f150 brake problem
Ok, well is it just a wobble in the front? How fast is the squeek? Have you checked your front drive shaft for play? Did you check all your u-joints? A u-joint can cause a squeek and vibration (wobble), but if it only does it when you apply the brakes, it's most likely what Good old Bill said, warped rotors. If you take your rotors into a machine shop, they should be able to check them for true and resurface them if need be for less than a new pair would cost, just call first before you show up with two rotors. It's possible to tell your self whther they are warped, but you would be better off spending $5 and have a machine shop check for you.
Oh, yeah. The reason I say machine shop instead of a brake shop is because brake shops like midas, or somewhere like that will charge you a ton and then tell you you need new rotors anyways. You can also call a brake shop and ask what the thickness tolerances are for your specific rotors and they should be able to look it up and tell you, Just tell them you have a caliper and can measure it yourself because the car will have to be towed otherwise, if they ask why you need the specs. A dealer or autoparts store may be able to tell you this info as well. You should be able to find that in a FSM too, but I don't have one yet.
Oh, yeah. The reason I say machine shop instead of a brake shop is because brake shops like midas, or somewhere like that will charge you a ton and then tell you you need new rotors anyways. You can also call a brake shop and ask what the thickness tolerances are for your specific rotors and they should be able to look it up and tell you, Just tell them you have a caliper and can measure it yourself because the car will have to be towed otherwise, if they ask why you need the specs. A dealer or autoparts store may be able to tell you this info as well. You should be able to find that in a FSM too, but I don't have one yet.
Last edited by gritz; Jun 12, 2009 at 02:19 PM.
Out of aligned rotors can be measured with a dial indicator, yeah right, who has that. The best thing to do is to take the rotors to a machine shop and have them machined. ABS sensors will collect dust and metal from the brakes and can cause the sensor to give false signals. Cleaning with a rag and compressed air will remove these particles.

