Brake Issue
Thread Starter
Safety Car
Joined: Aug 2000
Posts: 3,734
Likes: 2
From: Southeastern PA
Brake Issue
I washed my car the other night, including the wheels, and parked the car in the garage as usual. I went to back out today and the car wouldn't budge. I had this issue before on my C7 and my C6 when the rotors rust. The car was not driven before I washed it. The brakes were cool.
I had to actually to a burnout in reverse after trying to rock the car back and forth to free the brakes. The car hunched down and the rear wheels spun, pulling the fronts.
I took the car out for a drive and noticed considerable brake noise, which I associate with the rust wearing off. I had a brake pedal pulse too.
I've driven the car a bit more and done some higher speed braking to clean the rotors. The pedal pulse is pronounced and not dissipating.
What could be my issue? I just returned from a 7500 mile round trip of the U.S. and the brakes were flawless.
Thanks in advance.
Matt
I had to actually to a burnout in reverse after trying to rock the car back and forth to free the brakes. The car hunched down and the rear wheels spun, pulling the fronts.
I took the car out for a drive and noticed considerable brake noise, which I associate with the rust wearing off. I had a brake pedal pulse too.
I've driven the car a bit more and done some higher speed braking to clean the rotors. The pedal pulse is pronounced and not dissipating.
What could be my issue? I just returned from a 7500 mile round trip of the U.S. and the brakes were flawless.
Thanks in advance.
Matt
Pro
Joined: Jan 2014
Posts: 566
Likes: 163
From: Earleton Fl
I washed my car the other night, including the wheels, and parked the car in the garage as usual. I went to back out today and the car wouldn't budge. I had this issue before on my C7 and my C6 when the rotors rust. The car was not driven before I washed it. The brakes were cool.
I had to actually to a burnout in reverse after trying to rock the car back and forth to free the brakes. The car hunched down and the rear wheels spun, pulling the fronts.
I took the car out for a drive and noticed considerable brake noise, which I associate with the rust wearing off. I had a brake pedal pulse too.
I've driven the car a bit more and done some higher speed braking to clean the rotors. The pedal pulse is pronounced and not dissipating.
What could be my issue? I just returned from a 7500 mile round trip of the U.S. and the brakes were flawless.
Thanks in advance.
Matt
I had to actually to a burnout in reverse after trying to rock the car back and forth to free the brakes. The car hunched down and the rear wheels spun, pulling the fronts.
I took the car out for a drive and noticed considerable brake noise, which I associate with the rust wearing off. I had a brake pedal pulse too.
I've driven the car a bit more and done some higher speed braking to clean the rotors. The pedal pulse is pronounced and not dissipating.
What could be my issue? I just returned from a 7500 mile round trip of the U.S. and the brakes were flawless.
Thanks in advance.
Matt
Good luck-George
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,937
Likes: 12,350
From: NE South Carolina
I washed my car the other night, including the wheels, and parked the car in the garage as usual. I went to back out today and the car wouldn't budge. I had this issue before on my C7 and my C6 when the rotors rust. The car was not driven before I washed it. The brakes were cool.
I had to actually to a burnout in reverse after trying to rock the car back and forth to free the brakes. The car hunched down and the rear wheels spun, pulling the fronts.
I took the car out for a drive and noticed considerable brake noise, which I associate with the rust wearing off. I had a brake pedal pulse too.
I've driven the car a bit more and done some higher speed braking to clean the rotors. The pedal pulse is pronounced and not dissipating.
What could be my issue? I just returned from a 7500 mile round trip of the U.S. and the brakes were flawless.
Thanks in advance.
Matt
I had to actually to a burnout in reverse after trying to rock the car back and forth to free the brakes. The car hunched down and the rear wheels spun, pulling the fronts.
I took the car out for a drive and noticed considerable brake noise, which I associate with the rust wearing off. I had a brake pedal pulse too.
I've driven the car a bit more and done some higher speed braking to clean the rotors. The pedal pulse is pronounced and not dissipating.
What could be my issue? I just returned from a 7500 mile round trip of the U.S. and the brakes were flawless.
Thanks in advance.
Matt
Race Director
Joined: Sep 2000
Posts: 11,139
Likes: 1,912
From: Missouri City, TX
Or use a leaf blower to dry the wheels and rotors after a wash job. Also a fast trip forward and backwards in the driveway with hard stops will help too.
Le Mans Master
Joined: Oct 2013
Posts: 7,100
Likes: 541
I have had problems with this before on my C5 but never to the degree you are experiencing. I have a Master Blaster that I use to try to dry the brakes off but I always drive back and forth with the brakes on prior to letting it sit now.
Hope you get this sorted out. Frustrating I am sure. Good luck.
Hope you get this sorted out. Frustrating I am sure. Good luck.
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Joined: Jun 2001
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From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Yup, leaf blower and 1 quick trip around the block to be good and dry and without rust.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,937
Likes: 12,350
From: NE South Carolina
Would try bedding the brake pads and see it resolves the issue. Need about 5 or 6 consecutive hard stops from 60 mph to ~10 mph, don't stop and repeat. Then let them cool off by driving without stopping for ~10 minutes. Does require a place with little traffic to do but I had to do twice to stop squealing, which it did. Bedding procedure for my CarboTech 1521's was similar and just followed the manufacturers recommendations.
Racer
Joined: Jun 2005
Posts: 373
Likes: 3
They have a problem with some rotors being inferior metal and warping easily. I constantly had a from left rotor warp. They re calibrated the electronic brakes, replaced back rotors ( WTF?), and surfaced rotors while on the car. 5-6 visits and they replaced front rotors. Looks like it worked.