GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Oldsmobile
🢒
1998
🢒
Cutlass
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Engine
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Engine Mechanical - 3.1L and 3.4L
🢒 Exhaust Manifold Cleaning and Inspection
Inspect the exhaust manifold mating surface for flatness.
Inspect the exhaust manifold for cracks or damage.
Replace the exhaust manifold if necessary.