Thread: Brakes - Combination Valve / Proportioning Valve
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Old 05-07-2014, 12:34 PM   #9
Crvett69
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Re: Brakes - Combination Valve / Proportioning Valve
pull the hose out of the booster and see if you have vacuum at the valve on the end while its idling. if you have vaccuum then your booster is probably bad
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