To correct starter motor noise during starting, use the following procedure:
Step | Action | Value | Yes | No |
---|---|---|---|---|
1 | Do you hear a high pitched whine during cranking (before the engine fires) but the engine cranks and fires normally? | -- | ||
2 | Reduce the distance between the starter pinion and the flywheel. Refer to step 3 in the text. Has the noise stopped? | -- | System OK | -- |
3 | As the key is being turned, do you hear a high-pitched whine after the engine fires? (The engine cranks and fires normally. This is often diagnosed as starter hang-in or a weak solenoid.) | -- | ||
4 | Increase the distance between the starter pinion and the flywheel. Refer to step 3 in the text. (Flywheel runout makes this appear to be intermittent.) Has the noise stopped? | -- | System OK | -- |
5 | Is there a loud whoop after the engine fires, but while the starter is still held engaged? (It may sound like a siren if the engine is revved while the starter is engaged.) | -- | ||
6 | Remove the starter motor. Refer to Starter Motor Replacement . Has the noise stopped? | -- | System OK | -- |
7 | Do you hear a rumble, a growl, or, in severe cases, a knock as the starter is coasting down to a stop after starting the engine? | -- | System OK | |
8 |
Has the noise stopped? | -- | System OK | -- |