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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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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:Warning lightAir conditioning or heaterNoiseLoss of engine power, no acceleration

Record by record

19 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.

Read the records one by one (15)

Known issues4L80-E / 4L85-E planetary gear whine in first and second gear2

  1. Manufacturer communication2002 GMC CHEVROLET AND GMC C/K MODELS AND 2002 CADILLAC ESCALADE WITH 4.3L, 4.8L 5.3L OR 6.0L GAS ENGINE (YUKON XL) ・ 2002-01-01

    1-2, 2-3, or 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission (bulletin 01-07-30-031)

    1. 1Fault

      • 1-2, 2-3, or 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Bulletins – December 2001 01-07-30-031; 1-2, 2-3, or 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission; 2002-2002 Chevrolet and GMC C/K Models and 2002 Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine (VINs W, V, T, U -- RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E Transmission 1-2, 2-3, or 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission

      What the documents say to do

      4L80-E / 4L85-E planetary gear whine in first and second gear

      Confirm

      • Compare the vehicle with an identically built vehicle (same GVWR) before attempting any repairs.

      Repair

      1. If end play is out of specification, inspect and replace the output planetary gear set as necessary.
      2. If end play is within specification, replace the transmission assembly.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 01-07-30-031 lists "2002-2002 Chevrolet and GMC C/K Models and 2002 Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine" (VINs W, V, T, U; RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E transmission.
    • Condition：1-2, 2-3, or 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – December 2001 01-07-30-031; 1-2, 2-3, or 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission; 2002-2002 Chevrolet and GMC C/K Models and 2002 Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine (VINs W, V, T, U -- RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E Transmission 1-2, 2-3, or 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission

  2. Manufacturer communication2000 GMC CHEVROLET AND GMC C/K MODELS AND CADILLAC ESCALADE WITH 4.3L, 4.8L 5.3L OR 6.0L GAS ENGINE (YUKON XL) ・ 2002-01-01

    2-3, 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission (bulletin 01-07-30-013A)

    1. 1Fault

      • 2-3, 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Bulletins – December 2001 01-07-30-013A; replaces 01-07-30-013; 2- 3, 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission; 1999-2000 Chevrolet and GMC C/K Models and Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine (VINs W, V, T, U -- RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E Transmission 2- 3, 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission

      What the documents say to do

      4L80-E / 4L85-E planetary gear whine in first and second gear

      Confirm

      • Compare the vehicle with an identically built vehicle (same GVWR) before attempting any repairs.

      Repair

      1. If end play is out of specification, inspect and replace the output planetary gear set as necessary.
      2. If end play is within specification, replace the transmission assembly.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 01-07-30-013A replaces 01-07-30-013 and lists "1999-2000 Chevrolet and GMC C/K Models and Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine" (VINs W, V, T, U; RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E transmission.
    • Condition：2-3, 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – December 2001 01-07-30-013A; replaces 01-07-30-013; 2- 3, 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission; 1999-2000 Chevrolet and GMC C/K Models and Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine (VINs W, V, T, U -- RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E Transmission 2- 3, 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission

Known issuesA/C blows warm at extended idle (6.0L: auxiliary electric cooling fan)1

  1. Manufacturer communication2000–2002 GMC C/K UTILITY MODELS (YUKON XL) ・ 2001-12-01

    A/C not cold enough or blows warm at extended idle (6.0L): auxiliary electric cooling fan (bulletin 01-01-39-004)

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • The condition is A/C not cold enough, or A/C blowing warm air with the vehicle at extended idle; the correction is to install an auxiliary electric cooling fan.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 01-01-39-004 applies to 2000-02 Chevrolet and GMC C/K Utility Models and the 2002 Cadillac Escalade with the 6.0L engine (VINs U, N; RPOs LQ4, LQ9).
    • Repair：The condition is A/C not cold enough, or A/C blowing warm air with the vehicle at extended idle; the correction is to install an auxiliary electric cooling fan.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – November 2001 01-01-39-004; A/C Not Cold Enough, A/C Blows Warm Air with Vehicle at Extended Idle (Install Auxiliary Electric Cooling Fan); 2000-02 Chevrolet and GMC C/K Utility Models, 2002 Cadillac Escalade, with 6.0L Engine (VINs U, N – RPOs LQ4, LQ9) A/C Not Cold Enough, A/C Blows Warm Air with Vehicle at Extended Idle (Install Auxiliary Electric Cooling Fan)

