CheepComanche

How do I go about testing that?

I've never heard of the closed throttle switch before and I'm not experienced with using the diagnostic ports for testing. I'm not apposed to using them, I'll just need to learn how. I've been wanting to get REM for a while however its out of stock.

So I'm still fighting what feels like a ghost. The only sensor or ground I haven't checked is the MAP. If I rev the truck it works great. Only hangs after being under load. The issue is worst going up a hill shifting from 1st to 2nd. Very occasionally it doesn't do it at all.

Same thing and I cleaned any grease away with electronic cleaner. While I was at it I cleaned the whole strap. Not that that would make a difference

A wire brush was taken to it by the PO. It looks great and before reinstalling I cleaned all the contacts with electrical cleaner.

Yeah, it’s the original strap but it’s clean

The grounds have been cleaned and tightened still no change.

Yes, I just reread tips 1 through 5. I just took a look at my truck and wow the nut for the dipstick ground is backed way off and the wires are loosely sitting on the stud.

I haven’t, but it was by the PO about two years ago. I really should do it myself so I know it’s good.

I’ve tested TPS, MAT, CTS, and power steering switch. And replaced O2, ISA, and all the vacuum lines. I’ve removed my throttle cable and lubed it. While I was doing that I also sprayed intake cleaner around the throttle body to check for any manifold leaks. I can’t find anything wrong. Where do I go from here?

I found if I let off the throttle so I’m engine braking then shift it doesn’t hang.

The CTS sensor is good

I cleaned it with a whole can of maf cleaner and couldn’t get it any cleaner. I figured it was responded to temp fine so I reinstalled it. Now I’m only left with the coolant temp sensor as a possible problem

So tested my sensor again today and it’s working perfectly. Do they just need to stay clean? If so how clean should it be?

I cleaned it with MAF cleaner and that didn’t make any difference. If I need to get a new sensor, where can I get one?

So I have removed the mat sensor and got an ohm reading. It does seem to be working but it responds to temperature change super slowly. After a few minutes in the freezer it barely got to 6000 ohms. Is it supposed to be slow?

I backprobed the mat sensor with the engine running but no matter how much I tried, all I would get was 0 ohms. Could this mean the sensor is bad?

I don’t have cruise so think the most likely possibility is the mat sensor because the problem isn’t quite as bad in warmer weather

no, I’ve really wanted to get it but it’s been on backorder

Unplugging it made it hang worse but nothing else changed. At least we have a little more information now

It hangs the worst between 1st and 2nd. It also gets much worse going up hill.

no, I don't

Yes, I adjusted it so when its fully extended the engine revs to 3500

After messing with the jeep quite a bit I thought my rev hang was being caused by the isa. I rebuilt it, however no change. I also drove the jeep without the isa which completely resolved the rev hang. Just to make sure, I bought a new isa but still no change. This really confuses me because I know I have a properly working isa but if I remove it my problem goes away.

Its a dana 35 that was rebuilt and swapped to 4.10 gears a little over a year ago. I wasn't the one who did the rebuild so I don't have any further info on the diff. I will probably put Loctite on the nut and tighten it down as its not making any noise.