GMC Yukon XL 2000–2006
Record by record
1 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.
Component named as the cause
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 (1)
Known issuesHydro-boost brake assist and power steering share one hydraulic supply (four campaigns)1
Owner complaint2004 GMC YUKON DENALI XL ・ 2012-04-30
Fluid leaking from hydraulic brake booster and release valve, noise on startup
1Fault
2Finding the cause
3CorrectionNot repaired
What the documents say to do
Hydro-boost brake assist and power steering share one hydraulic supply (four campaigns)Confirm
- Perform the "Power Steering System Test" found in SI and make any necessary repairs based on system diagnosis.
Repair
- Dealers replace the hydro-boost relief valve.
- Dealers test the hydro-boost assembly for functional operation and replace it if it fails.
Caution
- An inoperative pump raises steering and braking effort but does not completely remove the ability to steer or slow the vehicle.
Read the sentences of the record
- Fault
- THE CONTACT STATED THAT FLUID WAS LEAKING FROM THE HYDRAULIC BRAKE BOOSTER AND THE RELEASE VALVE. (1 more)
- Remedy
- THE VEHICLE WAS NOT REPAIRED.
- Inspection
- THE CONTACT TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC, WHO INSPECTED THE BRAKES AND INFORMED THE CONTACT THAT THE HYDRAULIC BRAKE BOOSTER AND THE RELEASE VALVE NEEDED TO BE REPLACED.

