Last post on Jul 30, 2013 at 1:31 PM
You are in the Pontiac Grand Prix
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Pontiac Grand Prix, Brakes, Sedan
#41 of 88 Gran Prix brakes
Mar 31, 2007 (12:13 pm)
I have a 1992 Grand Prix with 4 wheel disk brakes I purchased new. It has the SE & LE package + a special package that gave it different suspension (lowered), body trim, wide 150 mph tires, special engine & drive train components.
The brakes have been bad since I purchased the vehicle.
I noticed this after taking delivery and returned to the Pontiac service with my problem. I was told there was nothing wrong with the brakes.
I again returned and complained the brakes do not stop the car in an emergency stop but are adequate when normal stops are required.
I explained, I have more stopping power at a medium pedal, than when I step hard on the brakes. It's as if I'm easing off and using less pressure for a more gentle stop when I apply them hard.
This time they replaced the brake pads, I believe this was at around 6000-8000 miles. This, however, did not correct the problem.
I then had premium pads & shoes installed elsewhere, this did not correct the problem either.
I again went to the dealer for a repair solution but my car was returned untouched with the explanation I voided the warranty by having the brakes worked on elsewhere.
Now I was on my own!
I replaced the master cylinder for a few hundred dollars, again no improvement.
Another shop said it was the power booster and $600+ later I still had bad brakes.
I then replaced the rotors on all wheels and pads again, no improvement.
I replaced the calipers, no improvement.
Then I had installed race car pads and had vented rotors but still no improvement.
I then suspected the anti-lock brake unit. I wanted to replace it but was told it works as the factory built it.
I suggested a different unit but was told it could not be done due to violation of some law regarding brake mods and I could be sued if I had a wreck because I modified it, plus my insurance company would then have reason to refuse the claim.
This car will run faster than I want to drive it even if I had normal brakes, thus the 150 mph tires it came with, but it won't stop.
I have driven it less than 52,000 miles in 15 years for this reason.
Does anyone have any suggestions? I have spent thousands of dollars with no results.
Thanks for your time.
#42 of 88 Re: Gran Prix brakes [ocjohn]
Apr 03, 2007 (8:32 pm)
They should have a procedure under the Lemon Law. As long as you complained within a year?, the rest doesn't matter. After three tries, they should replace the car too. Look in the onwer's manual, and it lists it there. I'm leaning towards the same thing on my 2006 GXP now. The rotors are getting scored and grooved, after only 8K miles! What speed rating are your tires? There will be a V, Z, W, etc.
#43 of 88 Re: GXP premature brake wear!! [gsmith13027]
Apr 09, 2007 (7:00 am)
I have 23,000 miles on my 2006 GXP and now need front brake pads. Cost $279 plus labor. The dealer has to order them so they will be installed tomorrow, 4/10/07. I never had to replace the brakes on any of my previous 3 GTP's. The technician said they were down to 3 mm. Most of my driving is in stop and go highway driving also!!! At least I have gotten all of my oil changes for free so that sort of makes up for the $279, but I have no idea how much the labor will be. Will know tomorrow. chats1
#44 of 88 Re: 2001 Grand Prix - Unusual sound, ABS light and low trac light [chele5]
Jun 14, 2007 (5:33 pm)
Did you ever find an answer? I have a 2000 GT thats doing the same thing.
#46 of 88 2005 Pontiac Grand Prix braking vibration
Jun 19, 2007 (7:31 pm)
My 2005 grand prix just began vibrating while I'm breaking. It's not everytime...just when I'm slowing down from about 35-45 mph to come to a red light or something like that. My cousin has the same car and hers is doing the same thing. Our tires are new, our brakes and roters appear to be in good shape, so we're stumped. I wondered if anyone out there has had a similar problem.
#47 of 88 Re: abs light comes on [robmoyer]
Jun 21, 2007 (6:02 pm)
Another VERY common problem is the large wire harness on left (drivers side) front. The harness rubs the Air Conditioner Accumulator mounted below the air cleaner box. After it rubs enough, it will start to cause "Ghost" ABS problems as the ABS wire shorts to the accumulator. It WILL not set codes (usually). It WILL actuate the ABS system for VERY short periods of time (milliseconds).
#48 of 88 Grand Prix's Eat rotors and tires!!!!!!
Jun 24, 2007 (4:10 pm)
Hey all, just signed up to post this and hopefully get some feedback. My wifes cars an '03 Grand Prix GT it has 56000km, we put all new brakes on the car at 48000km and new tires at 52000, now a person would think that these parts would last longer thn roughly 50000km, but hey I'm not a GM engineer... Now I get in the car today and the front rotors are crap already, 8000km in less than one year and they are crap again!!! 8000km, no parts can be that poor, unless they were a bad batch. The tires?? goodyear eagle LS from the factory and they had 5mm of tread left at 56000
Talking with my auto parts dealer, he tells we that these cars need to have the rims torqued on or they become unbalanced and warp the rotors as u brake, so I always make sure every time the wheels are off that I torque the nuts to 110, so what gives??? 8000km and the rotors are warped!!!???? give me a break, my in laws have the same car, year and everything and have had the same problems with the brakes and tires.
Does anyone have any suggestions or has this happenned to them, I love this car its great to look at but If I have to replace the brakes yearly its not worth it!! Please let me know back here or you can email me at kcsaphotmail.com thanks
-Kris, Ontario Canada
#49 of 88 Re: Grand Prix's Eat rotors and tires!!!!!! [kcsap]
Aug 04, 2007 (10:14 pm)
Wow, I have a 2001 grand prix and only once have i changed the brake pads. at 94k miles.bought at 34k miles with new pads from dealer. never had bad rotors or a vibe.whats with all these problems? any one have an answer to the vibes and bad brakes?
#50 of 88 PArking Brake Cable Help!
Aug 04, 2007 (10:36 pm)
i am installing a new parking brake cable from the pedal to the rear wheel assemblies. at the conncetor where the main cable connects the left and right wheels is a connector. the old swedge is stuck in the connector, how do i get it out?