspection
    THE TECHNICIAN INSPECTED, HE FOUND 2 FAILED LEAKING STEEL BRAKE LINES...THE REST OF THE BRAKE LINES WERE SEVERELY RUSTED.

  12. Owner complaint2000 GMC YUKON ・ 2013-05-10

    Brake failure and stuck pedal while driving 30-40 MPH

    1. 1Fault

    2. 2Finding the cause

    3. 3CorrectionNot repaired

      THE VEHICLE WAS NOT REPAIRED.

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 30-40 MPH (= 48.3–64.4 km/h), THE BRAKES FAILED TO ENGAGE WHEN DEPRESSED. (1 more)
    Remedy
    THE VEHICLE WAS NOT REPAIRED.
    Inspection
    THE CONTACT INSPECTED THE VEHICLE AND DISCOVERED THAT THE BRAKE LINE WAS CORRODED, CAUSING BRAKE FLUID TO LEAK FROM THE VEHICLE.

  13. Owner complaint2002 GMC YUKON ・ 2012-10-09

    Complete brake failure caused by rusted brake lines

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    WHEN APPLYING BRAKE TO SHIFT INTO DRIVE THE PEDAL WENT TO THE FLOOR.
    Inspection
    WAS TAKEN TO A NEAR BY GARAGE AND SHOWN 4 SEPARATE LEAKS IN THE LINES.
    Consequence
    IM LUCKY NO-ONE WAS INJURED OR KILLED. (1 more)

  14. Owner complaint2002 GMC YUKON ・ 2012-08-22

    Brake pedal goes to floor and vehicle fails to stop

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT WHILE ENGAGING THE BRAKES, THE PEDAL WENT ALL THE WAY TO THE FLOORBOARD AND THE VEHICLE FAILED TO STOP. (1 more)
    Inspection
    THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE BRAKE LINES WERE COMPLETELY CORRODED.
    Outcome
    THE VEHICLE WAS REPAIRED.

  15. Owner complaint2003 GMC YUKON DENALI ・ 2012-03-28

    Brake failure while driving; brake pedal depressed to floorboard at 78,000 miles

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT WHILE DRIVING 20 MPH (= 32.2 km/h), THE BRAKES WERE APPLIED AND FAILED AND THE BRAKE PEDAL WAS DEPRESSED INTO THE FLOORBOARD.
    Remedy
    THE MECHANIC REPAIRED THE ENTIRE BRAKE LINE AND MASTER CYLINDER.
    Inspection
    THE MECHANIC DISCOVERED THAT THE BRAKE LINE WAS RUSTED AND LEAKING BRAKE FLUID.

  16. Owner complaint2002 GMC YUKON ・ 2011-12-06

    Brake pedal not stopping as usual; fluid leak on driver's side

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    I STARTED VEHICLE, DEPRESSED THE BRAKE PEDAL, I THEN PLACED THE SHIFTER INTO REVERSE AND PROCEEDED TO DRIVE WHEN I REALIZED THE VEHICLE WASN'T STOPPING AS USUAL. (1 more)
    Cause
    THE MAIN (CORRODED) BRAKE LINE BURST CAUSING FLUID TO LEAK EVERYWHERE AND CREATING A POTENTIALLY SERIOUS LIFE THREATENING DRIVING HAZARD ( BRAKE FAILURE) HAD I NOT PARKED THE VEHICLE IT WOULD HAVE BEEN A DIFFERENT ENDING....THIS NEEDS TO INVESTIGATED IMMEDIATELY. *TR

  17. Owner complaint2002 GMC YUKON ・ 2010-10-10

    Brake failure and corroded brake lines while towing trailer

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    BRAKES WENT TO FLOOR WHILE HAD TO USE EMERGENCY BRAKE.
    Cause
    I THINK THEY ARE THE METAL BRAKE LINES AND THEIR FAILURE SEEMS LIKE A DEFECT IN MATERIAL AS I THINK THEY SHOULD BE MADE OF A HARDER OR MORE LASTING STAINLESS STEEL OR SOMETHING AS BRAKES ARE THE MOST IMPORTANT DEVICE ON A VEHICLE.

