I think my truck my have been chipped, shifting probs?

[POWERSMOKIN]

So the OBDII connector is just hanging down, not connected to anything. is your guys' OBD ports dangling? or is it attached?
either way im not too worried. but the only thing is sometimes the trany gets this really bad glitch, that it wont shift outta first, then i gotta do it manually to 2nd, then drive, than it locks OD up at like 25 and i can floor it and it kinda smokes
then it kicks down and is fine for some time....

[FENKER]

if ur just driving around town u might want to leave the OD off my dads does that when its in od and going thriugh town, he had it checked out and the tranny guy said nothing is wrong with it

[CR&C]

If you want to know if it has a chip just pull the drivers side kick panel off and look through the E brake assembly. There will be a computer there. The chip would be on the side facing you.

[POWERSMOKIN]

it might have been removed when sold.

[Dirk]

Could have had a OBD II programmer installed. But it just sounds like your e40d may be headed south.

[ridiculously_necessary]

i know my tranny cant find a gear at 36mph. i either have to shut off OD or slow down or speed up. i get the sense around here that this is normal.

for your situation about not getting into 2nd, every time i see that on the forum people end up rebuilding/replacing the tranny.

[POWERSMOKIN]

bah. It was overhauled 40Kmi ago....

[Soaggydogg]

Originally Posted by POWERSMOKIN

bah. It was overhauled 40Kmi ago....

I'll bet money it is in your trans and not the programming/PCM. It might be as simple as the VB piston(s) sticking.

[POWERSMOKIN]

have to take it to a tranny shop to get it checked?

it shifts if i stomp on it, but under light accel, it does it very sporadically.

[joey6.0]

We had a low mile 01 crew cab traded in. They had worked on it in our shop a few times before. The guy traded for the very same thing u are telling us. My manager knows I have a few tricks as well. He told me to fix it... I disconnected the batteries for ten min or so. Then touched the pos to the neg to make sure no residual power left in keep alive memory. Connected it up and drove it like I stole it literally. Problem was the guy that owned it babied it around and never really towed anything the tcm had learned his driving habits. Needless to say after a few hard *** acelerations and boost launches it shifted like new. there was nothing wrong with it but bad habits. We have an 03' 6.0 hooked to a 5th wheel since new. Tow cars with it daily now over 200k and never driven empty. Never done a turbo, injector or anything else to it. these trucks need to be worked...