Known issuesFuel pressure regulator buzz / hum after replacement (check fuel pump feed voltage drop and connector crimps)1

  1. Manufacturer communication2001–2002 GMC THE 4.8L RPO LR4 (VIN V), 5.3L RPO LM7 (VIN T), AND 6.0L RPO LQ4 (VIN U) (YUKON XL) ・ 2002-01-01

    Changes to the Gen III engines' fuel injection system for 2002, and the parts specific to the E85-capable L59

    1. 1Fault

      • The 5.3L L59 has an E85 compatible fuel system, which can handle fuel that is up to 85% ethanol. Its fuel system components are specially designed to survive in this environment. Because of this, fuel rail service is different from the other Gen III engines.
      • For 2002, there will be early and late model intake air fuel modules (IAFM), consisting of the throttle body, fuel rail and injectors, and intake manifold. The early IAFMs will be the same as 2001.
      • The PCV valve will be changed from a variable valve to a fixed orifice.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      • The fuel pressure is different for this application (the E85 fuel rail): 334 to 375 kPa (48 to 54 psi).

    3. 3Correction

      Repair

      • The late production IAFMs on engines that do not require EGR will have a cast-over EGR port. All service replacement manifolds for 2002 will have an open EGR port. If the manifold you are replacing does not have EGR, you must install the supplied plug and screw, following the instructions in the parts package.

      Parts

      • The L59 uses Denso injectors, which are not interchangeable with the Multec 2 injectors used in the other Gen III applications.
      • Because of this, the right fuel rail, left fuel rail and fuel crossover pipe are available only as a complete assembly.
      • The fuel pressure regulator is also specific to the E85 fuel rail. It is larger in diameter than those used in the other Gen III engine applications and uses a special diaphragm that is compatible with E85 fuels.

