I have a 2003 F250 CC 4x4 with the 6.0l diesel. Last night my son was driving it when he was going down a small hill, let off the acc pedal then starting up the other side, push on the acc pedal and the engine rev ed up with nothing happening about going forward. After he got it to a safe location, I tried to put in any gear and it sounds like it wants to go into gear but nothing except for when you rev the engine in drive it tries to move forward. What could be the problem?<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>
There is enough fluid in the transmission. No I have not changed it in 45,000 miles. And never had anything that would indicate some problem developing or anything, just happen on the downhill going 35mph.<o></o>
Any suggestion will be greatly appreciated.<o></o>

 

Have not had that problem with the 250 but HAVE had that exact problem with the daughter in the Taurus...it was insufficient fluid. AND remember to make sure if you add fluid to the 250 to make sure you're adding the correct type.

Dad had to repeat the lesson on checking ALL of the fluid levels. No problems since.

Joe

 

That sounds like a mechanical failure. Something broke. I think it's time to get it to a transmission pro to do a real diagnosis.

 

Last night I had a similar problem with my 2006 F250 SD 4X4 CC. Driving home heard a clunk, transmission wouldn't provide anything. Got to the side of the road, tried putting into four wheel drive, same thing, wouldn't move. Had it towed to the dealership where I just had the transmission flushed a couple weeks ago. Like you, there were no warning signs, no indications at all I was having problems. Waiting to hear from the ford place to see how what they find and how much it's going to cost to fix it. I will post what I find out.