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Jeep Grand Cherokee, SUV
#490 of 1101 2001 Grand Cherokee Trans Code 0740
Nov 21, 2009 (6:31 pm)
I have a 2001 Jeep Grand Cherokee 4.0L, 2x4. The transmission has been slipping. The code came up 0740 pointing to the torque converter. I replaced the Pressure transducer, Pressure solenoid in the governor, fluid, new filter and I drove it for a few days. The slipping seemed to be gone. Then the transmission icon on the dash came on. This was the first time it came on, with the prior slipping it did not. The same code 0740 came up again (AutoZone).
I drove the vehicle on the freeway for about 35 minutes. At my next stop, I had no reverse and there was smoke coming out of the transmission stick tube. Since that time I have continued to drive it to work about 10 minutes away. I never go over 35 mph. I hear this rubbing, whining sound about seven minutes into the drive.
Now here’s the kicker. Yesterday, reverse started working again. if the torque is damaged, should reverse gear be going in and out? and if it is NOT damaged, what sensors or valves or electrical parts need to be replaced? Or is it now time to drop the dreaded transmission? Sorry for so much detail. Thank you in advance.
#491 of 1101 Re: 2001 Grand Cherokee Trans Code 0740 [adgrogan]
Nov 21, 2009 (9:08 pm)
A damaged torque converter shouldn't affect reverse but the whole tranny. I would think If the torque converter was damaged that it wouldn't move. On my jeep there is something I think is a sensor, i'll look, it's on the bellhousing. I'm not sure if a vavle engages reverse or a solenoid, my guess would be a solenoid to engage reverse, but i'm not sure i'll see what I find. Also is the tranny getting really hot maybe it's not getting fuild at the right spot, if that's the case something could be burning up. Have you had it to any transmission specilists yet, that would help. And what model is it that will tell you a lot.
#492 of 1101 Re: 2001 Grand Cherokee Trans Code 0740 [adgrogan]
Nov 23, 2009 (10:22 am)
I serviced my 97 jeep transmission last summer and I swear I had enough fluid in it, but my mechanic said it was low. Added fluid and problems went away.
It would be interesting to know how the transmission cooler is suppose to work and if it is OK. Is it under pressure like your cooling system and how can you measure it?
As a precaution you might want to verify that the filter is keyed by shape or bolt pattern. There's not enough space here for all my mistakes.
#493 of 1101 Transmission Shifting Problems
Nov 23, 2009 (6:43 pm)
Does anyone know why code 26, Governor Pressure Sensor Offset Drift, for the tranny would be coming up?
#494 of 1101 2000 \jeep Grand Cherokee - transmission slip when turn left only
Nov 23, 2009 (11:23 pm)
2000 Jeep Grand Cherokee 4x4 6 cyl. When I make a left turn, the transmission seems to slip for a few seconds then catches and goes into gear. Only happens on left turns. Took to transmission place and they found nothing. Transmission levels are fine
#495 of 1101 Re: 2000 \jeep Grand Cherokee - transmission slip when turn left only [mommymonkey]
Nov 24, 2009 (3:53 am)
I think that could be somthing to do with the rear differention slipping in the turn when all the weight is on the right, because that makes no sense why the tranny would only slip on left turns. It's a thougt!
#496 of 1101 Re: Transmission Shifting Problems [xelvis66x]
Nov 24, 2009 (4:24 am)
I found this article link title on the 42RE Governor Pressure Solenoid and Sensor. Thought it might give you some ideas. I can see your main problem is seeing if the trouble is coming from inside or outside your transmission. Good luck!
#497 of 1101 Re: 2000 \jeep Grand Cherokee - transmission slip when turn left only [mommymonkey]
Nov 24, 2009 (5:54 am)
The transmission slipping on a left turn is a classic sign of a low transmission fluid on the 42RE transmission used on the '95-'98 Jeeps. That happened to me and adding fluid solved the problem.
Have someone recheck the fluid levels (maybe someone else as it could be a not-very-ethical transmission shop) under the conditions specified in the manual. For the 42RE it is with the oil hot, the engine running, and the transmission put in Neutral. But it could be different for your car. The shop I took it to wasn't going to put it in Neutral until I pointed out that that was what was written in the manual. No malice on their part, they're just used to checking it with the transmission in Park.
#498 of 1101 Transmission Problem?
Dec 01, 2009 (12:24 pm)
I have a 2006 JGC Laredo V8:
Seems like the jeep is in a "limp mode". In order to get it to move it you have to rev the engine in order for reverse or the jump into 3rd gear to catch. Had Pep Boys check it out. They said it could possibly be the solenoid. Anyone have any idea's? There are some codes they issued with the OBDII check. I'll post them when I can find them.