SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1802 (ENGINE EXHAUST SYSTEM)REPAIR INSTRUCTIONSEXHAUST MANIFOLD REPLACEMENT (4.2L ENGINE)INSTALLATION PROCEDURE
2004 Oldsmobile Bravada RWD

Installation Procedure

2004 Oldsmobile Bravada RWDSECTION Installation Procedure
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 Exhaust Manifold Gasket
    GM637622Courtesy of GENERAL MOTORS CORP.
  1. Install a new exhaust manifold gasket.
    2. Fig 2: Tightening Exhaust Manifold Bolts
    GM715596Courtesy of GENERAL MOTORS CORP.
  2. Install the exhaust manifold.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. With threadlock GM P/N 12345493 (Canadian P/N 10953488) on the manifold bolts, install the bolts onto the manifold.

    Tighten: 

    1. Tighten the exhaust manifold bolts first pass in sequence to 20 N.m (15 lb ft).
    2. Tighten the exhaust manifold bolts second pass in sequence to 20 N.m (15 lb ft).
    3. Tighten the exhaust manifold bolts final pass in sequence to 20 N.m (15 lb ft).

    4. Fig 3: View Of Exhaust Manifold Studs
    GM637627Courtesy of GENERAL MOTORS CORP.
  4. Install the exhaust manifold heat shield studs, if required.

    Tighten:  Tighten the heat shield studs to 10 N.m (89 lb in).

  5. Install the manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement .
  6. Raise the vehicle.
    7. Fig 4: Installing Exhaust Pipe To Manifold With Seal - 4.2L
    GM758044Courtesy of GENERAL MOTORS CORP.
  7. Install the exhaust pipe to the manifold with seal and secure the pipe with the nuts.

    Tighten:  Tighten the exhaust pipe nuts to 50 N.m (37 lb ft).

  8. Lower the vehicle.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.