Thanks guys. I will contact the Pontiac dealer.To clarify on the sunny days, its not that its sunny but rather my car was in direct sunlight which made the engine hot upon start... Also I don't warm up my car, I just turn it on and drive.... pretty much always... is that a problem?

I have been having trouble with my 2006 Vibe. Automatic transmission. Original owner and 50,000 miles. Generally, it works great. However, on warm, sunny days I experience some problems. When engine gets hot from the sun the car idles at 1000 RPM. Additionally I feel like the car is working really h...

I have an automatic vibe but I am having problems only on sunny warm days. For example, the car will idle at 1000 rpm and if I am driving streets and either stopping or just lifting foot off gas to "coast" the RMPs drop down to 1000 suddenly so it feels like I really am causing a lot of st...