The truck set outside plugged in with overnight temp. of about 10 deg. Far. Truck started fine, went inside to let truck warm up and came back out about 10 min. later to find the high idle (1000 rpm) but the motor was chugging or surging. I never experienced this before, is this common at high idle or a problem with the injectors?

Thanks Steve

 

Not common with the fast idle.... on mine and my dads 06 its smooth as can be...