Question about 1989 Ford F 150
You have a leak. fill the brake reservoir and have a friend pump the brakes while you hop under and look for fluid coming out. if you see nothing then check your wheel cylinders in the rear brakes for wetness. if nothing there, check the calipers for leaks. on the off chance you still have not found any leak, try bleeding the brakes for air (shoot the bleeder screws with PB blaster 24 hours before trying to open them, they may still break anyway so be gentle) and if the pedal still doesn't get better then you need a new master cylinder. A Haynes manual will tell you how to replace that unit.
Posted on Oct 03, 2009
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Posted on Jan 02, 2017
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