GMC Yukon XL 2000–2006
Common on this vehicle:NoiseWarning lightLoss of engine power, no accelerationVibration or shudderLeakShifting faultGauge or instrument faultParking brake
Possible causes
8 causes not drawn
- Parking brake linings worn out prematurely, parking brake does not hold (PBR single-shoe drum-in-hat)1500 only0
- Generator whine in the audio system (new ground for radio and amplifier)0
- Hum or fan noise from the navigation radio (internal cooling fan, normal)0
- Exhaust pop or ping noise (replace the heat shield, not the exhaust system)0
- Fuel pressure regulator buzz / hum after replacement (check fuel pump feed voltage drop and connector crimps)4.8L, 5.3L, 6.0L only0
- 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
Causes with no correction stated (2)
Causes the records name for which no check or repair is stated, in a technical document or in a record. Press one for the records that name it.
- Transmission and driveline
- Locking Rear Differential (1)Transfer Case: failed (1)
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, Transmission and driveline
Candidate cause (the documents say what to do)
Engine knock on cold start (carbon on piston)
Applies to: 4.8L, 5.3L, 6.0L only
The noise is usually more noticeable on initial start-up below 10°C (50°F) and may be more pronounced on the first cold start after a long trip.
The noise may be caused by an interaction between carbon formed on the piston, the piston motion and the cylinder wall.
What to do
No technical document states a check or a repair.
Caution: GM Powertrain Engineering confirmed the noise is not detrimental to the performance, reliability or durability of the engine.
What is needed
- Parts and materials
- Not stated
- Labor time
- Not stated
- Special tools
- Not stated
- Scan tool
- Not stated
Only what the technical documents state. "Not stated" does not mean not needed.
In the records
No record states work done for this cause.
See the evidence (1 technical documents, 0 records)
Passages of the technical documents
The bulletin covers 1999-2006 Chevrolet and GMC C/K pickup and utility models.
1999-2006 Chevrolet and GMC C/K Pickup and Utility Models
General Motors (filed with NHTSA) 2016-04-01
It applies to the 4.8L, 5.3L, 6.0L or 6.2L gas engine.
Equipped with 4.8L, 5.3L, 6.0L or 6.2L Gas Engine
General Motors (filed with NHTSA) 2016-04-01
The noise is usually more noticeable on initial start-up below 10°C (50°F) and may be more pronounced on the first cold start after a long trip.
The noise is usually more noticeable on the initial start-up when the temperature is below 10°C (50°F) and may be more pronounced on the first cold start following a long trip.
General Motors (filed with NHTSA) 2016-04-01
The noise may be caused by an interaction between carbon formed on the piston, the piston motion and the cylinder wall.
This noise may be caused by an interaction between carbon that has formed on the piston, the piston motion and the cylinder wall.
General Motors (filed with NHTSA) 2016-04-01
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.

