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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 203 (Engine Mechanical - 3.5L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Intake Manifold Cleaning and Inspection - Lower >> Cleaning & Inspection Procedure

Cleaning & Inspection 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 Intake Manifold Coolant Pipe
    GM69942Courtesy of GENERAL MOTORS CORP.
  1. Remove the intake manifold coolant pipe bolt, if required.
  2. Remove the intake manifold coolant pipe, if required.
    3. Fig 2: View Of Intake Manifold
    GM843900Courtesy of GENERAL MOTORS CORP.
  3. Clean the intake manifold gasket mating surfaces using GM P/N 12346139 (Canadian P/N 10953463) or equivalent.
  4. Clean the fuel injector bores.
  5. Inspect the intake manifold for damage.
  6. Repair or replace the intake manifold as necessary.
    7. Fig 3: View Of J 21882
    GM69939Courtesy of GENERAL MOTORS CORP.
  7. Apply sealant GM P/N 12345493 (Canadian P/N 10953488) or equivalent to the end of the intake manifold coolant pipe, if required.
  8. Install the intake manifold coolant pipe using J 21882  . See Special Tools .
    9. NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  9. Install the intake manifold coolant pipe bolt.

    Tighten:  Tighten the intake manifold coolant pipe bolt to 10 N.m (89 lb in).

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