GM Service Manual Online
For 1990-2009 cars only

Description

Problem

Action

Grinding Noise from the Starter During Cranking - The noise occurs while the ignition key is still in the START position. The noise is similar to the sound of a starter engaging while the engine is running.

The starter motor clutch is worn

Replace the starter motor. Refer to Starter Motor Replacement .

Whine from the Starter During Cranking - The engine starts, but there is a high-pitched whine during cranking.

The distance is too great between the starter pinion and the flywheel.

Remove the starter shims at the starter mount. Refer to Starter Pinion Clearance Check .

Whine from the Starter after the Engine Starts - There is a high-pitched whine when the ignition key is released after the engine starts.

The distance is too small between the starter pinion and the flywheel. Flywheel runout contributes to the intermittent nature of the problem.

Add shims to the starter mount. Refer to Starter Pinion Clearance Check .

Rumble, Growl, or a Knock after the Engine Starts - A rumble, growl, or a knock (in severe cases) as the starter is coasting down to a stop after starting the engine.

The starter armature is bent or unbalanced.

.Replace the starter motor. Refer to Starter Motor Replacement .