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Joined: Feb 2007
Posts: 188
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2007
Posts: 188 |
A friend has a 69 SS Chevelle with power disc brakes. It has the baseline 396 so vacumn should not be a problem. At times the brakes work fine/normal-power brake feel and stopping. Other times, a lot more foot pressure is needed-almost like brakes are fading. Original booster replaced twice, both times with rebuilt booster. The problem is still not fixed. Any suggestions
Thanks,
Lou 44888
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The next stop should be the master cylinder............
Gene Schneider
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Joined: Feb 2007
Posts: 188
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Feb 2007
Posts: 188 |
The master cylinder was replaced when the first booster was replaced. Car has new lines and rubber hoses
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
I believe that those did not have a vac. reserve tank, the reserve was held in the booster. There should be a check valve plugged into the booster. If this was not holding vacuum there may be a loss of vacuum in the booster.
Gene Schneider
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