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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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2 conditions added

Common on this vehicle:Loss of engine power, no accelerationWarning light

Possible causes

Does not start, P21080 records
Electrical, wiring and power
Engine
Fuel system
0Intermittent stall, misfire or crank no start (Ignition 1 feed wire broken near C148/C149)0No crank with a blown Ign A fuse (circuit 142 pinched at the steering column support bracket)0Passlock theft deterrent: starts then stalls / no-start with security lamp0Crankshaft position sensor may work intermittently or fail (8.1L V8) - recall 07V-5218.1L only0DTCs P2108, P1516 and U0107 (do not replace the TAC module)0Out of fuel with the gauge reading above empty, cranks but no start, stall (replace the fuel sensor, not the sender module)
Causes with no correction stated (1)

Causes the records name for which no check or repair is stated, in a technical document or in a record. Press one for the records that name it.

Electrical, wiring and power
Intermittent no start with Service Stability, ABS light, 'Unknown Driver' and multiple DTCs / no module communication (0)

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・Does not start, P2108

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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Records

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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.