Chevelle Tech - View Single Post - Hard pedal, no boost - good vacuum, good servo, good MC.
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post #2 of (permalink) Old Jul 11th, 13, 2:21 PM
DN
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Dave
 
Join Date: Sep 2003
Location: ILL
Posts: 1,330
Re: Hard pedal, no boost - good vacuum, good servo, good MC.

Puzzling. You have the classic symtoms of a bad booster. You never mention the check valve on booster. Worth testing. Start the car and let it run for a minute. Turn it off, then pull check valve out of booster. You should get a "whoosh" as vacuum escapes.
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