GMC Yukon 2000–2006
Common on this vehicle:Gauge or instrument faultNoiseWarning lightCorrosion or rustLeakReduced brakingAir conditioning or heaterVibration or shudder
Possible causes
24 causes not drawn
- Crankshaft position sensor may work intermittently or fail (8.1L V8) - recall 07V-5210
- Throttle body carbon build-up: idle surge, reduced engine power, throttle DTCs (high mileage)0
- Front right-hand brake pipe contact with body cross sill - recall 00V-3450
- Stability System Disabled message and unwanted StabiliTrak activation (tire wear or mismatched tires)0
- ABS lamp with DTC C0265 (EBCM motor relay circuit) after EBCM replacement0
- Intermittent MIL, service lamps/messages or DTCs from connector fretting corrosion1
- Reduced Engine Power from throttle body connector crimp, broken wire or grounds1
- Battery1
- Rear Window Defroster Contact1
- Rear door window inoperative (motor replacement)1
- Power Window1
- Sunroof1
- Service 4WD indicator and DTC B2725 (transfer case shift control switch)1
- 4WD/AWD lamps and system inoperative: "sleepy" New Venture Gear transfer case control module (reprogram the TCCM)1
- Transfer case service light, New Venture Gear transfer case (replace the encoder motor sensor and reprogram the TCCM)0
- Transfer Case Speed Sensor Wiring Harness1
- No response when the OnStar button is pressed (DTC B2476): button assembly test values1
- Red OnStar LED and DTC B2455 after Canada upgrade bulletin 15-08-44-001 (audio and microphone drain wires shorted)1
- Telematics Control Module1
- Rear HVAC ticking noise, no rear temperature or mode control, DTC B0434 / B3764 (revised auxiliary HVAC control module)1
- Seat Heater1
- 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
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
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.