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post #1 of 3 (permalink) Old 09-26-04, 09:50 AM Thread Starter
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Join Date: Jun 2003
Posts: 13
need help

I have 97 f150 with rear anti lock brakes
i put new rotors and calipers with pads on the front
will do so the fluid drain out figured i would just bleed lines when done.
well i have bled them at all four wheels no air coming out new clean fluid
comes out went thru about 32 ounces of fluid.
i can pump brakes up to pressure but as soon as i take foot off
and push brake pedal it goes all the way to floor.
do you think i have a master cylinder problem or is this a problem
with the abs system? i have no brake lite or abs lite come on.
also when i start truck and try to pump up there is nothing
i cant it to pump up.

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post #2 of 3 (permalink) Old 09-28-04, 05:19 AM
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Join Date: Aug 2002
Location: western suburbs
Posts: 40
Re: need help

Try this to source where problem is cheaper to check than just replace parts.
This is if your sure there is no air traped in lines.

Get a brake hose clamp & clamp the rubber line from body to the diff. then see if the brake pedal stays hard if so rear brakes out off adjustment. if not try left hand front hose try again if O.K siezed caliper if not try right front hose.if no sucess here you will need three clamps & do all at the same time . Process of elimination theory.
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post #3 of 3 (permalink) Old 09-28-04, 06:22 AM Thread Starter
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Posts: 13
Re: need help

Thanks for the reply, I hate to admit this but,I found out last night that
I had the calipers on the wrong sides, which left the bleeder valve pointed
towards the floor, which would not let the trapped air out. I moved the calipers to the correct side and the brake pedal is back. Now my problem
is that the one caliper does'nt appear to be release all the way and my wheel
turns harder when no brakes applied. other side turns freely. The parts guy
is going to give me another caliper to try.
thanks for your help,
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