What would cause a back tire to lock up?
The likely cause is a failed wheel bearing unless something exceptional has caused the brake caliper to lock the brake rotor. By far, the most common cause of what you are describing is simply bearing failure though.
What year did Chevy start putting disc brakes on trucks?
1972
Starting in 1972, front disc brakes were standard equipment on GM light duty trucks. After all, U.S. lawmakers and auto manufacturers were especially focused on safety in the early ’70s.
Why are the brakes on my GMC Sierra not working?
I have an 01 GMC Sierra 2500 (non HD) with 232,000 miles. I’ve been having problems with the brakes lately. Recently, the brakes would not release after you let off the pedal, and continually got worse until you could not physically move the truck.
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.
When does front driver side tire lock up?
A bearing should show itself in 2wd or 4wd, if it locks up in 4wd, it should be noticeable in 2wd. Re: Front driver side tire locking up when 4wd engaged help! Going on my general 4×4 experience, I would agree with front diff.
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.
I have an 01 GMC Sierra 2500 (non HD) with 232,000 miles. I’ve been having problems with the brakes lately. Recently, the brakes would not release after you let off the pedal, and continually got worse until you could not physically move the truck.
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.
Why are the brakes on my GM Truck smoking?
By the time I got off the highway and parked off the road, the rear brakes were smoking. And the brake pedal was as hard as a rock. I could smell the front brakes as well, but they were not smoking. The 2 Brake lights that are on the dash have lit up from time to time, but i have not been able to check the codes, and they only sporadically come on.
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.