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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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2 conditions added

Common on this vehicle:Warning light

Possible causes

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.

Candidate cause (the documents say what to do)

Intermittent stall, misfire or crank no start (Ignition 1 feed wire broken near C148/C149)

The engine may intermittently stall, misfire, or crank without starting, and there may be no trouble codes set.

The pink Ignition 1 power feed wire may break inside the insulation near connector C148/C149.

What to do

  1. Complete the SI diagnostics first; if they are inconclusive and the concern can be duplicated, inspect for a loss of Ignition 1 voltage to the ignition coils.
  2. Wiggle test the ignition coil harnesses to see if the concern can be duplicated.
  3. Inspect splices S160 and S159 for loose connections, and connectors C148 and C149 for wires breaking near the connector.

What is needed

Parts and materials
Not stated
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 (1 technical documents, 0 records)

Passages of the technical documents

  • The information applies to 2005-06 Chevrolet Express, Silverado, Suburban, Tahoe, GMC Savana, Sierra and Yukon equipped with a 4.8, 5.3 or 6.0 engine.

    This information applies to the 2005-06 Chevrolet Express, Silverado, Suburban, Tahoe, GMC Savana, Sierra, Yukon equipped with a 4.8, 5.3 or 6.0 engine.

    General Motors 2006-10-01

  • The engine may intermittently stall, misfire, or crank without starting, and there may be no trouble codes set.

    The engine may intermittently stall, misfire, or crank without starting. There may be no trouble codes set.

    General Motors 2006-10-01

  • The pink Ignition 1 power feed wire may break inside the insulation near connector C148/C149.

    The pink Ignition 1 power feed wire may break inside the insulation near connector C148/C149.

    General Motors 2006-10-01

  • Complete the SI diagnostics first; if they are inconclusive and the concern can be duplicated, inspect for a loss of Ignition 1 voltage to the ignition coils.

    Complete the SI diagnostics for any symptoms or trouble codes found. If diagnostics are inconclusive, and an intermittent stall, misfire, or a crank no start can be duplicated, inspect for a loss of Ignition 1 voltage to the ignition coils.

    General Motors 2006-10-01

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