      Caution

      • If you replace the O-rings, be sure they are specific to this injector. The Denso injector is longer than the Multec 2.
      • The L59 fuel rail is made of a special material that is resistant to degradation from E85 fuel. Special thread-cutting screws hold the fuel crossover in place. Do not remove these screws. Re-installing them will cut new threads, destroying the former threads and creating a possibility of failure.
      • Three different fuel pressure regulators are used this year. Each one is held in place on the fuel rail by a unique retainer, and the retainer diameter and window dimensions are different for each. Use the correct retainer to ensure adequate retention of the fuel pressure regulator.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：In 2001 the Gen III engine family was the 4.8L RPO LR4 (VIN V), the 5.3L RPO LM7 (VIN T) and the 6.0L RPO LQ4 (VIN U); for 2002 the 6.0L RPO LQ9 (VIN N) and the 5.3L L59 (VIN Z) are being added.
    • Condition：The 5.3L L59 has an E85 compatible fuel system, which can handle fuel that is up to 85% ethanol. Its fuel system components are specially designed to survive in this environment. Because of this, fuel rail service is different from the other Gen III engines.
    • Parts：The L59 uses Denso injectors, which are not interchangeable with the Multec 2 injectors used in the other Gen III applications.
    • Caution：If you replace the O-rings, be sure they are specific to this injector. The Denso injector is longer than the Multec 2.
    • Caution：The L59 fuel rail is made of a special material that is resistant to degradation from E85 fuel. Special thread-cutting screws hold the fuel crossover in place. Do not remove these screws. Re-installing them will cut new threads, destroying the former threads and creating a possibility of failure.
    • Parts：Because of this, the right fuel rail, left fuel rail and fuel crossover pipe are available only as a complete assembly.
    • Parts：The fuel pressure regulator is also specific to the E85 fuel rail. It is larger in diameter than those used in the other Gen III engine applications and uses a special diaphragm that is compatible with E85 fuels.
    • Confirm：The fuel pressure is different for this application (the E85 fuel rail): 334 to 375 kPa (48 to 54 psi).
    • Caution：Three different fuel pressure regulators are used this year. Each one is held in place on the fuel rail by a unique retainer, and the retainer diameter and window dimensions are different for each. Use the correct retainer to ensure adequate retention of the fuel pressure regulator.
    • Condition：For 2002, there will be early and late model intake air fuel modules (IAFM), consisting of the throttle body, fuel rail and injectors, and intake manifold. The early IAFMs will be the same as 2001.
    • Condition：The PCV valve will be changed from a variable valve to a fixed orifice.
    • Repair：The late production IAFMs on engines that do not require EGR will have a cast-over EGR port. All service replacement manifolds for 2002 will have an open EGR port. If the manifold you are replacing does not have EGR, you must install the supplied plug and screw, following the instructions in the parts package.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Changes to the Gen III Engine Family Fuel Injection System In 2001 the Gen III engine family was comprised of the 4.8L RPO LR4 (VIN V), 5.3L RPO LM7 (VIN T), and 6.0L RPO LQ4 (VIN U). For 2002, the 6.0L RPO LQ9 (VIN N) and the 5.3L L59 (VIN Z) are being added to the list. The 5.3L L59 is equipped with an E85 compatible fuel system, which can handle fuel that is up to 85% ethanol. Fuel system components are specially designed to survive in this environment. Because of this, fuel rail service is different from the other Gen III engines. The L59 uses Denso injectors that are not interchangeable with the Multec 2 injectors used in the other Gen III applications. If you replace the O-rings, be sure they are specific to this injector. Also notice that the Denso injector is longer than the Multec 2. The L59 fuel rail is made of a special material that is resistant to degradation from E85 fuel. Special thread-cutting screws hold the fuel crossover in place. Do not remove these screws. Re-installing them will cut new threads, destroying the former threads and creating a possibility of failure. Because of this, the right fuel rail, left fuel rail and fuel crossover pipe are available only as a complete assembly. The fuel pressure regulator is also specific to the E85 fuel rail. It is larger in diameter than those used in the other Gen III engine applications and uses a special diaphragm that is compatible with E85 fuels. The fuel pressure regulator is also specific to the E85 fuel rail. It is larger in diameter than those used in the other Gen III engine applications and uses a special diaphragm that is compatible with E85 fuels. The fuel pressure is different for this application -- 334 to 375 kPa (48 to 54 psi). Three different fuel pressure regulators are used this year. Each one is held in place on the fuel rail by a unique retainer. The retainer diameter and window dimensions are different for each. Use the correct retainer to ensure adequate retention of the fuel pressure regulator. For 2002, there will be early and late model intake air fuel modules (IAFM), consisting of the throttle body, fuel rail and injectors, and intake manifold. The early IAFMs will be the same as 2001. The PCV valve will be changed from a variable valve to a fixed orifice. Also the late production IAFMs on engines that do not require EGR will have a cast-over EGR port. All service replacement manifolds for 2002 will have an open EGR port. If the manifold you are replacing does not have EGR, you must install the supplied plug and screw, following the instructions in the parts package.

Known issuesLean hesitation, sag or stumble at -6 to +20°C coolant temperature (PCM reprogram)1

  1. Manufacturer communication2000 GMC YUKON XL ・ 2001-05-01

    Lean hesitation, sag or stumble at -6 to +20°C coolant temperature (bulletin 00-06-03-009A)

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • The correction is to reprogram the PCM.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 00-06-03-009A, which replaces 00-06-03-009, lean hesitation, sag or stumble when coolant temperature is between -6 and +20°C, lists 2000 Chevrolet and GMC C/K models (Silverado, Sierra, Suburban, Tahoe, Yukon, Yukon XL) with the 4.8L, 5.3L or 6.0L V8 engine and 4L60-E automatic transmission (RPO M30).
    • Repair：The correction is to reprogram the PCM.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    This review of service bulletins released through mid-April 00-06-03-009A; replaces 00-06-03- 009; Lean Hesitation, Sag or Stumble When Coolant Temperature is Between - 6 and +20°C (Reprogram PCM); 2000 Chevrolet and GMC C/K Models (Silverado, Sierra, Suburban, Tahoe, Yukon, Yukon XL) with 4.8L, 5.3L or 6.0L V8 Engine (VINs V, T, U -- RPOs LR4, LM7, LQ4) with 4L60-E Automatic Transmission (RPO M30) Lean Hesitation, Sag or Stumble When Coolant Temperature is Between - 6 and +20°C (Reprogram PCM)

