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BMW Repair/BMW 330ci Fan Squeal

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Follow-Ups to Answer from Expert John Kingery

NewtonBMW wrote at 2009-03-29 02:44:44
99% chance it is you idler pulley, very very common, how ever you would not want to over look a bad water pump. take the belt off and see if there is any play in the water pump then try to spin the idler pulley my guess is the pulley wont spin or will spin poorly.

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John Kingery

Expertise

BMW Repair (e24, e36, e38, e39)

Experience

Owned/maintained 5 BMW's, plus friends. Done exhaust systems, head gaskets, fuel systems, brakes, suspensions, electrical, seats, etc., etc.

Organizations
BMW Club

Education/Credentials
degreed Mechanical Engineer, w/20 years experience

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