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Home >> Pontiac >> 2008 >> Grand Prix GXP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 3.8L) >> Repair Instructions - Off Vehicle >> Exhaust Manifold Cleaning and Inspection

Exhaust Manifold Cleaning and Inspection

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Cleaning Exhaust Manifold
    GM1229790Courtesy of GENERAL MOTORS CORP.
  1. Clean the exhaust manifold mating surfaces.
  2. Clean the exhaust manifold.
  3. Inspect the exhaust manifold mating surfaces for damage.
    4. Fig 2: Cleaning/Inspecting Exhaust Manifold Flange
    GM187027Courtesy of GENERAL MOTORS CORP.
  4. Inspect the exhaust manifold flange for straightness, using a straight edge and a feeler gage.
  5. If the exhaust manifold flange is warped more than 0.05 mm (0.002 in) replace the exhaust manifold.
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