Smoking issue

[Stumbaugh]

I have a wierd problem that has occured with my car. It's an 02 gt, has 40k miles on the motor. If I am sitting somewhere just letting the car idle for about 5-10 minutes and rev it up, it will puff out some some the first 2 times I rev it, but then it stops and never smokes again. It doesnt smoke on cold starts, warm starts, or driving down that road. Only when I let it sit and idle for a short period of time. It's not throwing any CEL codes either. Any thoughts?

 

[joshjwc9]

Is there a distinct color to the smoke like bluish which means oil blowby, or solid white which means that there is coolant getting into your cylinders. It also could just be unburnt gases building up from idling if you don't have cats to catch it.

 

[Stumbaugh]

It is hard for me to tell which color it is, but I am going to do it today and have my brother sit in the car and rev it so I can stand behind it and get a good look.

This is the first time I have heard of one doing this before tho.

 

[GDawg]

Maybe your engine needs to be cleaned... Seafoam it.

 

[Maxpowers]

Does it do this every time or only after sitting like over the winter.

 

[trinity_gt]

This can be a sign of valve seals or guides. At idle there's a high vacuum in the intake ports that can draw oil down through the seal or guides if they're suboptimal.