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- Thread starter rjppunk
- Start date
Roadkill
Well-Known Member
Sounds like it doesn't know the words. LOL
At those speeds/rpms the fan is engaged and might be sounding weird. Testing the alt is simple with a meter, as well run the engine for a minute and then touch the alt. If you put your hand on it and can't keep it there because of the temp, then the bearings are shot.
At those speeds/rpms the fan is engaged and might be sounding weird. Testing the alt is simple with a meter, as well run the engine for a minute and then touch the alt. If you put your hand on it and can't keep it there because of the temp, then the bearings are shot.
Bob Ayers
Well-Known Member
The IAC valve has been known to cause a humming sound. Try cleaning it to see if that helps.
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