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Chevrolet Cobalt Brake Problems

24 messages,  Last post on Nov 18, 2009 at 1:44 PM

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What is this discussion about? Chevrolet Cobalt, Brakes, Coupe, Sedan

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#1 of 24 07 Cobalt Brake Problem by bsmith7 Nov 26, 2006 (3:19 pm)
When first starting the car the brake pedal goes 3/4 to the floor the first push. Then it is fine. (about 2/3 travel. Then after a few miles the pedal travel starts to shrink. Goes to 1/2 then to a 1/4 till finally it's right at the top and touchy as hell. (not even enough travel to have the brake lights come on) The car actually won't roll. If you turn it off and wait 10 minutes....start the car and the cycle starts again.   It actually started to lock up on the expressway and I had to pull over and wait till it unlocked.   Now this happens 50% of the time. Chevy drives it and it does not happen. They don't drive it long enough. To me in my limited dealings with anti lock and such it sure sounds like a master.   Car has 2000 mi on it.   We are dropping it off Monday to try again.....   Ideas??? Replies to this message: bsmith7 (Nov 27, 2006 5:02 am) ray_h1 (Nov 27, 2006 9:02 am) ngillum (Nov 02, 2009 11:36 am)
#2 of 24 Re: 07 Cobalt Brake Problem [bsmith7] by bsmith7 Nov 27, 2006 (5:02 am)
Replying to: bsmith7 (Nov 26, 2006 3:19 pm) No one??
#3 of 24 Re: 07 Cobalt Brake Problem [bsmith7] by ray_h1 Nov 27, 2006 (9:02 am)
Replying to: bsmith7 (Nov 26, 2006 3:19 pm) The accumulator circuit? I presume you've already checked the fluid level in the master cylinder reservoir. (Whenever I can't get the dealership off its fat duff, I go to another dealership. They're not all created equal.)
#4 of 24 Brake problems anyone? by nixonjn Jan 30, 2007 (5:54 pm)
Just wondering if anyone has had problems with the brakes pulling when doing a hard stop.   I bought a base model 2007 Cobalt LS and had to do my first hard stop after 6500miles. A Corvette spun out in front of me on the interstate (why I don't know, it was dry...) and I hit the brakes really hard to try to stop. The car pulled left and I hit the wall (missed the corvette...). I do not have ABS. The road curved to the left so I was thinking that if the brakes just locked up it should've travelled to the right side of the road, not further left.   Has anyone else experienced pulling of any kind? Obviously this was a hard pull. Does anyone know if there would be a ny physical evidence of the pull or am I stuck taking the wrap for this one?? Replies to this message: times2 (Jan 31, 2007 7:26 am)
#5 of 24 Re: Brake problems anyone? [nixonjn] by times2 Jan 31, 2007 (7:26 am)
Replying to: nixonjn (Jan 30, 2007 5:54 pm) I did have to brake hard once, and did not have that problem (2006 LS Sedan). But if your tire pressure was uneven, pushing the weight down on the front end during a hard stop would make the car turn to the side with the softer tire. You might want to check that.
#6 of 24 breaks little or no response by kernoghan Nov 30, 2007 (2:02 am)
I just rented a new 2007 cobalt with 13000 miles and was going 50 kil an hour when a car cut me off i jammed on the breaks and nothing no skidding a quarter of a second very light squeel (tires) and 4 seconds or 100 freet later i smaked the back of three cars jammed together in the passing lane with on traffic or turn lane or x walk for miles.. duuuuu anyone else had breaks not work I pushed mine to the floor AND BROKE MY TOE
#7 of 24 breaks little or no response by kernoghan Nov 30, 2007 (2:04 am)
I just rented a new 2007 cobalt with 13000 miles and was going 50 kil an hour when a car cut me off i jammed on the breaks and nothing no skidding a quarter of a second very light squeel (tires) and 4 seconds or 100 freet later i smaked the back of three cars jammed together in the passing lane with NOtraffic or turn lane or x walk for miles.. duuuuu anyone else had breaks not work I pushed mine to the floor AND BROKE MY TOE Replies to this message: cmhj2000 (Nov 30, 2007 7:14 am)
#8 of 24 Re: breaks little or no response [kernoghan] by cmhj2000 Nov 30, 2007 (7:14 am)
Replying to: kernoghan (Nov 30, 2007 2:04 am) Sorry to hear about your toe.   Don't know of any issues like you described. GEZ
#9 of 24 Cobalt Brake Lockup Danger by rnarma Apr 25, 2008 (7:52 am)
I just spent a week with a Base Cobalt rented from Hertz. Long ago I learned to do a brief test of a cars' braking and handling BEFORE going on a long trip. I was taught these skills during various SCCA Autocross and Road Racing schools. My rented Cobalt had 8000 miles on the clock and was NOT equipped with ABS. If I had it to do over, I would not rent this model vehicle again unless equipped with ABS. The front/rear braking balance resulted in very early lockup of the rear wheels which resulted in loss of directional control when even braking hard in a turn. The overall braking was poor as a result. I notified Hertz of the problem in my post rental survey. This was not a problem in normal driving but could present a danger to an inexperienced driver in a panic stop situation. I have rated the non-ABS Cobalt as an unacceptable choice for friends and family. This is a shame as I am a very happy C6 Corvette owner and was otherwise pleased with the Cobalts ride, mileage and handling. Replies to this message: okko1 (Apr 25, 2008 2:47 pm) poncho167 (Apr 26, 2008 5:40 am) maryw3 (Apr 30, 2008 5:44 am) poncho167 (May 03, 2008 6:26 pm)
#10 of 24 Re: Cobalt Brake Lockup Danger [rnarma] by okko1 Apr 25, 2008 (2:47 pm)
Replying to: rnarma (Apr 25, 2008 7:52 am) yeah right like i believe that.

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