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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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3 conditions added

Common on this vehicle:Lights (headlights, turn signals)Gauge or instrument faultLeakSmoke or fireWarning lightAir conditioning or heaterMisfire or rough idleNoise

Possible causes

Noise, Instruments and lighting, 20031 records
Engine
Body, doors and interior
Brakes
Transmission and driveline
Electrical, wiring and power
Exhaust and emissions
1Single-cylinder misfire (P0300-P0308) and/or chirp, squeak or tick at camshaft speed: worn cam lobe / lifter, valve or valve spring0Engine knock on cold start (carbon on piston)4.8L, 5.3L, 6.0L only0Engine vibration or noise at idle felt in the steering wheel or seat (reprogram the PCM)0Oil pump pickup (screen) O-ring cut: engine tick / lifter noise4.8L, 5.3L, 6.0L only0Snap or popping noise from the front of the vehicle (slot the front crossmember mounting holes)0Buzz at the accelerator pedal on the first acceleration after start (Supplemental Brake Assist self-test, normal)04L60-E / 4L65-E clunk on 2-3 upshift or 3-2 downshift (normal condition)04L80-E / 4L85-E planetary gear whine in first and second gear0Grind / ratchet noise when shifting into Park in 4LO (characteristic)0Hum or fan noise from the navigation radio (internal cooling fan, normal)0Exhaust pop or ping noise (replace the heat shield, not the exhaust system)
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 2000–2006・Noise, Instruments and lighting, 2003

Candidate cause (the documents say what to do)

Single-cylinder misfire (P0300-P0308) and/or chirp, squeak or tick at camshaft speed: worn cam lobe / lifter, valve or valve spring

Customers may complain of an SES light, engine misfire and/or engine noise.

A verified noise is not eliminated by canceling fuel injectors and occurs at camshaft speed (half of crankshaft speed).

How to tell

P0300P0301P0302P0303P0304Check engine / Service Engine Soon

What to do

  1. If pressing on the valve side of the rocker changes the noise, a lifter and/or cam lobe concern on that cylinder is most likely.
  2. The misfiring/ticking cylinder should have less cam lobe lift than comparison cylinders if a worn lifter roller and/or cam lobe is the cause.
  3. During the noise, press with a wooden hammer handle on the rocker arms at the valve side, push rod side, and side of the rocker to find which one is making noise.
  4. Measure the cam lobe lift at the push rod side of the rocker arm.
  5. A good indicator of a sticking valve is engine misfires that continue to count on an aggressive deceleration with engine braking.
  6. Release the air pressure from the cylinder and work the valve up and down in the guide while turning it 360 degrees; if any binding is felt, a stem to guide clearance concern exists.
Read the remaining 9 steps

Caution: A damaged cam lobe is easy to overlook when inspecting through the lifter bores; unworn lifter rollers do not mean the cam lobes are okay.

What is needed

Parts and materials
  • Camshaft and all lifters (if a worn camshaft lobe or lifter roller is found)
  • Plastic lifter guide (for the lifter that had the damaged cam lobe or lifter roller)
  • Valve spring (if found broken)
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 (2 technical documents, 1 records)

Passages of the technical documents

  • The model list includes GMC Yukon Models 2002 - 2018 with V8 engines.

    GMC Yukon Models 2002 - 2018 All All V8 ALL

    General Motors (published by NHTSA) 2018-10-16

  • Customers may complain of an SES light, engine misfire and/or engine noise.

    Some customers may complain of a SES light, engine misfire, and/or engine noise.

    General Motors (published by NHTSA) 2018-10-16

  • A verified noise is not eliminated by canceling fuel injectors and occurs at camshaft speed (half of crankshaft speed).

    If a noise is verified, it will not be eliminated by canceling fuel injectors and the noise will occur at camshaft speed (half of crankshaft speed).

    General Motors (published by NHTSA) 2023-04-24

  • The noise may be described as a chirp, squeak, squeal or tick and may increase off idle.

    The noise may be described as a chirp, squeak, squeal or tick noise and may increase off of idle.

    General Motors (published by NHTSA) 2023-04-24

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Manufacturer’s documents

Records

None among the records that can be opened now.

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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.