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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) >> Removal Procedure

Removal 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 Heat Shield & Bolts - Left
GM1679427Courtesy of GENERAL MOTORS CORP.
  1. Remove the air cleaner outlet duct. Refer to AIR CLEANER OUTLET DUCT REPLACEMENT .
  2. Remove the right engine mount strut bracket. Refer to ENGINE MOUNT STRUT REPLACEMENT - LEFT .
  3. Remove the radiator inlet hose. Refer to RADIATOR HOSE REPLACEMENT - INLET .
  4. Disconnect the heater hoses from the heater pipes.
  5. Remove the nuts holding the heater pipes on the throttle body.
  6. Position the heater pipes aside.
    7. Fig 2: Identifying Exhaust Crossover Pipe
    GM1679429Courtesy of GENERAL MOTORS CORP.
  7. Remove the exhaust crossover heat shield bolts (1) and shield (2).
  8. Remove the exhaust crossover pipe (2) to left exhaust manifold nuts.
    9. Fig 3: Identifying Exhaust Manifold Heat Shield - Left
    GM1617968Courtesy of GENERAL MOTORS CORP.
  9. Remove the exhaust manifold heat shield bolts.
  10. Remove the exhaust manifold heat shield.
    11. Fig 4: Identifying Exhaust Manifold Bolts - Left
    GM1617970Courtesy of GENERAL MOTORS CORP.
  11. Remove the exhaust manifold bolts.
  12. Remove the exhaust manifold.
  13. Remove the exhaust manifold gasket.
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