Big Dan

no

That's within normal Sent from my Pixel 4 XL using Tapatalk

Renix, in general, has a long crank. Sent from my Pixel 4 XL using Tapatalk

Thanks for the info. After reading through your fix, it would not work for me. The EGR system has been removed from my engine.

That has been completed Sent from my Pixel 4 XL using Tapatalk

Update #1 - I refreshed the dipstick ground Update #2 - I'll call the problem "mostly" solved. I drive around 80 miles, round trip, this past weekend. The engine didnt cut off on me and there were no major issues. There was, approximately 3-4 times, in total, a quick RPM drop. The engine would go from, say, 2500 RPMs to 2100 and then go right back to normal. This would occur for only a fraction of a second. I did the harness wiggle test, while idling, a was unable to replicate the, thankfully, much slighter problem. With that being said, are there any other common engine grounding issues besides the dipstick stud and firewall to manifold ground?

Yes. I have a 2001 pump on my 89. Fits without issue. Sent from my Pixel 4 XL using Tapatalk

All years of MJ doors will work. Four door model XJs, 84-96, will work

I'll give the dip stick ground a good cleaning. Everything there is secure, but it won't hurt. I'll update, tomorrow, if I have any more engine shut offs during driving.

I have three cats that stay outside and sleep in my shop. Theres at least one murder scene a week (squirrels/rabbits/birds). If nothing else, it's good pest control.

The 2.5L that I used to own was manual steering. It's not the worst thing in the world. But, you definitely know theres no power steering. Maneuvering in parking lots (or any low speed) can be a b*@ch, sometimes.

Alright, I THINK I got it. To everyone's point, if this was it, the issue was electrical. One transmission bolt was a little loose and that has now been tightened. But, I believe, the culprit was the manifold to firewall ground. The bolt on the manifold side was loose and the ground cable had some movement to it. That was tightened up and things seem good now. Engine started without the clutch needing to depressed and no engine shutoff, during testing. I'll drive it around tomorrow and ensure that nothing else pops up. Two things - 1) If that was it, it would make sense that the issue would come and go as driving would cause the cable to bounce around. However, 2) school me on this. I didnt believe the manifold to firewall ground was THAT critical (as in complete engine shutoff). I thought it was more of a secondary ground.

I did have cruise control. As it was not operable, I removed the system.

No. I've had an issue with that previously (which required a replacement).

Unfortunately, no, as that would help me narrow it down. I'll spend some more time, tonight, looking at grounds and looking around the clutch pedal for anything. But, after looking this morning, there's nothing in the path. I, however, can't think of what would cause an engine stalling short. Sent from my Pixel 4 XL using Tapatalk

I'll check the transmission bolts this evening. I checked the travel of the clutch pedal, this morning. Nothing was in its path/it's not hitting any harnesses/wires.

I will check and update. However, assuming it was, that wouldnt explain the engine stalling while driving.

Grounds look good with a somewhat quick overview. I'll tear them down, when I can, and give everything a good cleaning. For reference, this is, now, the issue. As I stated before, there WAS a weird rattling noise coming from the transmission, when the clutch was not pressed in. However, the vehicle still drove and I did not consider it important, for this discussion, as they didnt seem connected. Now, as mentioned, that may not be the case. PXL_20210420_024339949.mp4

I'll check the grounds again. I do have a ground from the block to the firewall.

It turns over but will not start. Clutch pressed in, will start. Prior to the non starting there was a rattling sound coming from the transmission, when the clutch was not pressed in. However, as, at the time, I didnt think it was related to this, I did not discuss it. EDIT - to better answer you question - there doesnt seem to be any difference in noise between clutch pressed or not.

The plot thickens. Decided to just use entirely brand new relays and see how that went. Truck wouldnt start. Put old ones back in, truck wouldnt start. At a loss, I pressed the clutch in...truck fired up with no issue. As soon as the clutch is released, in gear or not, the engine dies. So...perhaps, this is more clutch related and not electrical. EDIT - with that said, now that I think about it, I believe the BA-10/5 pressure plate is still on the flywheel. I didnt read that the AX-15 used a different part number until AFTER doing the swap. As it ran fine, I didnt think anything of it. Anyone dealt with that before/believe that could cause the engine to stop. It's been, as is, for a year or two now.

Will do

First off, I was unable to find any topics that were of similar nature. If this has already been discussed, please link it. I appreciate it. I've been dealing with this for about 2 months. Truck will start and idle without issue. However, when driving, in gear or not, the engine will randomly shut off (RPMs drop to zero) for two seconds, perhaps, and then start back up. Occasionally, this will cause the vehicle to buck, especially in lower gears. If I come to a stop, after this occurs, the engine will die. Starting back up is not an issue. The amount of times this occurs is random. It will do it 10 times in 10 minutes and then not occur for 30, for example. Grounds are, presumably good. I checked them. However, I'm open to re-looking. I've been unable to figure out what is causing this. I assumed this was a CPS issue, but, changing it (NOS MOPAR) did not change anything. I'm open to suggestions as I don't want to start firing the parts cannon at this and really don't know where to start.

Someone else will chime in with more info. Based off what you said (noises), throwout bearing seems likely. Tranny will either be BA10/5 or AX-15 (depending on when the truck was made as 89 was a switch over year). AX-5 was a 2.5L transmission. Sent from my Pixel 4 XL using Tapatalk

Contact nick and see what he has to say. He's good about responding quickly. Sent from my Pixel 4 XL using Tapatalk