My Cobalt is sick...Stalling
My Cobalt is sick...Stalling
[edit]I have a 2006 ss/sc [/edit]
I really need your guys help. My car has been stalling for some reason and the engine light just came on.
Ever since i first purchased the car new i have been having issues. These issues were not that bad and i thought they were break in ones.
What would happen is, when i was in the process of parking my car or at a stop light, my cars RPM would drop to about 300-400 then jump back up to about 1200 then level out. As time got worse that also got worse until yesterday, my car finally stalled out.
Today a new symptom just came up, and now when i am at a light, my engine is shuttering, but not bogging down or anything just lightly shaking. It felt almost rough like a mustang gt. Then a few minutes later my check engine light came on. Also my performance significantly dropped.
Also, every time i am done driving my car, my exhaust or something in the back is making a weird pinging noise, like if water was dripping and hitting the metal pipes.
Here are the thing i checked.
-I am at 3200 miles:
-the oil is at 77%
-I manually checked the oil.
-no leaks of any kind.
-no smell
-it is not bad gas because it has been doing this for a while.
-And i did not mod my car in any way
Any suggestions?
I really need your guys help. My car has been stalling for some reason and the engine light just came on.
Ever since i first purchased the car new i have been having issues. These issues were not that bad and i thought they were break in ones.
What would happen is, when i was in the process of parking my car or at a stop light, my cars RPM would drop to about 300-400 then jump back up to about 1200 then level out. As time got worse that also got worse until yesterday, my car finally stalled out.
Today a new symptom just came up, and now when i am at a light, my engine is shuttering, but not bogging down or anything just lightly shaking. It felt almost rough like a mustang gt. Then a few minutes later my check engine light came on. Also my performance significantly dropped.
Also, every time i am done driving my car, my exhaust or something in the back is making a weird pinging noise, like if water was dripping and hitting the metal pipes.
Here are the thing i checked.
-I am at 3200 miles:
-the oil is at 77%
-I manually checked the oil.
-no leaks of any kind.
-no smell
-it is not bad gas because it has been doing this for a while.
-And i did not mod my car in any way
Any suggestions?
I believe that there is a ECU reflash that may cure your idle problems. Also, the exhaust "pinging" when you turn the car off is normal... my SS 2.4 did it until I put the magnaflow system on. It's just the stock pipes heating and cooling.
Originally Posted by drslash
What would happen is, when i was in the process of parking my car or at a stop light, my cars RPM would drop to about 300-400 then jump back up to about 1200 then level out. As time got worse that also got worse until yesterday, my car finally stalled out. 
I got it fixed today under warranty. I found out it was a misfire on #3. Supposudly the ac belt or something like that messed up the wire causing a bad connection. Now the car is running like a champ. It runs much smoother.
Thanks guys.
Thanks guys.
Originally Posted by drslash
[edit]I have a 2006 ss/sc [/edit]
What would happen is, when i was in the process of parking my car or at a stop light, my cars RPM would drop to about 300-400 then jump back up to about 1200 then level out. As time got worse that also got worse until yesterday, my car finally stalled out.
What would happen is, when i was in the process of parking my car or at a stop light, my cars RPM would drop to about 300-400 then jump back up to about 1200 then level out. As time got worse that also got worse until yesterday, my car finally stalled out.
Originally Posted by Witt
I know that the stage flash fixes this, but as for the cause, I "think" GM set the idle too low on these cars. Not sure if anyone else would agree, but with the idle too low, your brake booster is pulling vacuum when you're coming to a stop and I think thats what does this. Anyone else?
I"m going to the dealer tomorrow to get my passenger mirror replaced and plan on having them check this out too. They thought it might have been a combo of the AC and brakes at the same time and the enginer struggling to maintain vacuum but after i told them it has happened with, without AC and with adn without the brakes applied they were dumbfounded. More answers sometime tomorrow.
I 'll hafta take mine in too. It has been doing the same thing. I think Witt hit the neail on the head about the idle being too low though.
It hasn't stalled yet, but I intervened the other day cus I thought it was going to.
It hasn't stalled yet, but I intervened the other day cus I thought it was going to.
My cars stalled several times, but mines an auto 2.2L, its usually after sitting in traffic and then having to make a hard turn like a U turn or an offramp. I've made a bunch of post but no real answers yet.
^^Our (LSJ) problem is apparently fixed with a reflash, so I don't know if yours could be similar or not.
Obviously our cars have totally different PCM's, but my 03 cavalier had a similar TSB on it for idle issues, so it can't hurt to have your dealer take a peak
Obviously our cars have totally different PCM's, but my 03 cavalier had a similar TSB on it for idle issues, so it can't hurt to have your dealer take a peak
Originally Posted by Stealth06LT
My cars stalled several times, but mines an auto 2.2L, its usually after sitting in traffic and then having to make a hard turn like a U turn or an offramp. I've made a bunch of post but no real answers yet.
Dude your automatic should not be stalling. I would take it in.
Originally Posted by drslash
Dude your automatic should not be stalling. I would take it in.
yea I know I did but the dumb asses test drove my car, wasted all my gas and said they didnt find anything. bastards left my tank on empty and told me if it happens again to call. Its happened 3 times.
This is weird because mine just died this morning for the first time. It has been doing the idel drop/climb/then ok thing since I bought it. But when it died this morning I decided I'm taking it in. I'm just glad it isn't only me having the issue.
Originally Posted by Witt
I know that the stage flash fixes this, but as for the cause, I "think" GM set the idle too low on these cars. Not sure if anyone else would agree, but with the idle too low, your brake booster is pulling vacuum when you're coming to a stop and I think thats what does this. Anyone else?
Well just got back and take a gander at what the reflash did? Upped the RPMs at idle to 900!
That takes care of that. I got to chatting with the head guy of the service department at my dealership. He was saying it sounded like i'd been on the internet. I told him yeah i was and its been a good place to find out where things might go wrong with the SS/SC. He was curious to know what I had found so I listed off the wheel hop, axles problems, idling issues and he threw in gas pump failure as another one that seems to be popping up now.
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