  18. Owner complaint2003 GMC YUKON ・ 2016-07-08

    Brake pedal goes to floor; brake system failure while towing

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    I WAS TOWING A 17' BOAT AND CAME TO A STOP SIGN. (3 more)

  19. Owner complaint2003 GMC YUKON DENALI ・ 2016-06-19

    Brake failure while driving on city street

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    BRAKES FAILED WHILE DRIVING ON CITY STREET WITH NO WARNING COULD NOT STOP AT RED LIGHT.

  20. Owner complaint2001 GMC YUKON ・ 2016-03-16

    Brake lines corroded, rear line failed

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    BRAKE LINES EXTREMELY CORRODED AND LINE TO REAR BRAKES COMPLETELY FAILED LEAKING FLUID. (2 more)

  21. Owner complaint2004 GMC YUKON ・ 2015-07-06

    Brake pedal sinks to floor, no braking capability, brake warning light appears

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    WHILE DRIVING DOWN AN ON RAMP I BEGAN TO APPLY THE BRAKES TO SLOW DOWN, THE BRAKE PEDAL SUNK TO THE FLOOR AND I HAD NO BRAKING CAPABILITY AND THE BRAKE WARNING APPEARED ON THE DASH.
    Inspection
    UPON INSPECTION OF THE BRAKE LINES, THERE WAS A MAJOR LEAK ON THE REAR DRIVER SIDE, AND A SMALLER LEAK FROM ON THE FRONT PASSENGER SIDE.

  22. Owner complaint2002 GMC YUKON ・ 2014-04-16

    Brake fluid loss: brake pedal goes to floor on Sunday night drive

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    I NOTICED SOME FLUID UNDER THE MIDDLE OF VEHICLE AND THOUGHT IT WAS WATER BUT AS I WAS HEADING TO CHURCH SUNDAY NIGHT MY BRAKE PEDDLE WENT ALL THE WAY TO THE FLOOR, WAS VERY DISTURBING AND SCARY TO ME BUT WAS ABLE TO STOP AND GET HOME SAFELY.
    Inspection
    ALSO, INFORMED THAT I NEEDED A NEW WATER PUMP TOO.

  23. Owner complaint2002 GMC YUKON ・ 2013-10-23

    Brake fluid leaking, brakes went out

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    BRAKE FLUID LEAKING - BRAKES WENT OUT.

  24. Owner complaint2004 GMC YUKON ・ 2013-08-13

    Brake line leak due to rust under driver side seat

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.

  25. Owner complaint2003 GMC YUKON ・ 2013-08-04

    Sudden loss of brakes while driving downhill

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    WHILE DRIVING DOWN A HILL IN ORILLIA ONTARIO CANADA, I HAD A SUDDEN LOSS OF BRAKES.
    Inspection
    MY BROTHER CHECKED THE VEHICLE AND FOUND THAT ALL BRAKE FLUID HAD LEAKED OUT OF A RUPTURED CORRODED BRAKE LINE NEXT TO THE ABS SENSOR UNDER THE DRIVER SIDE OF THE VEHICLE.

  26. Owner complaint2000 GMC YUKON ・ 2013-04-21

    Brake pedal went to the floor while backing up to hitch trailer

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    I WAS JUST BACKING UP TO HITCH A TRAILER WHEN THE BRAKE PEDAL WENT TO THE FLOOR, THANKFULY IT HAPPENED BEFORE I HOOKED THE TRAILER AS I WOULD CERTAINLY HAVE HAD AN ACCIDENT TOWING A TRAILER WITH NO BRAKES!

