Quote:
Originally Posted by jcb986
The squeal, if the car is sitting still, has to be one of two things. Something slipping on the belt or air being sucked in. If you have discontected the belt and it's gone then you need to check each part on the drive. If it still squealing then it's air being sucked in. My AOS failed slowly, had the squealing when engine warmed up...very loud as it got hotter. Decided to remove oil cap when engine running and could not...bad AOS.
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This would be a good test on direction to go if the AOS is suspected and the symptom is easily replicated ...
wonder if the OP found out what it was..
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