Obnoxious whining noise cm 871 front engine
08-03-2018, (Subject: Obnoxious whining noise cm 871 front engine ) 
Post: #4
RE: Obnoxious whining noise cm 871 front engine
They all whine at operating temp. If it's definately making more noise than other ISXs then it's most likely the oil pump shimming or internal shaft wear. If the pump checks out fine then if could be any of the timing gears.
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RE: Obnoxious whining noise cm 871 front engine - Signature620 - 08-03-2018



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