I have read some posts about trucks surging but none that really fit what mine did to me tonight. I went to a fast food joint to grab some burgers for me and the wife. Locked my truck up running in the parking lot. When I came back, as I started to open the door I heard my rpm's go up enough to really notice for about 3 seconds. I got in the truck and headed home. I was only maybe 2 miles from home. It did it again at a stop sign on the way. I would guess and only guess it went up to about 1400 rpm for 3 seconds both times. Truck has been running fine and did the rest of the way home too. No codes set off using the on off 3 times method. Truck has about 47k on it. Any ideas???

 

First items I would check is the APPS (throttle position sensor) and the pressure valve in the CP3 injection pump. APPS could be sending an erroneous signal or the pressure valve is sticking.

MikeyB

 

i think there was some issues with the cruise control on the 03's [a tsb or recall too i think?]

 

Sounds like it is wanting to go to high idle for cold temps.