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'96 Ranger 3.0L, 230K miles, 2WD: A month ago the brakes caused a hard pull to the left. My mechanic changed both calipers (fully packed) and hoses. A week later the problem returned, only with a distinct metal to metal screech. I returned the truck to the mechanic and they again changed the calipers and hoses and bled the system well, they claim. This shop has done work for me previously. I do a lot of my own troubleshooting, particulary on the EGR system, with the help of this forum. I don't do brakes. Well, the problem returned again yesterday. The brakes pull very hard to the left, turning the steering wheel. There is very little noise now though? This pullling is most pronounced after doing some city driving for about 15 minutes. The problem diminishes or completely goes away after driving on the interstate for a while. So it seems to be heat related. I am stumped, and I think the mechanic is also stumped. Any ideas? I would suspect a suspension problem if the problem didn't seem to go away until I used the brakes several times in city traffic. Thanks for your help.
if you can, lift the front end and check your wheel bearings. if the tire moves when you push or pull on it, good possibility a bearing is going with this many miles.
Thanks for the responses. The rotors are fine. The calipers were "fully Packed", meaning new pads I presume. The shop also repacked the wheel bearings. But, since I have had to drive on some of the roughest roads here every day, I will jack the truck up tonight and check for excess movement. Yes, this truck has a lot of miles on it, but it has been the most reliable vehicle I've ever owned - except for that troublesome DPFE sensor. I've owned many vehicles since 1969, and this is easily the best. Does the brake system have a proportionator valve?