@mdub: ive had this code for a while now and hasnt really caused any noticable issues with the truck would it be typical for it to all of a sudden cause this problem? today when driving i turned it on and floored it it shifted at a higher rpm and stayed until i turned it off. when coasting however it didnt do anything, i expected the rpms to jump like in my dads v10 excursion, but it did hold a high rpm when i put my foot down and let go.

@therobenator: i forgot to mention i replaced all the intercooler boots with BD diesel ones less than 2 mo ago just for the hell of it

@bobfbigman: no i havent done that. but i will tomorrow as soon as i get off work and get home. ill let you know the out come

thanks guys all this input is great. i really dont wanna take it to the dealership for a diagnostics

 

If it was an air leak issue it would do it ALL of the time, not just some of the times. He said it runs fine for a while but as it warms up it starts acting up.

I suppose this couldn't hurt...


You still haven't tried reading the codes at an auto parts store? Why not try that first, it's free. As for the code causing issues now and not before... anything is possible man. This isn't a typical issue, so nothing about it will be "typical."

I'm not sure I follow your last description there. You floor it and the RPM's stay high? When your costing it didn't do anything? What do you mean?

 

When I floor it after pushing in the o/d button it shifts at higher rpms the rpms will stay high until press the o/d button again then it will shift. If I'm coasting or just driving normal and press the button nothing will initially happen till the rpms get higher. What I expected to happen when coasting and pressing the button is the rpms to go from 2k to ~4k basically down shift instantly. I don't know how a diesel is supposed to react with o/d so I can't say if it's right or wrong

 

No what you're describing is normal, I got you now. When you push the button to activate tow haul, it uses the same gears, but it will hold them longer before shifting and also hold them longer before downshifting. It will also keep the converter locked up longer. When you're just crusing down the road and push the button, you probably wont notice an immediate change, until you get on the throttle or something.

It's not an O/D light though like a Ford gas job with the same button, it's just our "tow/haul" mode. You still use all the same gears. It doesn't lock out O/D or anything. Every gear is still available like normal, just changes shift points and torque converter action.

 

Lol I feel retarded now

 

Well we still need to figure out these other issues right? It sounds like your tow/haul button is working fine. However you still have that trans selector code...

Definitely try and get the ABS codes read.

 

Well I dropped it off at the dealership I'm got over messing with it I'll let you all know what the outcome is as soon as they call me with my wallet good luck haha

 

Oh man, sorry to hear that. Let us know what it ends up being, if they can even figure it out haha

 

I have a P0401 code for the egr that's leaking and the service advisor was telling me that's the prob when I know it's not... Hopefully the tech doesn't give me the same feedback or I'll be piss3d

 

Exactly why I got so frustrated bringing it to Ford for work... what good is a warranty on the thing if you don't know how to fix it anyways? Jerks.