GM Service Manual Online
For 1990-2009 cars only

Vibration at Idle

Condition

Action

DEFINITION: Vibration at base idle.

Engine and or Transaxle mounts

Inspect the engine and or transaxle for loose, damaged or missing mounts. Repair as necessary.

Exhaust System

Inspect the complete exhaust system for proper installation and/or damage.

Drivetrain "grounded out" to or on the vehicle chassis

Inspect the compete drive-train for signs of physical contact. Correct as necessary.

Drive Axles

Inspect both drive axles for proper installation and/or damage. Repair as necessary.

Engine Flexplate

Inspect the flexplate for damage, excessive run-out. Correct as necessary.

Base Engine

Inspect the engine for any base level concerns. Repair as necessary.