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This is the Air Pump..u r hearing (archive)

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Posted by Pat P on September 06, 2001 at 18:06:22:

In Reply to: What is this sound??? posted by danny on September 06, 2001 at 13:55:44:

Whenever I start the car from cold, I hear this weird whining sound, after a few minutes it stops... Is this the air compressor that pressurizes the cooling system (my car has the air valve on the expansion tank) or is this something I need to get checked out? Thanx in advance

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