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Hissing on throttle tip-in; vacuum leak? AOS? Normal?

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05-31-2023, 11:51 AM	#5
blue62 Registered User Join Date: Aug 2018 Location: Woodland Wa Posts: 1,301	Simplest things first... Check your air intake snorkel for debris Check your air filter and make sure it is clean. If you suspect a vacuum leak the get a vacuum gauge and do a vacuum test. They cost about $20.00 -$25.00 at any auto parts store. A vacuum gauge is a basic diagnostic tool that everyone who works on cars should have in there tool kit And know how to use it correctly.

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