ALL 4 BRAKES ARE LOCKED UP

1995 NISSAN ALTIMA
120,000 MILES
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DISPATCHER
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THE CAR WOULD NOT COME OUT OF PARK. WE FOUND THE BRAKE SWITCH BAD, REPLACED IT AND IT WORKED. AT THE SAME TIME WE REPLACED ALL 4 BRAKES INCLUDING 3 NEW CALIPERS. IT SEEMED OK, BUT AFTER 2 MILES THE CAR SLOWED DOWN AND NOW 4 BRAKES ARE LOCKED. I DON'T THINK ITS THE BRAKE HOSES. SOMEONE SAID A BOOSTER CHECK VALVE. OTHERS SAY ABS, THE ABS LIGHT IS ON. WE TRIED UNPLUGGING IT, PULLING THE FUESES FOR THE ABS TOO, STILL NO LUCK. I'VE READ NUMEROUS PEOPLE HAVING THIS SAME PROBLEM AND NO DEFINITIVE ANSWERS. IT WAS FINE TILL WE CHANGED THE BRAKE SWITCH AND THE NEW PADS AND CALIPERS. CAN ANYONE HELP?
Nov 22, 2011 at 12:44 AM
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ASEMASTER6371
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loosen the master cylinder from the brake booster and see if the wheels free up. do not drive it. if it does, your issue may be with the booster.

Roy
Nov 22, 2011 at 12:58 AM