1991 Ford Explorer Brake booster Pump

1991 FORD EXPLORER
150,000 MILES • 6 CYL • 4WD • AUTOMATIC
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AARONK
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My 91 Explorer has been having problems.. Last week I had to change out the Fuel Pressure Regualtor for other reasons, and now my brakes have started to not really work. Pushing them in sets off a hissing noise and they dont want to give any help with pushing them down. I was told to change the booster pump, but im just worried this is just another temp fix... Any other suggestions or pointers would be great.
Apr 24, 2009 at 4:48 PM
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BLUELIGHTNIN6
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You need to inspect the vacuum lines to the brake booster before replacing the pump itself..it may just be a loose or damaged vacuum line that is leaking causing the brakes to work improperly as well as cause the hissing noise.
Apr 24, 2009 at 4:55 PM