hi, first post, i have my son`s old 95 f150 134000 mi had for 5 years he got new car to save on gas i got his old truck i`m keeping for ever or at least for a while i drive once a week my weekend truck. ok here`s the problem start the truck put in gear drive off hit the brakes and the front lock up,peddle is hard, front brakes are 1 year old rear are 2 years old no lite on after driveing a block or so no lock up but hard peddle.
son said it`s alway been like that.
the truck has ralbs ,5 speed power brakes a/c reg cab ,short bed, in line 6.

thanks Steve

 

Possible causes for front brakes to "hold" are caliper sliders are sticking (need cleaned and greased), caliper pistons are sticking (can be caused by torn rubber boots letting in water and dirt, need to be freed up) or defective front flexi brake hoses not allowing fluid to return to master cylinder. Hope this helps. After driving feel each wheel to see how hot they are, a problem brake will generate much more heat.

 

If you mean that the first time you apply the brakes that the front brakes lock up then it is probably just some rust on the brake disc. If it is just rust then when you apply the brakes it will have more than normal friction until you rub the rust off. I notice this after a rain on my truck (92 f150 2wd). One or two stop signs and then problem goes away.

 

If the front brake hoses have never been replaced, I would replace them now. Also, like Lazy K suggested, clean & grease caliper slides.

 

Have same prob on my 93. When raining or wet, the first and sometimes second application of brakes lock up the front.

Not sure why, other than moisture related, but it has done this since the truck was new and it has had many new pads installed.

After 15 years of this, I have learned to accomodate this problem by lightly touch the brake a few times while heading out the driveway.

A few years ago, I moved somewhere where it doesn't rain much and problem mostly solved.

 

thanks for the ideal's live in Fla. it rains all the time but it happens wet or dry. McLeod, I think I'm not sure too. It did it before and after new caliper's will try new lines ,clean and grease slider's heat thing is smart. I was thinking master cylinder.
thanks
steve