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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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2 conditions added

Common on this vehicle:LeakStalls or shuts offWarning lightGauge or instrument faultSmoke or fireDoes not startMisfire or rough idleLoss of engine power, no acceleration

Possible causes

Noise, Fuel system1 records
Fuel system
Body, doors and interior
Brakes
Transmission and driveline
Electrical, wiring and power
Engine
1Fuel pressure regulator buzz / hum after replacement (check fuel pump feed voltage drop and connector crimps)4.8L, 5.3L, 6.0L only0Rattle from the center of the dash (cowl insulator clip)0Snap or popping noise from the front of the vehicle (slot the front crossmember mounting holes)0Headliner or roof rattle (roof drain channel)0Side access door noise (door check link replacement)0Parking brake linings worn out prematurely, parking brake does not hold (PBR single-shoe drum-in-hat)1500 only04L60-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)0Whine noise from the rear axle (tuned torsional damper propeller shaft)0Generator whine in the audio system (new ground for radio and amplifier)0Hum or fan noise from the navigation radio (internal cooling fan, normal)0Accessory drive belt whine (power steering pump pulley repositioned)1500 only0Engine knock on cold start (carbon on piston)4.8L, 5.3L, 6.0L only0Single-cylinder misfire (P0300-P0308) and/or chirp, squeak or tick at camshaft speed: worn cam lobe / lifter, valve or valve spring0Oil pump pickup (screen) O-ring cut: engine tick / lifter noise4.8L, 5.3L, 6.0L only0Rear bank knock sensor corrosion from water intrusion (P0332)4.8L, 5.3L, 6.0L only
10 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 XL 2000–2006・Noise, Fuel system

Candidate cause (the documents say what to do)

Fuel pressure regulator buzz / hum after replacement (check fuel pump feed voltage drop and connector crimps)

Applies to: 4.8L, 5.3L, 6.0L only

Some vehicles may have a hum / buzz noise at idle after fuel pressure regulator replacement.

Engineering introduced a redesigned fuel pump connector for service in December 2004 (bulletin 04-06-04-088C).

What to do

  1. If the vacuum line is removed from the regulator, the noise may change or stop completely.
  2. Check the power and ground feeds to the fuel pump for voltage drops, key on engine off, all the way from the battery posts.
  3. Other possible voltage drop points include the UBEC, fuel pump relay, the frame ground and the battery cable grounds.
  4. If excessive resistance is found at the crimps, replace the crimp-and-seal splice sleeves for the affected circuits.

What is needed

Parts and materials
  • Crimp-and-seal splice sleeves (for the circuits where excessive resistance is found at the crimps)
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

  • Fuel Pressure Regulator: replaced 1
  • Fuel Pump Connector: replaced 1
See the evidence (1 technical documents, 1 records)

Passages of the technical documents

  • The bulletin covers 1999-2003 GMC Sierra, Yukon and Savana.

    1999-2003 GMC Sierra, Yukon, Savana

    General Motors (published by NHTSA) 2015-04-07

  • It applies to engines 4.8 LR4, 5.3 LM7, 5.3 L59, 6.0 LQ4 or 6.0 LQ9.

    Built with engines - 4.8 LR4, 5.3 LM7, 5.3 L59, 6.0 LQ4, or 6.0 LQ9

    General Motors (published by NHTSA) 2015-04-07

  • Some vehicles may have a hum / buzz noise at idle after fuel pressure regulator replacement.

    Some vehicles may exhibit a hum / buzz noise at idle after fuel pressure regulator replacement.

    General Motors (published by NHTSA) 2015-04-07

  • If the vacuum line is removed from the regulator, the noise may change or stop completely.

    If the vacuum line is removed from the fuel pressure regulator, the noise may change or stop completely.

    General Motors (published by NHTSA) 2015-04-07

Read every statement and its source →

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.