GMC Yukon XL 2000–2006
Common on this vehicle:Corrosion or rustWarning lightLeakParking brakeNoise
Possible causes
10 causes not drawn
- Fuel pressure regulator buzz / hum after replacement (check fuel pump feed voltage drop and connector crimps)0
- Engine compartment noise with A/C on and A/C inoperative (auxiliary rear A/C: suction hose and compressor)0
- HVAC actuator clicking / ticking noises (recalibrate the HVAC control module, do not replace actuators)0
- Rear HVAC ticking noise, no rear temperature or mode control, DTC B0434 / B3764 (revised auxiliary HVAC control module)0
- Tire recall (not the vehicle as built): Firestone Wilderness LE tread separation - recall 01T-0010
- Power steering pump whine between idle and 2000 rpm0
- Steering intermediate shaft clunk0
- Tire scrub noise on low speed turns (steering rod / centerlink installed backwards)0
- Aftermarket part (not the vehicle as built): Federal-Mogul National / Carquest replacement wheel hub assembly retention nut - recall 07E-1060
- Creak or squeak noise from the rear lower control arm bushings (do not replace the propshaft)0
The documents say what to doOnly records name itThe size of a node, the width of a link and the numbers are records matching this search, not likelihoods.
FaultCrate・GMC Yukon XL 2000–2006・Noise, Brake warning / Service Brake System
Candidate cause (the documents say what to do)
Brake pipe (brake line) corrosion and rupture
The pipes' steel-copper construction is vulnerable to galvanic corrosion if exposed to the environment.
NHTSA found the failures came with general excessive corrosion over most of the pipe assembly and appear to be expected wear-out of the coating in severe-corrosion states.
How to tell
Brake warning / Service Brake System
What to do
- 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).
- GM noted that pipes with excessive flaking corrosion can only be fully evaluated, including remaining service life, by removing them, cleaning off the corrosion and sectioning them to assess remaining wall thickness.
- The inspections found no specific location where corrosion was visually more severe and no pattern between vehicles.
- Service records of incident vehicles also indicate that repairs are not isolated to a specific location or brake pipe.
- GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
- 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.
In the records
No record states work done for this cause.
See the evidence (1 technical documents, 1 records)
Passages of the technical documents
Products: 1999-2003 GM C/K pickup trucks and SUVs in Salt Belt states
NHTSA ODI 2015-04-08
The GMT800 platform includes the following vehicles: 1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.
NHTSA ODI 2015-04-08
Brake line corrosion may result in rupture during brake application, resulting in reduced brake effectiveness.
NHTSA ODI 2015-04-08
The steel-copper construction is vulnerable to galvanic corrosion if exposed to the environment.
NHTSA ODI 2015-04-09
Records
- Service brake system alert and brake pedal failure on highway at 60 mph Owner complaint 2014-09-25
A cause or a result a complaint states is the owner’s view or what a dealer told them, not an established fact.
Put together by FaultCrate from public records and technical documents. The cause and the repair are for the workshop to decide with the vehicle in front of it. Counts are records, not failure rates.