Question about 1999 Pontiac Grand Am GT

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98 Pontiac Grand Am GT, several problems...

I have a few odd things that have been happening with my car that have mechanics stumped...so, I was hoping you guys could help me.
1) ABS and ETS light will come on (always together) and stay on sometimes and others they go away when I restart the car of course.
2) My Low Traction light keeps coming on ALL the time even when weather and roads are perfect.
3) Lately when I try stopping (note this happens sparatically) the car brakes grab and release many times before it comes to a complete stop.
4) The ultimate head scratcher has been that sometimes (this is happens once in a while and then goes away for awhile) my car will have a knocking sound, knocks three times always and then stops again. This has happened both when I am driving and when I am stopped

Please HELP ME!!!!

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  • kimmcn03 Feb 25, 2009

    I am having the same problem with my 96 grand am gt. It makes a knocking sound after about 5 miles of driving. It also has teh ebs/abs light that comes on sporatically. It will jolt a little sometimes when I break, did you ever figure out what the problem was??

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  • 13 Answers

Sounds like a faulty speed sensor or a bad tone ring which is probably inside the hub on this model

Posted on Jun 25, 2008

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