99 XJ engine randomly dies, how to troubleshoot?

[sidewaysstarion]

If you want to bring it out to the westside, we can hook my DRBIII up to it and see what's going on.

 

[Boss Cherokee]

If you want to bring it out to the westside, we can hook my DRBIII up to it and see what's going on.

Thanx my buddy has one I've been using. I'm going to take the advice of the Forum and swap out the O2 then the CPS. It does have 191K so maybe it's time!

 

[sidewaysstarion]

Your buddy has a DRBIII or just a generic scan tool?

 

[Boss Cherokee]

Just a generic scan tool. Let me see what turns up and I really appreciate the offer!

 

[xjchopper]

I have a 96 xj and my suggestion is the tps. At first I thought it was the idle air controller but when you mentioned the jar while driving it sounded like your tps. cheap and easy fix.

 

[Boss Cherokee]

Thanx will check it. I've been switching sensors one at a time with my 95 (the ones that will) till I nail it down!

 

[tdicola]

Thanks for the advice everyone. I replaced my CPS over the weekend and so far my XJ has been driving great without any stalls or stumbles. Will watch things over the week but I think this might have fixed the problem.

 

[nfletche]

Classic symptoms of a failing crankshaft position sensor.

I had this same thing happen on my 2000. I drove around like this for awhile until it eventually just completely went out and I got stuck in town at a horrible intersection and ended up having to get it towed home. My advice; fix it before it completely goes out, because it will, and probably at the worst possible time.

I would bet anything this is your problem. Luckily, it's not hard to fix and the CPS isn't too expensive.

Good luck.

 

[slipyoke69]

Where can i get one of those? My 99 Cherokee (4.0) 150,000k has a PO340 code that won't go away ! Replaced camshaft and crankshaft sensors, and still there.....UGH !!

 

[joejeep92]

One of those whats?

 

[birchlakeXJ]

Where can i get one of those? My 99 Cherokee (4.0) 150,000k has a PO340 code that won't go away ! Replaced camshaft and crankshaft sensors, and still there.....UGH !!

Start a new thread. You'll get more accurate replies as people won't have to sift through this old thread.

 

[JeepXJFan]

Thanks for the advice everyone. I replaced my CPS over the weekend and so far my XJ has been driving great without any stalls or stumbles. Will watch things over the week but I think this might have fixed the problem.

Same issues, turned out to be the same problem. Replaced CPS, problems gone.