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unindicted co-conspirator
Join Date: Jul 2007
Location: Fresno, CA
Posts: 1,660
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it's probably the SAI (secondary air injection) that sometimes sounds like a hair dryer
it's in the engine compartment on the drivers side next to the coolant tank
it comes on for a min or 2 at cold start
try unplugging it before you do the next cold start and see if the noise is still there
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'03 996 - sport exhaust, sport seats, M030 sport suspension, stability control, IMS Solution
‘86 928S3 - barn find project car
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