Question about 1989 Ford F 150

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Having problems with the brakes on my f150 pickup i have changed the calipers and bleed them properly and still there is a problem can anyone tell me if it could be the master cylnder or the splitter valve or something else

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Maybe bleed the back brakes,Have you adjusted the back brakes yet?if the master cylinder is bad then the pedal will go all the way to the floor,and not always lets you stop.if the back brakes arent adjusted enough then you would have to pump them a couple of times to stop.The same if air was in the lines.

Posted on Sep 27, 2009

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1 Answer

Rear caliper on 2005 Ford F150 not releasing, replaced both rear calipers, now pedal goes to the floor - no brakes at all. What can/should i do?


Sounds like it still has some air in the system or a bad master cylinder. First try bleeding all air, there is definitely some air left in the lines and this is most probably causing the problem. Bled the lines at the bleeder screws on the calipers. ---------- There is air left in the brake line.Any time the brake system is opened to replace brake lines, caliper, pads etc etc.Mostly the air enters the system, and that air has to be completely bleed.Otherwise the same symptoms , what you are getting will be noticed.-------- Brakes can be bled manually, with a power bleeder, injector tool or vacuum bleeder.IIt does not make any difference which method you use as long as all the lines and components are flushed with enough fluid to remove any trapped air bubbles or air pockets.----
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