Known issuesHigher than expected engine oil consumption (PCV valve replacement)1

  1. Manufacturer communication2000–2002 GMC FULL-SIZE PICKUPS AND UTILITIES (YUKON XL) ・ 2002-09-01(also printed in 3 other issues)

    Higher than expected engine oil consumption: replace the PCV valve (bulletin 01-06-01-029B)

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • The condition is higher than expected engine oil consumption; the correction is to replace the PCV valve.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 01-06-01-029B replaces 01-06-01-029A and applies to 1999-2002 Full-Size Pickups and Utilities with the 4.8L, 5.3L or 6.0L engine (VINs V, T, N, U; RPOs LR4, LM7, LQ9, LQ4).
    • Repair：The condition is higher than expected engine oil consumption; the correction is to replace the PCV valve.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – August 2002 01-06-01-029B; replaces 01-06-01-029A; Higher than Expected Engine Oil Consumption (Replace PCV Valve) 1999-2002 Full-Size Pickups and Utilities with 4.8L, 5.3L or 6.0L Engine (VINs V, T, N, U – RPOs LR4, LM7, LQ9, LQ4) Higher than Expected Engine Oil Consumption (Replace PCV Valve)

Known issuesRear bank knock sensor corrosion from water intrusion (P0332)1

  1. Manufacturer communication2000–2002 GMC SPECIFIED VEHICLES 1998-2002 WITH 4.8L, 5.3L OR 6.0L ENGINE (YUKON XL) ・ 2002-09-01(also printed in 1 other issues)

    Audible spark knock, MIL illuminated, DTC P0332 set: replace the rear bank knock sensor (bulletin 02-06-04-023A)

    1. 1Fault

      • Audible spark knock (detonation), MIL illuminated, DTC P0332 set.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • Replace the rear bank knock sensor and RTV the area around the sensor.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 02-06-04-023A, which replaces 02-06-04-023, lists "specified vehicles 1998-2002 with 4.8L, 5.3L or 6.0L Engine" (VINs V, T, Z, N, U; RPOs LR4, LM7, L59, LQ9, LQ4).
    • Condition：Audible spark knock (detonation), MIL illuminated, DTC P0332 set.
    • Repair：Replace the rear bank knock sensor and RTV the area around the sensor.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – August 2002 02-06-04-023A; replaces 02-06-04-023; Audible Spark Knock (Detonation), MIL Illuminated, DTC P0332 Set (Replace Rear Bank Knock Sensor and RTV Area Around Sensor); specified vehicles 1998-2002 with 4.8L, 5.3L or 6.0L Engine (VINs V, T, Z, N, U – RPOs LR4, LM7, L59, LQ9, LQ4) Audible Spark Knock (Detonation), MIL Illuminated, DTC P0332 Set Replace Rear Bank Knock Sensor and RTV Area Around Sensor

No component category7

  1. Manufacturer communication2000 GMC LQ4 ENGINES OR LR4 ENGINES (YUKON XL) ・ 2003-12-01

    Replacement flywheel on a GEN III V-8 has larger bolt holes: the new bolts 12563533 and flywheel apply only to 1999 and 2000 LQ4 or LR4 engines

    1. 1Fault

      • When replacing the flywheel on a GEN III V-8, you may notice that the bolt holes for the crankshaft in the replacement flywheel are larger than the holes in the original part.

    2. 2Finding the cause

      Possible causes

      • The original part was superseded. The new flywheel has slightly larger bolt holes.

    3. 3Correction

      Repair

      • Install the flywheel using the appropriate Service Information procedure.

      Parts

      • New bolts with washers have a 22.3 mm conical design and will provide sufficient clamp load to install the new flywheel.
      • The new bolts are part number 12563533.

