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Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
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  Jim Grant's Tech TipsJim Grant's Tech Tips
Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by ALLDATAdiy.com users over the course of many years.
If you have any questions, please feel free to email us.
 
 

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  Jim Grant's Tech Tips

94 Chevrolet Suburban, Brake Shake
Q: I have a '94 Chevrolet Suburban (C2500) with ABS brakes. When I brake, I get a strong vibration in the front-end that feels like there is something loose in the suspension. The vibration goes away when I release the brake pedal. I also notice that when braking, at very low speed (less than 5 mph) the brakes seem to grab a little every rotation or so of the wheel. I have a relative that has a similar problem with the same model Suburban. Are other people having the same problem? If so, what's been done to correct it?.......Michael S.

A: The symptoms you're describing are that of warped disk brake rotors. When applying the brakes, the uneven surface of the brake rotor will cause the steering to shake and in some cases the brake pedal to pulsate. If a disk brake rotor is warped severely, the unevenness can be felt, and even heard at low speeds. The fix requires re-surfacing or replacing the disc brake rotors.

 
     
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