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.

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.

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.

What does the brake warning light on a Chevy Tahoe mean?

Your Chevy Tahoe ‘s brake light indicator is there to let you know that there is an issue with the brake system. It is different than the anti-lock brake system, which gets its own ABS warning light. The brake light indicates that there is a problem with the physical braking system itself.

How does pressure differential work on a Chevy Tahoe?

That way, if the brake system gets a leak or fails, you still have brakes on half of your Tahoe’s wheels. The pressure differential switch measures the difference in pressure between the two circuits and will report that there is a difference by turning on your Tahoe’s brake warning light.