Question about 1990 Porsche 928
The vacuum may not seem strong enough,but most likely is,the check valve at the booster assures that the vacuum is stored in the booster,so it has enough vacuum to operate correctly.The problem will be the booster,or,the brakes themselves are not stopping the car.Remember,the vehicle has abs also,and the abs will not allow the car to stop to sudden in the first place,but I would have the brake liners,and rotors checked out first,before replacing the booster.Now,if the brake pedal is just plain hard,then it is likely the booster.I hope this was helpful,if so,please let us know,thank you.
Posted on Jan 30, 2010
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Posted on Jan 02, 2017
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