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Jeep won't start
Posted: February 17th, 2017, 8:37 am
by mikewolf
I recently rebuilt my 92 YJ 4.0. I have everything installed and ready to go but it won't start. I checked the battery with a DMM and it's fine, I checked the fuel rail and I'm getting fuel pressure, I have oil pressure, all my wires are connected as far as I can see. It cranks over and it's not backfiring so the distributor is in the right place. Any ideas?
Re: Jeep won't start
Posted: February 18th, 2017, 2:29 am
by dwg86
Pull a plug and check for spark. If you have fuel and spark, something should happen...even if its wrong.
Re: Jeep won't start
Posted: February 18th, 2017, 12:38 pm
by mikewolf
dwg86 wrote:Pull a plug and check for spark. If you have fuel and spark, something should happen...even if its wrong.
I pulled out a spark plug and left it connected to the boot and cranked it over and I saw spark so I know I'm getting spark
Re: Jeep won't start
Posted: February 19th, 2017, 2:39 am
by dwg86
Put the #1 cylinder on TDC and double check the firing order. Maybe try pouring a little fuel down the throttle body to see if it will fire. Here is a link with FSM instructions...
https://www.jeepz.com/forum/cherokee-co ... ation.html