Brake problems

[beansblacktsi]

Well my car sat for a good week because I had alot of work to do on it, and its been below freezing at night. The problem I'm having is that my brakes are locked up, I know its a common problem for the parking brake to do that but even when I don't have the parking brake up and it seems more like all the brakes are locked. And about 2weeks ago my master brake cylinder was leaking, I'm still waiting for it to come in. And Ive just started noticing after I got the car running again that from the front drivers side theres a thumping sound and when I brake lightly it gets worse but when I brake hard it stops or when ever I accelerate it goes away. I was just wondering if you think all these are related? And I don't have abs.
Thanks

 

[silver bullit]

Have you bled the brakes?
What are the problems you having?

 

[B-Man]

The thumping almost sounds like a warped rotor. What I don't understand is that it sounds like it wasn't happening before. As for them all being locked, I'd jack up the front, make sure they're turning freely, and then the rear to see which wheels aren't turning and to see which brakes are actually locked up. After that, bleed the brakes, and let us know what happens.

 

[beansblacktsi]

Thanks for the replies, yesterday I jacked the car up in the front one wheel at a time and tried moving the wheel but it almost seemed like it was in gear which it wasn't and I even tried it with the clutch in and same thing both sides would only move back and forth about an inch or two. Does this have something to do with the diff or something like that.? I haven't tried the back yet. Do I just have to take the rotors in and get them check to see if there warped or what? Could all this be because of my brake master cylinder leaking? Thanks in advanced.

 

[B-Man]

Because you're all wheel drive, try it with all the wheels in the air, if you have enough jacks/jackstands to do it. You're right, it does sound as if it's acting like it's in gear. If you have time, take the brake caliper off and see if that gets you different results.

 

[beansblacktsi]

alright I will have to try that tomorrow because its dark and cold outside, does anybody else have an other ideas or theories. Thanks

 

[turbobird14]

thumping could be wheel bearings in the front. also could be loose calipser bolts and/or caliper bracket bolts