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#2454131 - 02/19/18 06:03 PM power disk brakes booster
mo71cuda Offline
mopar

Registered: 01/05/05
Posts: 541
Loc: Florida
My brake pedal is hard, but no brakes. This is a power breaker booster failure? If so how to I test to confirm and who is the best to rebuild it?
The car is a 71 cuda 340
Thanks

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#2454135 - 02/19/18 06:10 PM Re: power disk brakes booster [Re: mo71cuda]
John_Kunkel Offline
I Live Here

Registered: 01/20/03
Posts: 19597
Loc: Rio Linda, CA

Did this just happen to a working system or is it a new installation?
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#2454137 - 02/19/18 06:12 PM Re: power disk brakes booster [Re: John_Kunkel]
mo71cuda Offline
mopar

Registered: 01/05/05
Posts: 541
Loc: Florida
Just happened, original system

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#2454237 - 02/19/18 08:19 PM Re: power disk brakes booster [Re: mo71cuda]
RapidRobert Offline
Circle Track

Registered: 11/20/03
Posts: 34018
Loc: Lincoln Nebraska
split the booster/MC & pull MC forward enough to eyeball the pushrod. eng idling. have a helper press the pedal. You under the hood see if the round nub threaded pushrod moves out/forward like it should. I'm thinking the booster (possibly the check valve).
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#2454732 - 02/20/18 04:46 PM Re: power disk brakes booster [Re: RapidRobert]
mo71cuda Offline
mopar

Registered: 01/05/05
Posts: 541
Loc: Florida
Any additional input?
If the booster is bad who rebuilds them or sells replacements.
Thanks

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#2454782 - 02/20/18 06:53 PM Re: power disk brakes booster [Re: mo71cuda]
Morty426 Offline
master

Registered: 03/12/08
Posts: 8424
Loc: Sacramento CA
Originally Posted By mo71cuda
Any additional input?
If the booster is bad who rebuilds them or sells replacements.
Thanks


Dewey Boosters - I think he is in Oregon.

However make sure you don't have a vacuum leak first.

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#2455186 - 02/21/18 02:54 PM Re: power disk brakes booster [Re: Morty426]
mo71cuda Offline
mopar

Registered: 01/05/05
Posts: 541
Loc: Florida
Dewey Boosters - I think he is in Oregon.

However make sure you don't have a vacuum leak first.


Thanks for the info green

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