Brakes pulled to the floor when engine started?
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Senior User
Joined: Aug 2004
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From: Nashville
Brakes pulled to the floor when engine started?
Hey everyone, long time no see!
I just bought a 73 F100 XLT Ranger, and when the engine is started the brake pedal is pulled to the floor by the booster, which I think is contributing to the brakes sticking. is my booster a goner or is there anything I can do to save it?
I just bought a 73 F100 XLT Ranger, and when the engine is started the brake pedal is pulled to the floor by the booster, which I think is contributing to the brakes sticking. is my booster a goner or is there anything I can do to save it?
Laughing Gas
Joined: Aug 2010
Posts: 896
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From: Bothell
Does the peddle come back up after a while or do you have to pull it up?
Its most likely the booster (or the internal booster spring) but could be your master cylinder.
might want to try it all with the vacuum line to the booster plugged off/disconnected
Its most likely the booster (or the internal booster spring) but could be your master cylinder.
might want to try it all with the vacuum line to the booster plugged off/disconnected
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Senior User
Joined: Aug 2004
Posts: 394
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From: Nashville
Thanks for the reply! everything works fine with the engine off, so I assume disconnecting the vacuum source would produce the same results. Is the spring prone to rusting and falling apart? Guess I'm going to be looking for a new booster. i see 2 different styles in the catalogs
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Senior User
Joined: Aug 2004
Posts: 394
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From: Nashville
That's what I was afraid of. I was hoping I was missing something stupid. Thanks for the response, time to find a rebuilder.
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frogkid11
1973 - 1979 F-100 & Larger F-Series Trucks
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Oct 30, 2012 10:53 PM
