messy

Thank you all so very much. The more i read and study these jeeps the more and more my mind is saying go to napa for my parts.

Original pump went out so i replaced it, then gas tank started to leak a little so i replaced it. I'll be damn the new pump has stopped workin. CARTER P74155 This is the pump i replaced the old one with, purchased from rock auto, since i have to replace, I really don't like dropping the tank (this will be the 4th time) so I am looking for the best original pump money can buy. opinions please.

I think that was the final issue with spark, seems to have fixed a tiny miss i had also. Thankx again for the help and links to tech. issues.

Well just as an update, seems when the truck starts to get warm it is still stalling out with no spark. I have checked power at the coil after it stalls out and continue reading voltage, so I have a new coil I am getting ready to install. In the lovely snow I might add. :-/

That would be them, my dumb @$$.

*FIXED* well seems I didn't clean 2 connections, after a friend pointed them out as a possible problem. It was the 2 connections to the left of the head "i think one grey and one black", one of them was pretty corroded up, cleaned greased and running. Thankx

Well i got the NEW cps installed, turned it over and nothing :-(. Stuck. Kinda funny, it will start if i unplug the cps and wait 5-10 min, plug back in it will run for 1-5 secs then abrubtly dies and will not restart. so i unplug 5-10 min plug back in and it starts WTH.

" where do i start? I found a 90 comanche that has been sitting for who knows how many years, been fixing small things here and there and got it running pretty well. So i decide to go on a test drive through a trail behind my house and the jeep started stuttering, quit moving then died. Started working and found i have no spark so i start reading and testing things, long story short i put in a used cps and it ran :-). Drove back to the garage and shut it down, came out later and it won't start. NO SPARK! lol So i have 3 comanche's and the 89 is a parts truck, received a brand new cps this morning and going to try that but was curious if the puter outa the 89 would work. I have redone all the grounds in the engine compartment, did ohms tests on coil, undid all electrical connections and added di-electric grease. so i am hoping when i put in the new cps, hope it works.

Thanks for the replies, it is an auto i edited it.

I have a 89 comanche 2wd standard 4.0, would the ecu be compatible in a 90 comanche 4wd auto 4.0?

Thank you for the replies.

anyone have this problem? new pump doesn't sit right, do I just cut it out? http://65.185.99.1/index.php/s/eGIPLFa1X31LWpR http://65.185.99.1/index.php/s/Y80UYsGkFl0F9hS http://65.185.99.1/index.php/s/IjpMzQXXxbnWZSI this is on a 90 long bed pioneer. fuel pump is a carter 5C P74155