keefus71
Newbie
Got a 96 Suburban K1500 4wd. The driver side front brake keeps locking up while braking. Any ideas if its a bad rotor or bad caliper. Or just needs to be bled?
CK5
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Front driver wheel locks and skids under braking.
- Thread starter keefus71
- Start date
chulisohombre
1/2 ton status
My ds front was sticking caliper and burnt through the rotor and pads. You could try bleeding it. I could feel mine dragging on the front brakes. It is the closet to the master cylinder so it gets fluid faster than the rest even if there is air in the system. Dies it feel like the fronts are working better than the rear. It can overheat the fronts and burn through the pads and warp the rotors. Make sure the rears are adjusted correctly. Sometimes the auto adjusters quit working and the rear brakes get weak.
MrSchaeferPants
1/2 ton status
Best/easiest thing to do is just look at it. Take the wheel off, get a visual on the pads/rotor. Make sure the rotor isn't warped in any way. Have someone press the brakes while you look at the caliper. Brake fluid goes bad, go ahead and suck everything out of the master cylinder, replace it with fresh fluid, bleed all around and get 100% new fluid in there. I bet it's never been done.
Could be calipers, proportioning valve. Calipers aren't expensive and easy to swap if it comes to that.
Could be calipers, proportioning valve. Calipers aren't expensive and easy to swap if it comes to that.
Stomis
Professional Amateur
More than likely a bad caliper or pin/slide. Could be a soft line or even a dinged hard line.
If it was proportioning valve both front would do it as they're the same output when it comes to that. Now abs modules are a different story however.
If it was proportioning valve both front would do it as they're the same output when it comes to that. Now abs modules are a different story however.
Check for a leaking caliper, brake fluid on the pads can cause grabbing brakes.
Proabably not the rotor. Take that caliper off and inspect everything. Is the pad wear flat or at an angle? Fluid on them? Take the pins and slides all apart, clean them and re-install. Look for a leaking piston seal. It's also possible the caliper mounting bolts are getting loose (!) When it's all put together (no wheel or lug nuts), you should be able to move the caliper in and out by hand, although with difficulty.
