Why are my disc brakes not locking up?
There have been some instances involving GM Disc brakes in which there has been an insufficient offset necessary for the Caliper Brackets to be able to roam comfortably in and out …without getting jammed against the Disc itself.
How can I tell if my brakes are dragging?
Generally when the brakes are dragging, they tend to fade more and aren’t as sensitive. Just a thought….How many miles are on the front hub and bearings, have they ever been replaced? A worn hub and bearing will sound or feel like grit in the wheel or like you have mud tires. Does the brake pedal fully retract when you lift your foot?
What happens when a brake hose detaches?
The inner lining of these hoses sometimes detaches when the hoses get elderly and blocks the hose. It doesn’t prevent braking because the pressures when the brakes are applied are pretty high. But it can prevent/delay the release of the brakes.
What causes rear wheel to lock up when braking?
Problem: One or both rear wheels lockup during braking or the rear end of the car squats when braking. Cause: Rear Wheel lockup or squatting has many causes. Here is the list of possible causes: Service and parking brake adjustment. Rear brake hardware. Shoe lands or bosses. GM clip in wheel cylinders. Brake drum condition.
How can I get my brakes to lock up again?
First check that the brake pedal returns all the way to the top. You should feel a bit of closeness at the top at rest. This is the free play between the pedal push rod and the master cylinder piston. The master cylinder needs this clearance to allow the brake fluid to return to the reservoir.
Why does my master brake not lock up?
Going to do a brake boost check and pull the TB for cleaning (did it 12 months ago). Not sure if the master could be bad, I thought when the MC is bad it gives spongy no brake instead of the hard grabber I’m getting now.
Can a out of round brake drum cause one wheel lockup?
An out of round brake drum or drums that vary in diameter too much from side to side could cause a one wheel lockup condition (Figure 61.8). Measuring drum runout or out of roundness is not easy in the field. Current micrometers do not allow a repeatable measurement to be taken.