small squeak at start

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small squeak at start

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06-03-2015, 04:08 AM

kk2002s

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Join Date: Sep 2012

Location: S. New Jersey

Posts: 1,239

Garage

The Secondary air pump(SAP) runs at cold start for about 1-1/2 - 2 minutes (Sounds like small vacuum)
If your high pitch sound is during that and goes away when pump stops, indications are bearings in SAP are dry (They can be re-greased)

Obviously if the sound is not associated with SAP then check previous posters suggested components

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