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To add the battery is new, fuel pump and filter is new, NSS is new, both temp sensor in the water neck and the one on the rear of the block is new. Haven't tried the poor man's fuel pressure check yet but I will and I will report back on that ASAP.

I have a 91 XJ with a 4.0 that runs like a top with one exception. Every time it sits long enough to get cold it's hard to start. It will turn over and die right away. I have had success with cranking and giving it gas to hold it at 2000 rpms until it warms up but if you let it drop the Rpms...

I have searched and searched and tried and tried and I can't quite get this right. Can someone walk me thru installing a distributor in a 91 XJ 4.0? I keep going thru the motions and with a timing light it still comes up about two teeth off. It has a very long crank time before it starts and...

from what thing>?

I have a 91XJ. 4.0 HO There are two 60 amp fuses in the box on the passenger side under the hood. They are marked ALT PWR 1 and ALT PWR 2 on the lid. What are they? What are they linked to? Thanks in advance.

The Jeep ran with the pump that's in it before. Not well. But it ran. So the pump should be good. I will check for blockages again tonight. Weather permitting.

I stand corrected. With the new computer in the fuel pump does prime for three seconds however there is no fuel pressure at the rail and there is still no power at the distributor or coil.

Changed the computer and the ASD relay. No change. Still no power to fuel pump or dizzy.

I'm trying to right now. I have a close friend working on this issue with me too and the Jeep is actually in his garage right now. I plan to call him in the morning and let him in on this information and we'll go from there. I'll report back tomorrow evening. Thanks!

No. I hear NOTHING from the fuel pump.

By the way, Semper Fi, Gunny Peters. Cpl Hoffman, 1st LAR

That has all been checked then. That was one of the very first things I did. Thanks for the advice though. And Renix does rule. My 89 was great until it caught on fire. Long story. Any other tips?

Which one is the ASD relay? If it is in the main fuse box with the other relays it has been switched and pulled several times. If it is somewhere else how do I locate it?

Here's a lil more info. I put a new fuel pump in already, I put a new crank position sensor in as well. I have checked the fuses and relays and still no power to fuel pump or spark at distributor. The Jeep also has a new exhaust manifold and new O2 sensor. When the Jeep did start and run it...

I have a 91 XJ that I've been told has a 95 motor. The computer that is in the Jeep is from 91 and I suspect that it's fried. Are these computers interchangable between years? Do I need to get one for a 95? Everything is hooked up and I've replaced alot of parts since buying the Jeep...