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09-09-2012
Hey guys. I got a 2001 Grand Prix GT with a top swap, vs cam, headers, intake etc. Whenever I put the car in reverse, and touch the brake, the car shudders hard and feels like something is banging. It's hard to explain, but I have no idea where to start. It doesn't do it in drive or when reversing without touching the brake. Any ideas?
09-09-2012
Overreacting ABS self check?
09-09-2012
Hmmm. What would cause that?
09-18-2012
Anyone?
09-26-2012
Bump.
09-26-2012
Might. May also be something whacking the dp.
02-07-2013
This issue went away for a bit and it came back. I am getting a loud scraping and grinding coming from the front end when I apply the brakes in reverse. It sounds like the wheels and it shakes the whole car. I'm thinking it's something with the ABS, but I've never worked on the system before so I'm kinda unsure where to start. Please help!
02-07-2013
you dont have SD headers do you...might be the o2 sensor smacking the fire wall.
02-08-2013
Inspect your brakes?
02-09-2013
Do this.Originally Posted by SlowNA06
02-08-2013
I do have SD headers but this is definetely not the O2 sensor. I have had that vibration before. This is a grinding/scraping during braking when the wheels are moving. I'll have to look at my brakes when I get time.
02-08-2013
Mine would make alot of noise when I would go in reverse. So I pulled the front wheels off and there was no pad left and the drilled and slotted rotors were destroyed (most damage was on the inside so I probably have bad calipers too). So give the brakes a check.
Originally Posted by BoostenGTP
02-10-2013
Yes definitely inspect the brakes, I think I've heard somewhere that if one of the sliding pins on the caliper have fallen out or is loose, depending on which one it is, it can cause strange braking in either forward or reverse.
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