this only happens when my trucks been in the sun for a couple hours, but when i get in and start it, the truck idles very high and after i give it some gas, it returns to normal. does that have to something with the fuel building up pressure from the heat?

 

Does it do it on very hot days or hot and cool days?

 

just on hot days were the truck has been in the direct sun for at least 3 hours id have to say.

 

Could be tank pressurizing, especially if the tank is a little low.

 

ya cause it only does it if the truck sits for long periods of times in the sun, wont do it in the morning when it's cool out and their is not a lot of sun beating on it, im gonna park it in the shade and see if it does it. ill keep you updated on what it does.

 

Ok.