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Why are my brakes not working on my GMC Sierra?

Why are my brakes not working on my GMC Sierra?

The brake booster magnifies your pedal, making it easier for you to apply the brakes.You’ll need a special vacuum tool to troubleshoot. The master cylinder can also cause issues if it is losing fluid.

Is the ABS pump running in my GMC Truck?

Many GM and GMC trucks may experience a condition where the ABS pump motor runs constantly. The problem affects the following vehicles The ABS pump motor gets its running instructions from the Electronic Brake Control Module (EBCM).

Are there any brake vacuum pump problems in GM cars?

October 10, 2018 — A GM brake vacuum pump lawsuit alleges Cadillac, Chevrolet and GMC vehicles have problems with the brake boosters and hard brake pedals as part of defective braking systems. Included in the proposed class-action lawsuit are all consumers who purchased or leased in California one of the following General Motors vehicles:

What causes a GMC Sierra caliper to stick?

Your GMC Sierra’s braking system is the most important safety feature on the vehicle. If it does not work properly, it can put you in a situation where you can be injured or killed. There are quite a few different situations that can cause a caliper to stick. Smell – Once brakes heat up so far, they begin to glaze.

Is there a recall on my GMC Sierra?

The kicker is I had a recall service performed on my truck not more than six weeks to clean the front wheel sensors. The recall dealt with a problem where the ABS would turn on during low speed brake applications between 3.7 mph to 10 mph.

Why is my emergency brake not working on my Chevy Silverado?

What happens is the emergency brake, if not properly adjusted, wears a groove into the drum and prohibits the rotor from pulling off — you basically need to finesse it off and if that doesn’t work — pound it off. If the guy whacked it with a hammer, etc. to get the rotor off he probably broke the e-brake shoe retainer clip.

What are the brakes on a Chevy Silverado?

Checked rotor temp. after coming home using very light brakes. One rotor-525F-other-675F.The caliper pistons retracted as caliper pistons usually do.I replaced the calipers with “Cardo” rebuilts. 80,000 later, still O/K. P.S. 120,000 and still original untouched rear brakes. I just replaced my rear rotors and pads as well.

Is it safe to drive a GMC Sierra?

The dealer and now GM say that this is a normal function for this vehicle , but now the brake pedal goes to the floor and although they are telling me it is safe to drive I am refusing . This truck sits in my garage . I found over 100 similar complaints on the NHTSA web site , some involving accidents with injuries and deaths .

Why is my brake fluid cloudy in my GMC Sierra?

Even though your brakes are in a closed system, you may experience contaminated brake fluid. Inspect the brake fluid; it should be clear. If it appears cloudy or dark, you may have to replace it. Contaminated brake fluid can be the cause of serious brake malfunctions.

Where is the brake fluid stored in a GMC Sierra?

The brake fluid is stored in the master cylinder, which must be replaced if there’s a leak. Even though your brakes are in a closed system, you may experience contaminated brake fluid. Inspect the brake fluid; it should be clear. If it appears cloudy or dark, you may have to replace it.

The dealer and now GM say that this is a normal function for this vehicle , but now the brake pedal goes to the floor and although they are telling me it is safe to drive I am refusing . This truck sits in my garage . I found over 100 similar complaints on the NHTSA web site , some involving accidents with injuries and deaths .

Why are my brake calipers not releasing properly?

Water and other dust can come into the handbrake wires and cause them to rust. This will cause the brake calipers not to release properly when you release the handbrake. To fix this, you can try to lubricate the handbrake cable and the arm on the caliper and move it backward and forward a hundred times to see if it gets better.

What causes brake fluid to go down in a Chevy?

Even with proper maintenance, you may find yourself with an unexpected brake problem — here are some of the most common examples. Low Brake Fluid: Your Chevy may develop a leak in the system that will result in the fluid level going down.

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Ruth Doyle