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Sedans Pontiac Grand Am Pontiac Grand Am Brakes
60 messages, Last post on Jul 18, 2009 at 2:29 PM
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Lately when I start my car in the morning to, I have to press unreasonable hard on the brake pedal to get the brakes to engage. After that they seem to work fine, however the brake pedal still feels a bit "stiff". I've check the brake booster function by turning the car off and pumping the brakes up until the pedal no longer moves. So it seems like the booster is working ok. I also don't think it is an engine vaccum leak, because I don't get any irregular engine shuddering or sudden jump in RPMs when the brake pedal is pushed. Also this problem only seems to happen when it gets chilly (40 degrees) outside (this problem did not occur during the summer). The only thing I can think that it may be is air in the brake lines or a bad brake booster check valve. Does anyone have any suggestions on what might be causing this problem, because I'm taking it in to the dealership tomorrow to have it looked at. |
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I recently have been hearing a sound in the front of my car that sounds like a manual upshifting and downshifting when I accelerate and decelerate, respectively. I don't have a manual car. I was told it might have been the wheel bearing, so I took it to a mechanic and he didn't hear anything when he checked them. Last week, I was rearended from behind about about 5 miles and hour. No damage, but when I was driving home, my ABS light, Trac Off and Service Vehicle Soon (not the Service Engine Soon) lights all came on. They come on now at sporadic intervals after I start up the car ranging from after 25 mins of driving to right when I start the car, but once they go on they remain on until I shut the car off. I took it to Auto Zone and had them hook it up to their computer but there were no codes. They also tested the Charging System. Then I took it to a mechanic and still no codes. Both places tried with the car and and off to test the codes and they couldn't figure out what was wrong. I then took it to the Pontiac dealership and they told my it was most likely my Hub and Bearing Assembly and it would cost $400. (But the mechanic couldn't hear anything wrong with the bearings before.) I tested a theory today (it just snowed) and hit the brakes. The lights weren't on at the moment and I could feel the ABS working. A few seconds later, the lights were on and when I tried them, the ABS didn't work. Can anyone tell me what's wrong? Is it really my hub/bearing assembly or something else. I don't want to pay $400 if it's just wasting my money. Thanks.
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I have had my 2000 GA since new. I have replaced the pads 6 times, the rotors 4 and the calipers once. The calipers are again acting up, only 25K after being replaced, I now have about 71K on the car and it will soon need new front pads and rotors ... again. I like the car but am absolutely fed up with the brakes. Does anyone know if brakes from a larger GM car can be put onto the GA (i.e., the set up on the Grand Prix GXP). I am sure if the brakes were not undersized this problem would not continue to reoccur. Any thoughts would be appreciated.
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Replying to: pwilliamk (Mar 05, 2007 9:37 am) I have an 04 GT now, with 46K miles. Haven't had to do any brake work yet. I just checked the front pads last weekend and they're at about 25% useful life left. Rears are around 80%. If your buying those $25 rotors at the auto parts, be aware that most of those are made in China or South America. They're made fast and cheap, which means that they aren't left in the molds long enough to anneal properly, resulting in fast wear and warping. I've found that good rotors are going to run $40+ each.
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Replying to: burdawg (Mar 05, 2007 7:18 pm) I only put raybestos parts on my car (never tried Brembo), the problem is continual though. I must admit when I put the raybestos rotors on the warping to longer to manifest but in time they still warped. As for the calipers, I lube slider pins each time I rotate the tires. The calipers make an extremely lound creaking noise every time they are applied. With the original set the dealer said there was to much play (this was after they cleaned and lubed them the first two times the problem arose). They agreed to replace the calipers if I paid half, so I did thinking that it would solve the problem. Not even 20K after that the brakes are making the same noise again, although it may even be worse this time. Not sure what to do ... I am at a loss ... an aftermarket overhaul to brembo is nearly $1500 (CDN) for the whole system. Not sure I want to spend that much but it might resolve the problem once and for all |
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My son's car has been having brake issues lately and he took it to the GM dealer and they told him that he needed a new brake booster. His car is an 05 (program car) with 45,000 miles on it. Is this common with other Grand Am's or is this the beginning of other brake problems? They priced the repair  about $700. Any suggestions. Thanks in advance for the assistance.
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| Have a '93 Grand Am 3.3L,puttin on wheel cyl.old one's came out o.k,new one's seem to have too much meat on them to go over the axel housing,do i have to grind some of the forging down to put them in the backing plate? | |
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When i apply my brakes at slow speeds or when i am stoped, i hear a creeking sound. It sounds like a door or a spring creeking. I checked and lubed the caliper pins. Nothings loose on my brakes, i put new pads and rotors on, and still have the noise. It must be in my piston or my brake lines. I can feel it in my pedal, it feels like a slow popping, my brakes work fine. Just would like to get rid of the noise.
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Replying to: krs01grandam (Jun 05, 2007 12:24 pm) |
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Replying to: krs01grandam (Jun 05, 2007 12:24 pm) 
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