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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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1 conditions added

Common on this vehicle:Air conditioning or heaterLoss of engine power, no accelerationWarning light

Possible causes

「LQ4」, Warning light1 records
Engine
Brakes
Transmission and driveline
Electrical, wiring and power
Exhaust and emissions
Fuel system
1Rear bank knock sensor corrosion from water intrusion (P0332)0Crankshaft position sensor may work intermittently or fail (8.1L V8) - recall 07V-5210Intake manifold gasket leak (cold idle misfire, lean codes)0Single-cylinder misfire (P0300-P0308) and/or chirp, squeak or tick at camshaft speed: worn cam lobe / lifter, valve or valve spring0P0300 after engine repairs: injector connectors crossed (cylinders 5-7 / 6-8)0Brake pipe (brake line) corrosion and rupture0ABS light with C0265/C0201/U1041 or no communication with brake module (EBCM ground G110)0Front right-hand brake pipe contact with body cross sill - recall 00V-3450Service Brake Booster message on a Hydroboost vehicle with DTC C0136 (instrument cluster not SPS programmed)0Stability System Disabled / Service Stability message with DTC C0455 (bent terminals at the steering wheel position sensor)0Transfer case service light, New Venture Gear transfer case (replace the encoder motor sensor and reprogram the TCCM)0Intermittent battery lamp with history DTC B1489 after BGCM replacement (module not SPS programmed)0Intermittent MIL, service lamps/messages or DTCs from connector fretting corrosion0Reduced Engine Power from throttle body connector crimp, broken wire or grounds0P0420 / P0430 on a new or just-replaced catalytic converter (break-in not completed)0Fuel module reservoir assembly: fuel pump wire connectors may overheat - recall 05V-1550DTC P0446 set with the SES lamp on (replace the EVAP vent solenoid, not the canister)
6 causes not drawn

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・「LQ4」, Warning light

Candidate cause (the documents say what to do)

Rear bank knock sensor corrosion from water intrusion (P0332)

Customers may report mild to severe engine ping (spark knock), usually worse during acceleration, and/or an illuminated MIL.

The technician may find DTC P0332 set.

How to tell

P0327P0332Check engine / Service Engine Soon

What to do

  1. If P0327 and P0332 set at the same time, inspect for poor connections at the two-wire knock sensor harness located at the left rear side of the intake manifold near the top, just under the cover.
  2. Check the resistance of the knock sensors including the harness before reinstalling the intake manifold.
  3. Replace the rear bank knock sensor and build an RTV dam around the sensor to divert water away from it.

Caution: Do not form the RTV into a complete circle; leave the rear section open.

In the records

No record states work done for this cause.

See the evidence (2 technical documents, 1 records)

Passages of the technical documents

  • 1999-2002 Chevrolet and GMC C/K Pickup and Utility Models (Avalanche, Silverado, Sierra, Tahoe, Suburban, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL) with 4.8L, 5.3L or 6.0L Engine

    General Motors (copy hosted by Corvette Action Center)

  • Some customers may comment on a mild to severe engine ping (commonly referred to as spark knock), usually worse during acceleration and/or an illuminated MIL.

    General Motors (copy hosted by Corvette Action Center)

  • Upon investigation, the technician may find DTC P0332 set.

    General Motors (copy hosted by Corvette Action Center)

  • This condition may be the result of corrosion of the rear bank knock sensor due to water intrusion into the sensor cavity.

    General Motors (copy hosted by Corvette Action Center)

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Records

None among the records that can be opened now.

See all 1 records of this cause →

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.