1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Weird sound

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Old 01-19-24, 10:15 PM
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Weird sound

Can anyone help me with this sound? Don’t mind the smoke. Spilled some coolant and it’s just burning off. I think the noise is from the air pump, water pump or alternator. Is there anyway I can tell?
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Old 01-19-24, 10:16 PM
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Here’s a better video
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Old 01-19-24, 11:48 PM
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Take the belts off and give each pulley a wiggle and a spin.
I had a similar issue a few years ago and it was the water pump.

Old school guys put their ear to a socket extension placed near a pulley to identify the source of the whine. That's hasn't worked for me.
Old 01-21-24, 08:48 AM
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Sounds like the air pump. You need to take the belts off one at time to try to isolate the source of noise.
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