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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1764 (ENGINE MECHANICAL - 4.2L)REPAIR INSTRUCTIONSOFF-VEHICLE REPAIR INSTRUCTIONSTHREAD REPAIRCYLINDER HEAD BOLT HOLE THREAD REPAIR
2004 Oldsmobile Bravada AWD

Cylinder Head Bolt Hole Thread Repair

2004 Oldsmobile Bravada AWDSECTION Cylinder Head Bolt Hole Thread Repair
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Isuzu Ascender, 2005 GMC Envoy XUV, 2005 GMC Envoy XL, 2005 GMC Envoy, and 2005 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Cylinder Head Bolt Hole Required Tools
GM764287Courtesy of GENERAL MOTORS CORP.

The cylinder head bolt hole required tools consist of the following:

  • Drill (1) J 42385-402
  • Tap (2) J 42385-403
  • Installation driver (3) J 42385-404
  • Alignment pin (4) J 42385-303
  • Bushing (5) J 42385-302
  • Bolts (6) J 42385-421
  • Fixture plate (7) J 42385-401
IMPORTANT:
  • Remove the fixture plate prior to installing the insert with the installer tool.
  • The use of a cutting type fluid GM P/N United States 1052864, GM P/N Canada 992881, WD 40® or equivalent is recommended when performing the drilling, counterboring and tapping procedures.

When installed to the proper depth, the flange of the insert will be seated against the counterbore of the drilled/tapped hole.

    Fig 2: View Of Bushing, Fixture Plate, Bolts & Bolt Hole
    GM764289Courtesy of GENERAL MOTORS CORP.
  1. Position the fixture plate (3) with the bushing (1) installed over the cylinder head bolt hole to be repaired (4).
  2. Loosely install the fixture plate bolts (2) into the remaining cylinder head bolt holes.
    3. Fig 3: View Of Alignment Pin & Fixture Retaining Bolts
    GM764292Courtesy of GENERAL MOTORS CORP.
  3. Position the alignment pin (1) through the bushing and into the cylinder head bolt hole.
  4. With the alignment pin in the desired cylinder head bolt hole, tighten the fixture retaining bolts (2).
  5. Remove the alignment pin (1) from the cylinder head bolt hole.
    6. Fig 4: Drilling Out Threads Of Damaged Hole
    GM764294Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.