I just purchased a 1975 Chevy pickup and the brakes pulled to the right. After checking the front brakes, I found that the left caliper seemed to have a grater drag then the right and appeared to have been overheated. I have installed rebuilt calipers on both right and left along with new brake pads. The left caliper still has a grater drag then the right and the brakes still pull to the right. What is the problem? :'(
Try checking the rear brakes. How are you determining that the left caliper has more drag? If it really does, then the truck should pull to the left, not the right. The proportioning valve should leave only about 2psi residual pressure on the front calipers, so there should be very little drag there, but there should be some.
Yes Jim P you would think that it would pull to the left. The way I am determining that the left has more drag is by turing the rotors. The left rotor is mutch harder to turn then the right, some times I have to bleed the left caliper befor it can be turned at all. I have checked the rear brakes and adjusted them as well. Can the proportioning valv be keeping more pressure on the left brake?
> Can the proportioning valv >be keeping more pressure on the left brake? I don't know the answer to that. But I suspect it may be possible if the valve is defective. Maybe someone else here would be able to help you out with that. What you're describing is something I've never experienced, and seems to defy logic, so I don't want to try to give you advice that might be wrong. Sounds like you might want to have someone take a look at it. Sorry I can't be of more help. One thing that comes to mind would be a crimped hydraulic line feeding the left caliper. It would be worth checking. JP
JP, After more trouble shooting I have found a bad brake hose on the left. The hose was #1 keeping pressure on the caliper bleeding down slowly over time (about 10 minutes) after releasing the brake #2 The hose was not allowing the same volume or pressure of fluid to the left caliper as the right. So your theory of a crimped brake line seems to have been right on, thank you. Frank