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The new bolts, part number 12563533, and the flywheel are applicable only on LQ4 engines or LR4 engines for 1999 and 2000.
    • Condition：When replacing the flywheel on a GEN III V-8, you may notice that the bolt holes for the crankshaft in the replacement flywheel are larger than the holes in the original part.
    • Cause：The original part was superseded. The new flywheel has slightly larger bolt holes.
    • Parts：New bolts with washers have a 22.3 mm conical design and will provide sufficient clamp load to install the new flywheel.
    • Parts：The new bolts are part number 12563533.
    • Repair：Install the flywheel using the appropriate Service Information procedure.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Flywheel Bolt Holes The new bolts part number 12563533 and flywheel are applicable only on LQ4 engines or LR4 engines for 1999 and 2000. When replacing the flywheel on a GEN III V-8, you may notice the bolt holes for the crankshaft in the replacement flywheel are larger than the holes in the original part. The original part was superseded. The new flywheel has slightly larger bolt holes. New bolts with washers have a 22.3 mm conical design and will provide sufficient clamp load to install the new flywheel. The new bolts part number 12563533 and flywheel are applicable only on LQ4 engines or LR4 engines for 1999 and 2000. Install the flywheel using the appropriate Service Information procedure.

  2. Manufacturer communication2001–2003 GMC CARS AND LD TRUCKS WITH 4.8L, 5.3L, 5.7L OR 6.0L V8 ENGINE (YUKON XL) ・ 2003-02-01

    Engine knock or lifter noise: replace the O-ring (bulletin 02-06-01-038)

    1. 1Fault

      • Engine knock or lifter noise.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • Replace the O-ring.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 02-06-01-038 lists "2001-03 Cars and LD Trucks with 4.8L, 5.3L, 5.7L or 6.0L V8 Engine" (VINs V, T, Z, G, S, N, U; RPOs LR4, LM7, L59, LS1, LS6, LQ9, LQ4).
    • Condition：Engine knock or lifter noise.
    • Repair：Replace the O-ring.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – January, 2003 02-06-01-038; Engine Knock or Lifter Noise (Replace O-Ring); 2001-03 Cars and LD Trucks with 4.8L, 5.3L, 5.7L or 6.0L V8 Engine (VINs V, T, Z, G, S, N, U -- RPOs LR4, LM7, L59, LS1, LS6, LQ9, LQ4) Engine Knock or Lifter Noise Replace O-Ring

  3. Manufacturer communication2000–2003 GMC SPECIFIED VEHICLES 1998-2003 WITH 4.8L, 5.3L, 5.7L OR 6.0L V8 ENGINE (YUKON XL) ・ 2002-11-01

    Needle bearings found in the oil pan: replace the rocker arms (bulletin 02-06-01-029)

    1. 1Fault

      • Needle bearings found in the oil pan.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • Replace the rocker arms.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 02-06-01-029 lists "Specified vehicles 1998-2003 with 4.8L, 5.3L, 5.7L or 6.0L V8 Engine" (VINs V, T, G, S, U; RPOs LR4, LM7, LS1, LS6, LQ4, LQ9).
    • Condition：Needle bearings found in the oil pan.
    • Repair：Replace the rocker arms.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins - October, 2002 02-06-01-029; Needle Bearings Found in Oil Pan (Replace Rocker Arms); Specified vehicles 1998-2003 with 4.8L, 5.3L, 5.7L or 6.0L V8 Engine (VINs V, T, G, S, U -- RPOs LR4, LM7, LS1, LS6, LQ4, LQ9) Needle Bearings Found in Oil Pan Replace Rocker Arms

  4. Manufacturer communication2001–2002 GMC VEHICLES WITH 4.8L, 5.3L, 5.7L, 6.0L OR 8.1L ENGINE (YUKON XL) ・ 2002-04-01

    Revised DTC P1221 (bulletin 02-06-04-005)

    1. 1Fault

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      • Revised DTC P1221.

