hard brake pedal
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
Check to make sure you have vacuum to the booster,
if good,
check booster vacuum line grommet,
if good,
check the booster to master body/rod seal
if good,
probably a bad diaphragm in the booster
if good,
check booster vacuum line grommet,
if good,
check the booster to master body/rod seal
if good,
probably a bad diaphragm in the booster
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
If pedal travel is OK and the car stops but takes excessive pedal effort, then it sounds like a booster issue. Disconnect and plug the vacuum line to the booster and see how the car stops. If there is no difference in pedal effort, then the booster needs attention.
Gary
Gary
Supporting Vendor
Joined: Mar 2008
Posts: 576
Likes: 3
From: Muskegon MI
I can help with a new one if it comes to that.
Andrew
800-442-0335
Instructor
Joined: Jan 2008
Posts: 208
Likes: 0
From: McDonough GA
Read the sticky note on Bleeding the Brakes Please at the first of the forum. The pedal on my '81 was as hard as Chinese arithmetic until I followed the instructions. No problem since.
Last edited by Jack Wood; Feb 20, 2011 at 09:44 PM. Reason: additional information
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