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Discussion Starter #1
Hey everyone, first time poster, so heres some background, and then the questions on my issues:

Bought a 2006 Cobalt LS Sedan from my brother for $500. It would not start to save his life, so he was going to sell it to a mechanic for $500. I bought it, and began this journey of resolving some issues.

A friend of mine diagnosed and repaired the starting problem. It was a broken tensioner/timing chain slip. It had jumped 2 spots, but fortunately did no damage. Replaced those two things, along with the starter.(He wore the starter out trying to get it to work.) Also replaced spark plugs, tie rods and all new rear brake system-Drums, brakes, etc.

Power steering went out, fortunately that was replaced under recall. Fuel pump was leaking gas, fortunately once again replaced under recall.


So far I have paid a total of $1600 for the car and all of these replacements. IMO I think thats a good deal so far. I couldnt even get an 06 Cobalt for that much, let alone with all of these things replaced on it so far. I know I have some more things to replace to be totally fixed up(Front tires, alignment, exhaust flange repair.)

Here are the two issues I am having now(And knew this going in). Any help would be appreciated.

1. Car shakes violently when I am applying the brakes. I had brand new rear brakes kit put on a few weeks ago, did not fix this issue(But was needed due to griding.) There is some play in my steering wheel, along with it wanting to drift when driving. Would a bad alignment cause such a violent shake when braking?

2. This one is tricky. When I first towed the car to the mechanic, once we got it there we parked it. We got it fixed and starting and running, but then it would not come out of park. No matter what it was stuck. To get it moved(and out of the way) the mechanic bypassed the wires that connects the brake to the gear shift. So it moved into reverse/neutral/drive just fine, but now the rear brake lights and windshield wipers do not work. My question is, what could have caused it to stay locked in park like that to begin with? I will eventually have to return the wires so the brakes and wipers work, but dont know if this is a faulty body control module, or maybe a short somewhere?

Anywho, my two questions. Probably not the easiest ones to pose, but any feedback would be appreciated.
 

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Gawd of Thunda!
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Hey everyone, first time poster, so heres some background, and then the questions on my issues:

Bought a 2006 Cobalt LS Sedan from my brother for $500. It would not start to save his life, so he was going to sell it to a mechanic for $500. I bought it, and began this journey of resolving some issues.

A friend of mine diagnosed and repaired the starting problem. It was a broken tensioner/timing chain slip. It had jumped 2 spots, but fortunately did no damage. Replaced those two things, along with the starter.(He wore the starter out trying to get it to work.) Also replaced spark plugs, tie rods and all new rear brake system-Drums, brakes, etc.

Power steering went out, fortunately that was replaced under recall. Fuel pump was leaking gas, fortunately once again replaced under recall.


So far I have paid a total of $1600 for the car and all of these replacements. IMO I think thats a good deal so far. I couldnt even get an 06 Cobalt for that much, let alone with all of these things replaced on it so far. I know I have some more things to replace to be totally fixed up(Front tires, alignment, exhaust flange repair.)

Here are the two issues I am having now(And knew this going in). Any help would be appreciated.

1. Car shakes violently when I am applying the brakes. I had brand new rear brakes kit put on a few weeks ago, did not fix this issue(But was needed due to griding.) There is some play in my steering wheel, along with it wanting to drift when driving. Would a bad alignment cause such a violent shake when braking?

2. This one is tricky. When I first towed the car to the mechanic, once we got it there we parked it. We got it fixed and starting and running, but then it would not come out of park. No matter what it was stuck. To get it moved(and out of the way) the mechanic bypassed the wires that connects the brake to the gear shift. So it moved into reverse/neutral/drive just fine, but now the rear brake lights and windshield wipers do not work. My question is, what could have caused it to stay locked in park like that to begin with? I will eventually have to return the wires so the brakes and wipers work, but dont know if this is a faulty body control module, or maybe a short somewhere?

Anywho, my two questions. Probably not the easiest ones to pose, but any feedback would be appreciated.
number one souds like an alignment issue, especially if it is drifting. as for number two I can't really tell, but I know someone here will be able to answer
 

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#1 You need front rotors and a caliper service.
#2 If you press the brake pedal and you don't hear the shifter solenoid chances are your brake switch on the pedal is bad or disconnected. Wipers is probably a burnt fuse or the ground under the coolant reservoir that's corroded to hell.

---------- Post added at 03:57 PM ---------- Previous post was at 03:56 PM ----------

 

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welcome!! sucks to hear about your problems but we can definitely help you out here!
 

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Discussion Starter #5
Thanks for the help so far. When I get the alignment done I will have them check the rotors. Also I need to get it inspected to get titled/licensed so Ill have them check everything else that could cause vibration issues. Hopefully the alignment solves it.

As for #2, when I stepped on the brake, you could hear the solenoid engaging, but it still wouldnt come out of park. And I believe the wipers worked until my mechanic friend switched the wiring so that way the park would disengage. I will ask him what exactly he did to get the gear to move, which caused the brake lights and wipers to stop working. Maybe that will help some in the diagnosis.

