Truck will only idle

[ANG012]

I have a 2003 ho auto and the truck is stock. When the trucks sets several hours sometimes when you start the engine it will only idle. When you push down on the gas pedal it does nothing, you get no light and it show no codes. after about one minute it runs fine. The dealer can not fine anything, any body have any ideas.

 

[GaryOwen]

I'd have to say it sounds like the APPS (accelerator pedal position sensor). I have had three fail and once without setting any codes. I now have a Timbo APPS under the back seat!

 

[cerberusiam]

Could be APPS, could be FCA, could be ECU and/or the harness. Given the 03's have a problem with sealing the connectors to the ECU and allowing corrosion to start, I would start there. There is a TSB for this and the dealer should be able to access it.