I hope there are some tranny guys out there, here we go
My 1999 Jeep Cherokee 4.0L6 2wd,tranny is a AW4, check engine light came on so after scanning with obds2 I have a po740 (torque converter clutch circuit malfunction),and the torque converter will not lockup rpm's are to high but shifts good 1st-4th and now something new after I have been driving for awhile one to 2 hours it has began to stall when I accelerate, once it starts stalling it run's fine below 2000 rpm but when you go over 2000 the engine stalls and if I shut It down for a couple minutes and restart It runs good for 15 to 20 minutes then stalls again could both of these be because of the po740 code or am I maybe looking at two different problems, I have no other codes just po740, started to check TCM voltages and resistance but I have a different connector than is shown in manual, and other sources for some reason I have a newer model TCM I have two rows of 13 connectors, where as all schematics show two rows of 16 connectors c1-c16 and d1-d16 need help bad please I am at my wits end, Can anyone tell me what the voltages and or the resistance should be on the TCM of a jeep Cherokee 2000 or later the TCM is a 26 pin as opposed to the earlier models which were a 32 pin thanks, I have already replaced the tranny solenoids, TPS, speed sensor,temp sending unit, checked every other sensor on the thing checked for dirty or bad connectors for vac. leeks, checked fuel pressure CHECKED EVERYTHING still the tcc will not lock up, going to check tranny fluid pressure and catalytic converter tomorrow but the darn thing runs good, I guess I'll drive until It falls out.any ideas out there.Thanks in advance.
DexFie
Email (DexFie@aol.com)

I dunno about your problem, 'cause I lost track about a third of the way through, but I congratulate you on writing a prize-winning run-on sentence!! ...Over 20 lines, at least one question, not a single question mark, and just ONE period! That takes some doing.

Try some punctuation, and post it in Newbie.

Why in the hell would you be checking for "leeks"? Have you crashed into the produce dept at the local supermarket lately? I too caught myself nodding off while trying to read the entire post.

You are asking the wrong people. You need one of those super duper electronic analizer thingy's, or certified mechanic type guy... We just break things and then upgrade, and then break things and upgrade. My best advice would be Propane, but you won't know what I mean.

"I need to be locked up"

I thought this was going to be a thread about someone going to jail. Then I realized this was Jeep Talk, and not Chit Chat. So WTF was I thinking? :flipoff2:

you burned up your torq converter and now need a tranny rebuild.

no im not joking. check your fluid see if its burnt. also once it gets hot and your getting the power loss check to see if your fluid is airated.

been there done that lost a tranny or 3.

DP

"I need to be locked up"

I thought this was going to be a thread about someone going to jail. Then I realized this was Jeep Talk, and not Chit Chat. So WTF was I thinking? :flipoff2:

I was thinking it was going to be about detroits or lincolns.

We are having the same problem in our 2001 jeep wrangler. It tripped a p0740 code as well. It says its a torque converter clutch solinoid. We replaced it, check engine light again. That solinoid tells the converter to lock up, if the converter does not lock up with the solinoid working properly then it is most likley a fried converter, Right? I think so. The computer knows that its not locking up by engine speed and stator sensors, those most be working cause they are not showing codes. Well thats just my theory. We are going to replace the converter (only $100) in a few days and see if that fixes it.