---------- Post added at 12:05 PM ---------- Previous post was at 11:49 AM ----------

Oh, also lately the "Service Airbag Light" has come on. Is that a known issue? What could cause it to do that?
 

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For #1 as Coby stated, you will want to get new brake pads and rotors. Apparently, cobalts from GM aren't the only vehicles with this issue, HHR's are having the same issue.

For #2 A proper alignment is needed, may have excessive toe or cross camber.
 

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Chevy Customer Service
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Hi Judobrad

You are welcome to send me your VIN and mileage. I can look to see if there are any updates or recalls on the Cobalt if you would like. Just send me a private message.

Jackie
Chevrolet Customer Care
 

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Discussion Starter #8
Thanks Jackie, I will send that to you later today when I get to my car.

Anyone have any ideas on the Service Airbag Light? What an odd thing to have an issue with.

A few things I have to do with it this week as well. My brother lowered the suspension when he had it and now if I run over an acorn it feels like Ive just hit a 3ft ditch, so I will be putting the the original coils back on. I found a great DIY on that online so Im not expecting a huge issue there. Figured before I bought new tires, fixed alignment and double checked my steering issues, I should probably fix what helped contribute to all of these problems.
 

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Alright I will be looking for your message! I was just looking through the 2006 Cobalt manual and was unable to find out why your Service Airbag light is on. I will update you if I find an answer.

Jackie
Chevrolet Customer Care
 

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If you cleaned and vacuumed under the passenger seat you might have snaged the plug off of the under part of the seat connector for passenger presence.
 

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If you cleaned and vacuumed under the passenger seat you might have snaged the plug off of the under part of the seat connector for passenger presence.
I inspected that earlier this afternoon and didnt see any wires that had been damaged. I will check the fuses this evening when I get home and see if that may be the case. Per my background info about the car I have had a ton of electrical issues.
 

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Only other sensor is the front impact sensor. That's under the hood about middle of radiator support. You could check it for corrosion.
 

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Discussion Starter #13
Only other sensor is the front impact sensor. That's under the hood about middle of radiator support. You could check it for corrosion.
Thank you, I will try that this evening.
 

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Discussion Starter #14
Well I guess earlier when I was messing with the seat I must've moved something right because now the light has turned off and I'm not getting any more airbag service lights. No complaints here lol.
 

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Glad I could help. But maybe for keep safe you should disconnect that plug and reconnect just to clean the contact surface of the pins if it's that finicky.
 

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Discussion Starter #16 (Edited)
So I asked my mechanic friend who was working on my "stuck in park issue." He said he had to get the car to get out of park and be able to drive(Thus now my brake lights and wiper does not work-Heck the wipers may not have worked prior, I just know they dont work now.) he had to wire directly to the brake switch, bypassing the body control module. So my assumptions then are perhaps the BCM is bad, and that is why my wipers do not work and the car would not leave park, thus having to be bypassed. Any thoughts?
 

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Wipers aren't controled by BCM.

---------- Post added at 11:52 AM ---------- Previous post was at 11:39 AM ----------

I think you should switch mechanics, no offence but he's suppose to repair not bypass problems. My guess "P2" of the "BCM" has a bit of corrosion on the pins. Disconnect the battery, disconnect "P2" and reconnect a few times to get a better contact. But first you will need your grease monkey to put it back the way it was.
 

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Discussion Starter #18 (Edited)
Hmm, well, thats good to know. I would've been trying to resolve that issue with no results.
Well that gives me a whole new problem then, lol. Wonder why my wipers are not working. If I press the washer fluid button it will spray fluid, but the wipers wont turn on. Anything I can check on that to determine the cause of problem?

According to some guys discussing here, the wipers are controlled through the BCM:
http://www.*************/forums/problems-service-maintenance-69/wipers-not-working-240650/

But I will still check fuses, relays,etc before diving straight into the BCM, although in the end I think I am going to have to replace it to get the car to go into gear with standard brake light wiring.

Well the link is blanked out but a chevy certified tech said it was. Good info on that link that I will try out. Ill post my results when/if I figure it out.
 

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Hmm, well, thats good to know. I would've been trying to resolve that issue with no results.
Well that gives me a whole new problem then, lol. Wonder why my wipers are not working. If I press the washer fluid button it will spray fluid, but the wipers wont turn on. Anything I can check on that to determine the cause of problem?

According to some guys discussing here, the wipers are controlled through the BCM:
http://www.*************/forums/problems-service-maintenance-69/wipers-not-working-240650/

But I will still check fuses, relays,etc before diving straight into the BCM, although in the end I think I am going to have to replace it to get the car to go into gear with standard brake light wiring.

Well the link is blanked out but a chevy certified tech said it was. Good info on that link that I will try out. Ill post my results when/if I figure it out.
my wipers don't work either.
Just went out one day.
 

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According to some guys discussing here, the wipers are controlled through the BCM:
The only pertinent thing is that the wiper fuse is on the "BCM" fuse block but the "BCM" doesn't control the wipers. All it does is supply the wiper/washer switch with accessory power.

 
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