Starter Noise Diagnosis. Opel Sintra 1997

For 1990-2009 cars

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? | -- | Go to Step 2 | Go to Step 3
2 | Reduce the distance between the starter pinion and the flywheel. Refer to Starter Noise. 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.) | -- | Go to Step 4 | Go to Step 5
4 | Increase the distance between the starter pinion and the flywheel. Refer to Starter Noise. (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.) | -- | Go to Step 6 | Go to Step 7

6

1. Remove the starter motor. Refer to Starter Motor Replacement.
2. Replace the starter drive.
3. Replace worn parts.

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? | -- | Go to Step 8 | System OK

8

1. Remove the starter motor. Refer to Starter Motor Replacement.
2. Check for a bent or unbalanced starter armature.
3. Replace worn parts.

Has the noise stopped?

--

System OK

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