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1992 CADILLAC DEVILLE
How do I know if my booster needs a new brake check valve. Thanks.
have the same problem?
Thursday, June 7th, 2012 AT 1:29 PM
If the check valve goes bad, the braking effort would increase drastically with braking efficiency dropping badly. Engine would most likely idle erratically.
When vehicle is shut off, wait a few seconds and test the brake pedal. If the pedal is soft and starts to get hard with each subsequent depression of the pedal, the valve is good.
Thursday, June 7th, 2012 AT 1:51 PM
to post a reply.
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