GMC Yukon 2000–2006
Common on this vehicle:Gauge or instrument faultWarning lightNoiseLeakAir conditioning or heaterCorrosion or rustVibration or shudderSmoke or fire
Possible causes
7 causes not drawn
- Reduced Engine Power from throttle body connector crimp, broken wire or grounds1
- Vehicle Communication Interface Module1
- Rear HVAC ticking noise, no rear temperature or mode control, DTC B0434 / B3764 (revised auxiliary HVAC control module)1
- Instrument panel cluster gauges stick, flutter or stop working1
- CHECK OIL LEVEL message stays on after an oil change or top-off until the engine cools0
- Quadrasteer: rear wheels stay turned after the front wheels are straight (controlled re-centering after a fault, normal operation)1
- Red OnStar LED and DTC B2455 after Canada upgrade bulletin 15-08-44-001 (audio and microphone drain wires shorted)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 2000–2006・Warning light, 2004
Candidate cause (the documents say what to do)
Intake manifold gasket leak (cold idle misfire, lean codes)
The bulletin describes a cold engine idle misfire with DTCs P0171, P0174 or P0300.
The bulletin states the intake gasket seals may leak around the intake ports, causing the lean condition.
How to tell
P0171P0174P0300Check engine / Service Engine Soon
What to do
- The seals may leak around the bottom side of the port, which makes the vacuum leak hard to detect.
- Lower-than-normal MAF readings may be seen if the intake seals are leaking.
- An intake manifold with warpage in excess of 3mm (.118 in.) over a 200mm (7.87-in.) area must be replaced.
- Measure the intake manifold for warpage across two runner ports only.
- Only the current teal green gaskets should be used; the old gaskets were orange.
- The intake bolts must be replaced and not reused.
Caution: Do not measure the intake manifold across all four intake runner ports.
In the records
No record states work done for this cause.
See the evidence (1 technical documents, 9 records)
Passages of the technical documents
Affected vehicles include 2002-05 Cadillac Escalades, 1999-2005 Chevrolet Avalanche, Express, Silverado, Suburban, Tahoe and Trailblazer models, 1999-2005 GMC Savana, Sierra and Yukon models, and 2003-05 HUMMER H2s.
MOTOR Magazine 2017-02-06
It describes a cold engine idle misfire, with DTCs P0171 P0174 or P0300.
MOTOR Magazine 2017-02-06
The TSB states that the intake gasket seals may be leaking around the intake ports, causing the lean condition.
MOTOR Magazine 2017-02-06
Leaks typically occur when the engine is cold, and may subside as the engine warms.
MOTOR Magazine 2017-02-06
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.