    3. 3Correction

      Bulletins – March 2002 02-06-04-005; Revised DTC P1221; specified 2001-02 vehicles with 4.8L, 5.3L, 5.7L, 6.0L or 8.1L Engine (VINs V , T , G, S, U – RPOs LR4, LM7 , LS1, LS6, LQ4, L18) Revised DTC P1221

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 02-06-04-005 lists "specified 2001-02 vehicles with 4.8L, 5.3L, 5.7L, 6.0L or 8.1L Engine" (VINs V, T, G, S, U; RPOs LR4, LM7, LS1, LS6, LQ4, L18).
    • Confirm：Revised DTC P1221.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – March 2002 02-06-04-005; Revised DTC P1221; specified 2001-02 vehicles with 4.8L, 5.3L, 5.7L, 6.0L or 8.1L Engine (VINs V , T , G, S, U – RPOs LR4, LM7 , LS1, LS6, LQ4, L18) Revised DTC P1221

  5. Manufacturer communication2000–2002 GMC CARS AND TRUCKS WITH 4.8L, 5.3L, 5.7L OR 6.0L ENGINE (YUKON XL) ・ 2002-02-01

    Revised cylinder head installation and replacement procedures (bulletin 01-06-01-027)

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • Revised cylinder head installation and replacement procedures.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 01-06-01-027 lists "Specified 1997-2002 Cars and Trucks with 4.8L, 5.3L, 5.7L or 6.0L Engine" (VINs V, T, Z, G, S, U, N; RPOs LR4, LM7, L59, LS1, LS6, LQ4, LQ9).
    • Repair：Revised cylinder head installation and replacement procedures.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – January 2002 01-06-01-027; Revised Cylinder Head Installation and Replacement Procedures; Specified 1997-2002 Cars and Trucks with 4.8L, 5.3L, 5.7L or 6.0L Engine (VINs V, T, Z, G, S, U, N – RPOs LR4, LM7, L59, LS1, LS6, LQ4, LQ9) Revised Cylinder Head Installation and Replacement Procedures

  6. Manufacturer communication2001–2002 GMC C/K PICKUP AND UTILITY MODELS (YUKON XL) ・ 2001-10-01

    Information on engine knock on cold start (6.0L) (bulletin 01-06-01-022)

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Bulletins – September 2001 01-06-01-022; Information on Engine Knock on Cold Start; 2001-2002 Chevrolet and GMC C/K Pickup and Utility Models with 6.0L Engine (VIN U – RPO LQ4)

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 01-06-01-022 gives information on engine knock on cold start for 2001-2002 Chevrolet and GMC C/K Pickup and Utility Models with the 6.0L engine (VIN U, RPO LQ4).

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – September 2001 01-06-01-022; Information on Engine Knock on Cold Start; 2001-2002 Chevrolet and GMC C/K Pickup and Utility Models with 6.0L Engine (VIN U – RPO LQ4)

  7. Manufacturer communication2001 GMC C/K UTILITY MODELS (YUKON XL) ・ 2001-04-01

    Engine oil level indicator and tube change (bulletin 00-06-01-015B)

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      This review of service bulletins released through mid-March 00-06-01-015B; Engine Oil Level Indicator and Tube Change; 2000-01 Chevrolet and GMC C/K Pickup Models (Silverado, Sierra), 2001 Chevrolet and GMC C/K Utility Models with 4.8L, 5.3L or 6.0L V8 Engine (VINs V, T, U -- RPOs LR4, LM7, LQ4)

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 00-06-01-015B, engine oil level indicator and tube change, lists 2000-01 Chevrolet and GMC C/K Pickup Models (Silverado, Sierra) and 2001 Chevrolet and GMC C/K Utility Models with the 4.8L, 5.3L or 6.0L V8 engine (VINs V, T, U; RPOs LR4, LM7, LQ4).

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    This review of service bulletins released through mid-March 00-06-01-015B; Engine Oil Level Indicator and Tube Change; 2000-01 Chevrolet and GMC C/K Pickup Models (Silverado, Sierra), 2001 Chevrolet and GMC C/K Utility Models with 4.8L, 5.3L or 6.0L V8 Engine (VINs V, T, U -- RPOs LR4, LM7, LQ4)

ENGINE AND ENGINE COOLING1

  1. Manufacturer communication2004 GMC YUKON XL ・ 2004-05-06

    EVAP Code P0442 on Various Engines Notification

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      4.3 4.8 5.3 6.0 LR4 LU3 LM7 L59 LQ4 LQ9 ENGINES- EVAP CODE P0442. *MR

    Read the sentences of the record
    Remedy
    4.3 4.8 5.3 6.0 LR4 LU3 LM7 L59 LQ4 LQ9 ENGINES- EVAP CODE P0442. *MR

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