Hello,new at this,anyway just noticed after driving 300 miles stoped and let the truck idle for about 20 minutes.During that time the idle was going to high idle as if I had just started it on a cold morning then it goes back down if u hit the brake or acc pedal.Is this common,never noticed it before or could it be a problem.

 

We need to know what engine, year make model etc.

 

Sorry,2001 F-350 Crew cab,7.3 with 120,000.

 

Sorry not my line. But ya get more from tke 7.2 forum.