idle

Hello! Disclaimer, not a mechanic. Just trying to get a bit more life from my trusty Cobalt since now is not a great time to be investing in a new car. Basically, whenever I'm coming to a stop the speedometer may jump up to 30-40mph and the RPMs will spike. More often than not the car stalls...

I have a 2006 LS 2.2 Coupe and for the past year my car has stalled on and off when I come to stop lights or stop signs. It happened so inconsistently I didn't really worry about it. When the recent ignition recall happened I thought it could have been that since there were reports of the cars...

Yo! So the other day I cleaned my throttle body in order to clear a TPS code I was throwing (P0121). I took it off the car and cleaned it with TB cleaner. Covered up the connection port while I was spraying. It did clear that code. However, it seems that now my idle is kinda odd. It's been...

I have recorded a YouTube video showing the issue I am having; you can see it here: 2009 Chevrolet Cobalt rough idle/rough exhaust?? Please advise. - YouTube Excuse my lack of knowledge but it seems as though the idle is a bit rough in terms of noise and vibration. The RPMs are not "shaky"...

If I remove my throttle body to clean, is it safe to use carb cleaner? My other question is will it need to be reprogrammed if I take it off and clean it? What precautions should I take while removing it and cleaning it? I hate to mess my car up! I am a broke High school student!

What is the "normal" idle for a 5-speed LS model? With the AC off, when i take it out of gear into neutral it idles anywhere between 1000-1300rpm. But when i stop, it drops it down to 800 rpm and keeps it rock steady. No higher, no lower. But when the AC is on, when i take it out of gear into...

Recently, my 2005 Cobalt LS has been sounding pretty rough while idling. Sounds like shes about to stall out when Im sitting at red lights or at any kind of stop. Any ideas why this is happening?? :confused: Update: Check below for the solution to this problem