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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 238 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Replacement - Left (3.9L) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Exhaust Manifold Bolts - Left
    GM1617970Courtesy of GENERAL MOTORS CORP.
  1. Position a NEW exhaust manifold gasket to the cylinder head.
  2. Install the exhaust manifold.
  3. NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  4. Install the exhaust manifold bolts.

    Tighten:  Tighten the exhaust manifold nuts to 20 N.m (15 lb ft).

  5. Fig 2: Identifying Exhaust Manifold Heat Shield - Left
    GM1617968Courtesy of GENERAL MOTORS CORP.
  6. Install the exhaust manifold heat shield.
  7. Install the exhaust manifold heat shield bolts.

    Tighten:  Tighten the exhaust manifold nuts to 10 N.m (89 in ft).

  8. Fig 3: Identifying Exhaust Crossover Pipe
    GM1679429Courtesy of GENERAL MOTORS CORP.
  9. Install the exhaust crossover pipe (2) to left exhaust manifold nuts.

    Tighten:  Tighten the exhaust manifold nuts to 20 N.m (15 lb ft).

  10. Position the heater pipes back and connect hoses.
  11. Install the nuts holding the heater pipe to the throttle body.
  12. Install the hose clamps to the heater pipes and hose.
  13. Fig 4: Identifying Exhaust Manifold Heat Shield & Bolts - Left
    GM1679427Courtesy of GENERAL MOTORS CORP.
  14. Install the exhaust crossover heat shield (2) and bolts (1).

    Tighten:  Tighten the exhaust manifold nuts to 10 N.m (89 in ft).

  15. Install the radiator inlet hose. Refer to RADIATOR HOSE REPLACEMENT - INLET .
  16. Install the right engine mount strut bracket. Refer to ENGINE MOUNT STRUT REPLACEMENT - LEFT SIDE .
  17. Install air cleaner outlet duct. Refer to AIR CLEANER OUTLET DUCT REPLACEMENT .