2005 f250 v8 problems

[03f250stroke]

hey whats up guys? I got a question and hopefully you guys can help. My dads truck is a 05 f250 with the v8 gas in it. This is the problem that he is having. The truck will run perfect its got like 20k on it. Then all of a sudden it will just not rev or accelerate. Its weird though because it has only happened a few times. Just tonight he was driving it and it was in 2nd gear and then just went to like neutral and then stalled. It started right back up and he just had to drive it like 10 feet into the driveway without having the pedal react (rev up, or accelerate). It wont throw any codes or anything. The truck runs like new. he never beats on it. its totally stock. Im guessing its got something to do with the electrical somewhere. But since it wont throw a code its almost like shooting in the dark. My 04 v10 never did that nor has my 03 6.0. So Im at a lost. If anyone could please help that would be great. Thanks alot

-Evan

[forddieseltweek]

Take it to the dealer,

[2005F250]

Dealer it. It should still have a warranty. Get your use out of it.

[03f250stroke]

I know we were thinking about that..but the dealer by me is such a joker..for example I was in there for a reflash and I got a trip to the body shop for them slidding my truck down the side of a lowboy..I said that to my dad but he said why so it looks like your truck did..WOW lol..Anyways..Its not happening everyday to bring it there IMO but i thought the same thing, I just know how they are and how they will be like try to steer us into something else..I want to find out from someone that it has happened to them so at least we go there or somewhere else with a better idea so we can look like we know what were talking. But thank you Tweek..BTW I like your rig alot..I bet you surprise ALOT of people with it. man I love power strokes lol

-Evan

[JohnO]

Jack up the radiator cap and drive a powerstroke under it. That'll fix the problem.

[masami]

If this were a Powerstroke, I'd say you are dealing with a bad IVS (idle validation switch) adjustment on the accellerator pedal assemby. It is not resetting to allow the PCM to see the throttle position sensor when it is off of idle. The dealer may want to sell you a whole pedal assembly but it can be adjusted out if it is like a PSD throttle. The cure is to make sure the part of the linkage tab that depresses the IVS is really depressing it enough to hear a clicking sound (the switch operating) when the pedal goes to idle and comes off of idle. No click, no reset for the PCM. No throttle action. The linkage tab has to be bent enough to get the click out of the switch. (Or the quick and dirty of just building the tab up with electric tape.) This is the cure for the throttle going dead (staying at idle) for a PSD.