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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:Does not start

causeIntake GasketRemove

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.

Symptom

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 issuesIntake manifold gasket leak (cold idle misfire, lean codes)1

  1. Owner complaint2002 GMC YUKON XL ・ 2006-03-02

    2002 Yukon XL running poorly in cold weather; hard start and no start; intake gaskets and fuel pump issues

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Intake manifold gasket leak (cold idle misfire, lean codes)

      Confirm

      • The seals may leak around the bottom side of the port, which makes the vacuum leak hard to detect.

      Repair

      1. Only the current teal green gaskets should be used; the old gaskets were orange.
      2. The intake bolts must be replaced and not reused.

      Caution

      • Do not measure the intake manifold across all four intake runner ports.
    Read the sentences of the record
    Fault
    ORIGINAL PROBLEM: MY 2002 YUKON XL WAS RUNNING POORLY WHEN THE WEATHER TURNED COLD - BELOW 30 DEGREES. (1 more)
    Cause
    BOTH PROBLEMS ARE BECAUSE THEY WERE DESIGNED FOR USE WITH ETHANOL OR UNLEADED GAS.
    Inspection
    PROBLEM DIAGNOSED AS FAULTY INTAKE GASKETS DUE TO IMPROPER DESIGN. (1 more)