Vac. leak...... I think - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mike Culpepper · 04-08-2005, 09:52 AM

I think I have a power brake booster leak and have a few Q's. There is a hissing sound near the booster, and when I pinch the boosters' vac. hose with channel locks, theengine idle changes.
I was planning to replace the power booster but how do I know if the Master cylinder needs replacing also? COuld the MC and not the booster be the problem?

Can the booster be replaced without removing the MC (i.e. unbolt the MC to booster bolts and slip out the booster, or does the MC need to be disconnected from its' brake lines and removed also).

Any gaskets or seals between the MC and booster that don't usually come with a new booster?
Mike

04-08-2005, 09:52 AM	#1
Mike Culpepper Red Join Date: Feb 2003 Location: Llano... Texas Hill Country Posts: 448	Vac. leak...... I think I think I have a power brake booster leak and have a few Q's. There is a hissing sound near the booster, and when I pinch the boosters' vac. hose with channel locks, theengine idle changes. I was planning to replace the power booster but how do I know if the Master cylinder needs replacing also? COuld the MC and not the booster be the problem? Can the booster be replaced without removing the MC (i.e. unbolt the MC to booster bolts and slip out the booster, or does the MC need to be disconnected from its' brake lines and removed also). Any gaskets or seals between the MC and booster that don't usually come with a new booster? Mike __________________ '72 Cheyenne LWB 350/350 "The sun don't shine on the same dog's ass all the time." - Catfish Hunter (commenting on why he was not able to pitch another perfect game).



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