3.7L liberty not starting after fixing PS fluid leak

[grumpy_gladys02]

Hopefully this is appropriate to post here, but:

I’m at a loss; my jeep was running fine until I decided to fix a worsening PS fluid leak. It sat for a week as I was waiting for the pump and reservoir to arrive; hoses arrived from a different warehouse from the pump and reservoir. Anyways, as I finished piecing the PS components back together with my uncle, topped it off with fluid, and took it for a test drive around the block, I noticed the security light come on and after the engine dies.

The anti-theft system is on; scouring the internet, my uncle and I figure it may be a bad pcm and skim— we’ve since installed a new pcm that was flashed for a skim delete, removed the skim, and installed the new PCM. In theory, it should run fine, right? The fuel pump is active when you put the key in the start position without cranking, but the jeep will still either crank and not start or start and run before cutting off after running for a minute or so. Fuses are fine. We don’t know what else to do

Further ideas would be greatly appreciated, thanks in advanced

 

[JeepJeepster]

No codes? Have you checked fuel pressure when it wont start?

Does it have spark when it wont start?

 

[DadOSix]

hmm - something does not add up here.

You worked on the PS and then the security lite comes on afterward - did you all remove / drop the steering column? If yes, did the steering wheel stay in position? - curious about the status of the clock spring.

If no - there is not a real good reason to pop security on after working on the pump and hoses. Curious as to why you jumped to a PCM with SKIM delete right away.

Order of operations counts with a SKIM / PCM change - from what I have read, skim module and ring need removed before powering up the new pcm with skim software disabled. - ie - the flashed pcm does not think about a skim until it sees one.

what year is your KJ?