1991 Ford Explorer Brake booster Pump

Tiny
AARONK
  • MEMBER
  • 1991 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
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.
Friday, April 24th, 2009 AT 4:48 PM

1 Reply

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
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.
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Friday, April 24th, 2009 AT 4:55 PM

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