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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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1 conditions added

The vehicle (where a record says)

A record is under an engine, a drive or a series only where it says so: the characters of the vehicle identification number filed with a complaint, its text, or what its document says it applies to. A record that does not say is kept as "not stated". The filed numbers and the documents do not tell 4WD from AWD.

Common on this vehicle:Warning lightMisfire or rough idleHard start or long crankDoes not startNoiseLeakLoss of engine power, no accelerationStalls or shuts off

Possible causes

P030035 records
Engine
10Intake manifold gasket leak (cold idle misfire, lean codes)5Single-cylinder misfire (P0300-P0308) and/or chirp, squeak or tick at camshaft speed: worn cam lobe / lifter, valve or valve spring1P0300 after engine repairs: injector connectors crossed (cylinders 5-7 / 6-8)1Engine Valve: clogged or contaminated

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・P0300

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

  1. The seals may leak around the bottom side of the port, which makes the vacuum leak hard to detect.
  2. Lower-than-normal MAF readings may be seen if the intake seals are leaking.
  3. An intake manifold with warpage in excess of 3mm (.118 in.) over a 200mm (7.87-in.) area must be replaced.
  4. Measure the intake manifold for warpage across two runner ports only.
  5. Only the current teal green gaskets should be used; the old gaskets were orange.
  6. The intake bolts must be replaced and not reused.
Read the remaining 3 steps

Caution: Do not measure the intake manifold across all four intake runner ports.

What is needed

Parts and materials
  • Intake manifold gasket GM SPO p/n 89017589 (teal green; the only one to use for repairs on the L59 engine)
  • Intake manifold gaskets (the current teal green ones)
  • Intake bolts (not to be reused)
  • Intake manifold (when warped in excess of 3mm (.118 in.) over a 200mm (7.87-in.) area)

Part numbers printed in the document

The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

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 (3 technical documents, 10 records)

Passages of the technical documents

  • MOTOR reports the GM bulletin lists 1999-2005 GMC Savana, Sierra and Yukon models among affected vehicles.

    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

  • The bulletin describes a cold engine idle misfire with DTCs P0171, P0174 or P0300.

    It describes a cold engine idle misfire, with DTCs P0171 P0174 or P0300.

    MOTOR Magazine 2017-02-06

  • The bulletin states the intake gasket seals may leak around the intake ports, causing the lean condition.

    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 it warms.

    Leaks typically occur when the engine is cold, and may subside as the engine warms.

    MOTOR Magazine 2017-02-06

Read every statement and its source →

Records

None among the records that can be opened now.

See all 10 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.