New to the forum here but have been searching around alot on this conversion. I have "completed" my conversion and did it in just a couple days. Been driving it for a few days now. As with most projects like this there are some minor bugs to work out. I purchased a wrecked 99 f250 to do the conversion. I thought it should be pretty straight forward having a complete truck to do it with.
I had the electronic shift 4x4
and decided to use the manual transfer case from the donor truck since it was already mated and assumed good and i thought it would be more reliable in the long run. With that I have found that the case is cracked and leaking oil on the front side. I am about to pull it back out and try to assess the damage and decide it JB weld might be an option or actually welding it or I am considering splitting it stealing the input shaft and making my ESOF
work instead. What are your thoughts. I had heard i need to cross a couple extra wires in order to make it go into low range with that setup. Currently i am using the original under hood harness with the manual transfer case harness and have a pair of wires on the transmission connector crossed over to allow it to start.
I attempted to use the donor truck computer but it gives me a check engine light but shows no codes when read. The cruise didnt work which i suspected might be the case because the donor did not have cuise. I am confused about the check engine light and it must be wiring related. the truck was very sluggish and could hardly pull hills empty in 5th gear. The previous owner of the donor truck had a chip on it and removed it, is it possible he damaged it in a way that it just detuned it?
I then tried borrowing my buddies computer from a 2001 xlt that was a manual computer. It did all the same stuff but did feel more powerful. So it had a check engine light with no codes and the cruise still did not work despite his truck having cruise
I then installed my auto computer. it works pretty well aside from a stutter under low load. I had seen another member ask about this and the responses he got were about the computer trying to shift and he should use a manual computer. The truck has lots better power, the cruise works and there is no check engine light.
It seems like things would have to work right if i swapped the under hood harness but now the only problem is that there definately is not wiring for the ESOF
in that harness and given the first problem i mentioned that could be a problem and a lot of work. I had seen people running into ABS
connector issues doing that as well.
So I want to hear all thoughts, aside from "you should have kept the automatic". I'd like to keep my current harness so as not to lose any functions such as overhead computer and grid heater (the donor didnt have one) Are there more wires I need to cross to make the check engine light go away and the cruise work with a manual computer? Is there a way to fool my auto computer to make it not try to shift? specifically which wires do i need to cross to allow the ESOF
to work properly.
Help me out guys.