  27. Owner complaint2004 GMC YUKON DENALI ・ 2012-12-20

    Brake pedal traveled to floor while braking at 25 mph

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT WHILE DRIVING 25 MPH (= 40.2 km/h) AND ATTEMPTING TO BRAKE, THE BRAKE PEDAL ABNORMALLY TRAVELED TO THE FLOORBOARD WITHOUT WARNING.
    Inspection
    THE TECHNICIAN DIAGNOSED THAT THE BRAKE LINES WERE SEVERELY CORRODED AND LEAKING.

  28. Owner complaint2002 GMC YUKON ・ 2012-10-23

    Brake lines severely rusted; brake pedal to floor while driving

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    BRAKE LINES SEVERELY RUSTED. (2 more)

  29. Owner complaint2001 GMC YUKON ・ 2012-09-21

    Brake line leaking, pedal goes to floor

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    BRAKE LINE JUST STARTED LEAKING WHILE IN THE DRIVE WAY. (1 more)

  30. Owner complaint2004 GMC YUKON ・ 2012-08-04

    Brake fluid leak from brake lines

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    BACKING UP APPLIED BRAKES, PEDAL WENT TO FLOOR, STOPPED LOOKED UNDER VEHICLE SEEN BRAKE FLUID LEAKING FROM BRAKE LINES.

Known issuesUnwanted ABS activation at low speed (front wheel speed sensor mounting corrosion)1

  1. Owner complaint2002 GMC YUKON ・ 2005-10-20

    ABS sensors replacement needed

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Remedy
    THE CONSUMER HAD TO HAVE ABS SENSORS REPLACED. (1 more)
    Inspection
    MECHANIC TESTED THE SENSORS AND STATED THIS WOULD NOT STOP VEHICLE.*AK THE FRONT HUB AND BEARING WERE CORRODED ALONG WITH THE SENSORS.

EQUIPMENT2

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2017-08-15

    Service Engine Soon Lamp and P0442 Diagnostic Information

    1. 1Fault

      • The service engine soon lamp (MIL) is on with DTC P0442, but no leak can be verified with the system test in the service information.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. Connect the scan tool and command the EVAP system closed.
      2. Start the engine and watch the fuel tank pressure sensor value for about two minutes.
      3. If the tank pressure sensor value changes (shows vacuum), remove the purge solenoid and pressurize its fuel tank side with the GE 41413-A / J 41413-A tester.
      4. If the sensor value does not change, install the CH-48096 adaptor between the purge line from the canister and the purge solenoid; use no other adaptor or pressurization method.
      5. With the EVAP system closed, pressurize through the CH 48096 adaptor and watch the pressure/vacuum gauge for at least 5 minutes until the system is fully stable, then add smoke.
      2 more points

    3. 3Correction

      Repair

      • Add smoke and let the pressure stabilize; if smoke passes through the purge solenoid, replace the purge solenoid.

