Bought the truck used with 155,000miles. The brake pads were replaced all
around. Brake hardware on rear was replaced and drums turned. Master
cylinder was replaced. ABS module was replaced. System bled several times.
I continue to experience inconsistent brake pedal. Sometimes the pedal has
very little travel and other times it goes halfway to the floor. No lights
on panel suggesting a problem with the system. Sometimes I get a feeling
that something is out of round beacuse I detect a wobble/hop when braking,
but that doesn't happen all the time either. All wheels/tires are tight.
Need suggestions as to the cause/fix. TIA.
I had a somewhat similar problem on my truck not quite as severe, but
have you made sure your rear brakes are adjusted properly? When I
first looked at mine, there was literally a 1/4" btwn the shoe and the
Do you have hydroboost or vacuum brakes? If hydroboost make sure you
have enough power steering fluid. Have you had any power steering
issues at the same time?
When I replaced the rear hardware, I adusted the shoes as close as
possible. Once the drums are on, there's no access to the adjuster (Weird
setup); so, I have to rely on the self-adjuster to tighten them up.
I recently had the truck inspected (Pa.) and the mechanic adjusted the
parking brake for some unkown reason. Seems like there's more free play in
that now, but I don't think it should affect normal braking.
Vacuum brakes. They're kind of hissy when applying the brakes. Normal??
Sometimes when I encounter this problem I am able to 'cure' it by making
several ABS assisted stops. You can do this on a wet road or better yet on a
dirt road. get some speed up and slam the brakes on till you stop, oh, make
sure you take all of the potential flying objects out of the truck :-0!
Seems that some gunk can get caughtup in the valves and what not. Some
trucks take more than 20 ABS assisted stops to 'fix'.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.