Issue with brake system - need help diagnosing
Thread Starter
Heel & Toe
Joined: Nov 2017
Posts: 20
Likes: 3
From: Cleveland, OH
Issue with brake system - need help diagnosing
I took my '07 Z06 out of storage and noticed an issue when braking. There's a pounding feeling when I apply the brakes. The frequency of the pounding does not correspond to wheel speed. It seems to be the same frequency regardless of speed, but the intensity is greater with higher speeds. The strange thing is I don't feel anything in the pedal and the car brakes fine (no diving left of right). I checked the rotors and I don't see any rust from sitting. Also, I didn't throw any codes, but I only drove it a couple miles. It drove fine when I put it in storage last year.
Any help is appreciated.
Jim
Any help is appreciated.
Jim
Drifting
Joined: Sep 2000
Posts: 1,596
Likes: 426
From: Fulshear TX
Did you notice a message on the D.I.C. that the ABS or traction control system was actuating while you were feeling the pounding? Did you try switching the Traction Control/ABS off using the button on your console? What was the result? Maybe you have a bad wheel speed sensor.
Thread Starter
Heel & Toe
Joined: Nov 2017
Posts: 20
Likes: 3
From: Cleveland, OH
Thanks for the response.
There is no D.I.C. message. I just drove the car with the Traction Control and Active Handling off and it's still doing it.
I was considering buying a bidirectional scanner to check wheel speed sensors and ABS actuation.
There is no D.I.C. message. I just drove the car with the Traction Control and Active Handling off and it's still doing it.
I was considering buying a bidirectional scanner to check wheel speed sensors and ABS actuation.
Drifting
Joined: Sep 2000
Posts: 1,596
Likes: 426
From: Fulshear TX
I have had pretty good luck using a Topdon Phoenix Lite 3 scanner, which gives a pretty good look at all of the computers including the BCM on our cars. That being said, even it will not perform all of the functions of a Tech2. As an example, I replaced by Brake Pedal Position Sensor, which requires a calibration once installed. Although the Topdon Phoenix said it could do this, it would not do it, so I had to find a Tech2 to take care of recalibration.
Thread Starter
Heel & Toe
Joined: Nov 2017
Posts: 20
Likes: 3
From: Cleveland, OH
Thanks for the info!
Yesterday I ordered a Foxwell NT726. According to their tech. support it should do everything I need it to do for the Z06 ABS and a few other cars I have. Hopefully, they’re right.
Yesterday I ordered a Foxwell NT726. According to their tech. support it should do everything I need it to do for the Z06 ABS and a few other cars I have. Hopefully, they’re right.
