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BoxsterSenior · 12-16-2008, 04:22 AM

Thanks for the reply LB.
I checked the rigid vacuum line and grommet on the front side of the booster…..does not appear to be leaking. Further checking indicates air sucking from the bellows area (between the booster and the firewall). Strange! Would this verify the booster diaphragm has failed?

12-16-2008, 04:22 AM	#3
BoxsterSenior Registered User Join Date: Oct 2008 Location: Gastonia, NC Posts: 38	Power Brake Booster Thanks for the reply LB. I checked the rigid vacuum line and grommet on the front side of the booster…..does not appear to be leaking. Further checking indicates air sucking from the bellows area (between the booster and the firewall). Strange! Would this verify the booster diaphragm has failed?