GM Service Manual Online
For 1990-2009 cars only

Condition

Action

DEFINITION: Noise while driving

Engine or transmission mounts

    • Inspect the engine mounts and the transmission mounts for wear or loose mounting fasteners.
    • Replace any faulty engine or transmission mounts or loose fasteners.

Exhaust system

    • Inspect the exhaust system for loose or missing hangers.
    • Inspect the exhaust system for contacting body or frame components.
    • Adjust or repair the exhaust system.

Interference with drivetrain or body

    • Inspect components surrounding the transmission assembly and engine for improper contact.
    • Repair or adjust as necessary.

Drive shafts

    • Inspect the drive shafts for worn components.
    • Replace the drive shaft if worn.

Engine malfunction

    • Ensure engine is operating properly.
    • Repair engine to operate properly.

Oil cooler pipe

    • Inspect the oil cooler pipe routing and alignment.
    • Repair the oil cooler pipe routing and alignment.

Internal transmission part failure

    • Disassemble the transmission and inspect the following:
       - Worn bearings
       - Bent shafts
       - Planetary assemblies for wear
       - Excessive wear on gears
    • Replace transmission if any parts are faulty.