      Caution

      • After verifying P0442, do not disturb any fuel system component before testing.
      • EVAP test pressure must not exceed 13 in H2O (0.5 PSI (= 3.45 kPa)); more can make components perform inaccurately and lead to misdiagnosis.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2015 and prior passenger cars and trucks.
    • Condition：The service engine soon lamp (MIL) is on with DTC P0442, but no leak can be verified with the system test in the service information.
    • Caution：After verifying P0442, do not disturb any fuel system component before testing.
    • Confirm：Connect the scan tool and command the EVAP system closed.
    • Confirm：Start the engine and watch the fuel tank pressure sensor value for about two minutes.
    • Confirm：If the tank pressure sensor value changes (shows vacuum), remove the purge solenoid and pressurize its fuel tank side with the GE 41413-A / J 41413-A tester.
    • Repair：Add smoke and let the pressure stabilize; if smoke passes through the purge solenoid, replace the purge solenoid.
    • Confirm：If the sensor value does not change, install the CH-48096 adaptor between the purge line from the canister and the purge solenoid; use no other adaptor or pressurization method.
    • Confirm：With the EVAP system closed, pressurize through the CH 48096 adaptor and watch the pressure/vacuum gauge for at least 5 minutes until the system is fully stable, then add smoke.
    • Confirm：Check the canister vent solenoid filter or fresh-air line for smoke; an intermittent vent solenoid fault may show up when the vent solenoid is cycled and the test repeated.
    • Confirm：If smoke finds nothing, the leak may exist only under vacuum: use the scan tool Purge/Seal function to pull a vacuum on the EVAP system and watch the FTP sensor parameter for vacuum decay.
    • Caution：EVAP test pressure must not exceed 13 in H2O (0.5 PSI (= 3.45 kPa)); more can make components perform inaccurately and lead to misdiagnosis.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442 has been verified do not disturb any of the fuel system components. The technician now can use the scan tool to close the Evaporative Emissions System. If possible change the tank pressure sensor units from inch_H2O to milimeter_Hg for better resolution. Now the vehicle can be stared to monitor the tank pressure sensor output value for approximately two minutes. If the tank pressure sensor value does change, pressurize the fuel tank side of the purge solenoid with the GE 41413-A / J 41413-A and the necessary adaptors. Now add smoke and allow pressure to stabilize for 2 minutes. If smoke is allowed to pass through the purge solenoid, replace the purge solenoid. If the tank pressure sensor value does not change, then install CH-48096 adaptor between the purge line from the canister and the purge solenoid. With the Evaporative Emissions System closed, pressurize the system through the CH-48096 adaptor and allow the system to completely stabilize, by observing the Press / Vac Gauge for a minimum of 5 minutes. Now add smoke to the system with GE 41413-A / J 41413-A after system stabilization. Now inspect the purge solenoid, engine side, fuel cap, canister vent solenoid filter and any line quick connects. When the leak is unable to be located, test under a vacuum condition. his type of leak may be detected by using the scan tool Purge/Seal function to create a vacuum in the Evaporative Emissions System and then observe the FTP sensor parameter for vacuum decay.

  2. Owner complaint2003 GMC YUKON ・ 2006-08-17

    Spongy brakes with long pedal travel and extended stopping distance

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    WHEN USED BRAKES WERE VERY SPONGY, LONG PEDAL TRAVEL BEFORE REACTION THEN EXTENDED STOPPING DISTANCE.
    Cause
    I BELIEVE THEY HAVE A PROBLEM WITH THE SYSTEM LIKE THEY HAD ON PREVIOUS S10 MODELS IN LATE 90'S WITH THE SLOW SPEED BRAKING RECALL. (1 more)

BRAKES1

  1. Recall2000 GMC YUKON ・ 2000-11-17

    Brake pipe wear contact recall

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Cause
    On certain vehicles, the body cross sill may contact the front, right-hand brake pipe. This could eventually wear a hole in the brake pipe over the normal life of the vehicle and result in a brake fluid leak. This could ultimately result in a partial brake system failure and increased stopping distances. Correction: Dealers will inspect for brake pipe wear and replace worn section if necessary. A spacer clip will be installed to ensure adequate clearance.

SERVICE BRAKES1

  1. Owner complaint2004 GMC YUKON DENALI ・ 2014-07-17

    Brake failure at 45 MPH with brake failure light

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    DRIVING 45 MPH (= 72.4 km/h) HIT BRAKES AND COULD NOT STOP. (1 more)

SERVICE BRAKES, HYDRAULIC1

  1. Owner complaint2003 GMC YUKON ・ 2006-08-22

    Spongy brake pedal and extended stopping distance after brake service

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    WHEN BRAKES WERE APPLIED THE PEDAL WENT TO THE FLOOR AND LONGER THAN NORMAL DISTANCE WAS REQUIRED TO STOP. (1 more)
    Inspection
    FLUID LEVEL CHECKED FOUND TO BE WITHIN NORMAL RANGE, NORMAL COLOR AND NO APPARENT LEAKS.
    Consequence
    NO CRASH.

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