How difficult is it to swap a PCM

 

There is one bolt at the firewall, pax side, that holds the wire harness to the pcm. Remove it and unplug. then take off bracket behind pax kick panel that holds the PCM. The PCM then comes right out. that said, if all is working why would you want to remove the PCM? If you don't install a new one exactly like the one you have, your truck won't run.

 

It still has to be programmed regardless.

 

How come? PATS?

 

Correct ecm calibration and PATs

 

You can get some PCM's to run, but you will have certain malfunction due to pats. Just get it flashed by the dealer.

 

Hello guys, first time posting,

I own a F150 4.2 V6 manual tranny (love it). I have some issues and decide to get a new ECM, at this point i found that my truck is using one from another model and year. Could I find mine from VIN?

 

At the dealership, they request to left my truck. Not gonna happen, one this ecm still working, two is the only vehicle that i have.

 

Might wanna wait until you sober up, then try this one again.

 

English isn't my first language, but thanks for your answer.