06 Cobalt Stalling

[ClearHooter]

Our 06 Cobalt at around 80,000 miles started stalling from transition from stop to acceleration from stop. No spitting or sputtering just dies. This is really bad when crossing an intersection with on coming traffic.

Will a computer check show this up as a code?
Anyone had this trouble?
If so how'd you fix it?
Are there any recalls on this dangerous problem?
Is there any site an owner can go to that will inform them of recalls?

[tomj76]

It's possible there are codes. If the check engine light is on, then there are definately codes. Some autoparts dealers such as Autozone and Advance Auto Parts will read codes as free service.

Sometimes autoparts stores will not read the codes if the CEL is not on. One way around this is to temporarily remove a spark plug connection, then run the engine to force the check engine light. After the light comes on (which will occur within a minute or two of operation), replace the wire and get the codes read. In this circuimstance there will always be a code for the misfire (P030x), but any other codes will usually indicate where to start looking for the problem.

I've not had this problem with my Cobalt, but it sounds as though your engine is not getting the right fuel/air mixture in these moments. When you start up studdenly, the sudden rush of air into the engine needs to be accompanied by the right amout of fuel to prevent stalling. You may find that the air isn't being metered correctly, but it could also be an issue with the fuel delivery (i.e. fuel pressure or fuel filter issues).

There are sites (for pay) that will list the TSBs. You can also contact your Chevrolet dealer for information on TBS and recalls.

[tomj76]

I spoke to a guy recently who described a similar problem on a different vehicle. He resolved it with new spark plugs.

[ClearHooter]

After replacing the plugs I still had the same issues. A friend too suggested a fuel metering anomaly. He suggested the butterfly had carbon / grung build up and was not allowing the proper closure. After spraying the butterfly and throat with a cleaner ehat was "throttlebody safe" there has been no hunting nor stalling. Hope this may help someone with a similar problem.