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  1. #16
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Quote Originally Posted by Carves View Post
    Hows those new solenoids working out mudderoy ???

    Any harshness between gear changes or anything ??

    Theres stories that A340 parts are different ... but I suspect the components are just more HD compared to what chrysler provided in the AW4 ??

    Some of the ricer websites have mods for solenoid spacers and what not in Toyota Soarers & stuff ... but I dont know how it would go in 4x4 / daily driving.
    A little disappointing from the size difference, I can't tell any shifting changes.

  2. #17
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    I may just being hyper sensitive since I made a hardware change, but the shifts seem to be softer now. Slow acceleration (normal) seems to be like it was before, but the heavy acceleration (normal for me) seems to be softer shift.

    P0700 and P0740 CEL codes persist. I'm going to try disconnecting, cleaning and reconnecting the harness to the transmission. Matt has been trying to get me to do this for a couple of days now.

  3. #18
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    So for the last several days (equal to the number that I have had the new solenoids installed) I receive a CEL light after about 3 miles of driving. I get this in the morning on the way to work and in the evening on the way home.

    I clear the code and either the TCC solenoid isn't locking the torque converter up, or not all the way.

    Anyway I have a definite change in the way the P0740 code is popping up now so I suspect the TCC solenoid has a problem. I mean I only changed the solenoids, the fluid and the filter.

    I gave Makco Distributing, LCC a call today. I wanted to see what their policy was on possibly bad parts. I'm still waiting on a call back from "the boss" but I was told that they guarantee the parts to work when they leave their place. But once it's installed they don't normally replace the part.

    Wait a minute? It's guaranteed to work when they have it, but not when I have it?

    Maybe there's some testing procedure I was supposed to do prior to installing it. I mean I could have applied 12 volts to it and see if it clicked I guess, but does that mean it's working correctly?

    I didn't call demanding a refund or a replacement. I just called to see what my options were, perhaps there was even something I could do that would let them know if it was bad or not. I'm not out to screw someone out of money, but well as I said, I need to wait and hear back from "the boss" and see what they are going to do about this, if anything.

    The three solenoids were 200, it just seems like a lot of money to me to just roll the dice and hope everything is fine.

  4. #19
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Assuming the problem must be the solenoid I ordered another TCC solenoid, but from a different company and one that looked like more of an exact match to the one that came out.

    I wasn't very hopeful of my success but I replaced the new TCC solenoid with the NEWER TCC solenoid. Checking the wiring on the old one was tight and looked fine.

    If it wasn't for the 19 bolts on the transmission pan this would be really easy.

    I went for a long test drive after the change. Absolutely NO torque converter lock up, and no check engine light. I think the computer has a problem with me reading the OBD II data while driving around. So after a good 30 to 45 minute test drive I came home, checked the fluid levels, poked around at a few things, and took it out for another test drive. This time I didn't connect my phone to the OBD II scanner (actively reading data).

    I got about as far as I normally do at 50 mph before the check engine light came on. I drove back home and P0700 and P0740.

    Things can go bad at any time but I find it damned strange that I went from an occasional P0700 and P0740 and the TCC still locked up, to a P0700 and P0740 EVERYTIME I hit 50 mph for 10 seconds after changing the fluid, filter and solenoids!

    Could the other two new solenoids have anything to do with the TCC solenoid?

    I'm thinking about dropping the pan again and putting all the old solenoids back and see if the problem changes. Unless someone has a better idea.

    As it is I can't drive it back and forth to work because even though the transmission doesn't over heat, it is running hotter. Slipping all the time can't be good for the clutch pads.

  5. #20
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Tony, have you ohmed the old and new solenoids?
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
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    And a bunch of other stuff

  6. #21
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Quote Originally Posted by Payless 4x View Post
    Here's a start for ya , it aint pretty but here ya go



    Let me know if ya need more
    I need more.

  7. #22
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    [ame]http://youtu.be/rskFJ0ujbY8[/ame]

  8. #23
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Doesn't sound like that TC solenoid is working. Stuck perhaps?
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

  9. #24
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Quote Originally Posted by 4.3LXJ View Post
    Doesn't sound like that TC solenoid is working. Stuck perhaps?
    I have 3 TCC solenoids. One doesn't click, the two others do, but I have to remove positive and negative each time to make them work. Since the 2 NEW ones are doing this either they work that way, or something is causing them to fail.

  10. #25
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Quote Originally Posted by Mudderoy View Post
    I have 3 TCC solenoids. One doesn't click, the two others do, but I have to remove positive and negative each time to make them work. Since the 2 NEW ones are doing this either they work that way, or something is causing them to fail.
    I had this same problem on my 4L60E. My solenoids worked, but it wouldn't shift it, and then after 30 min of driving it would shift down into 3rd. I had to get the ohm meter out and found that I had a short in the pressure manifold/sensor. I realize you don't have the same tranny, but the point is that I would suggest that you check everything else for a short of some kind.
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

  11. #26
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Transmission shop says the signal to lock up is being sent to the "stuff" that should lock up. They say they can only tell what is wrong by dropping the transmission and looking. Estimated 1850 for full rebuild etc...

  12. #27
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    If you have signal to the solenoids why would you drop the trans ? I agree with Steve bad solenoid. Call this guy, Darrell at 530-877-1304 he's the best in auto tranny's I've found. Tell him I said to call and he can give you lots of info. Hope this helps ya !!
    Aint got no whistle, don't belch out smoke, but my V10 aint no joke !!!

  13. #28
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Quote Originally Posted by Payless 4x View Post
    If you have signal to the solenoids why would you drop the trans ? I agree with Steve bad solenoid. Call this guy, Darrell at 530-877-1304 he's the best in auto tranny's I've found. Tell him I said to call and he can give you lots of info. Hope this helps ya !!
    I've installed two new solenoids and the problem didn't change. That was prior to today's test.

  14. #29
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Tony, that is why I am suggesting doing some work with an ohm meter. Pull the plug on the computer and test the pin that works the TCC and test with it plugged in. If it is an open circuit, or very little resistance, then that is your problem.
    230 hp 4.3L Chevy
    Built 4L60E with manual lockout
    Atlas 4 speed
    Griffin radiator
    On board air
    Warn 9.5ti on custom bumper
    7.5" RE front and bastard pack rear on custom long arms
    30 gal gas tank
    lockers
    And a bunch of other stuff

  15. #30
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    Default Re: P0700 and P0740 trouble codes on 1998 Jeep Cherokee

    Hmmmmmmmmm.. now I know why I like my manual tranny so much.
    2004 4.7v8HO WJ OMG, it's RED , Green bits are now under the hood. Loving the F/R Lockers and D44's. RIP 2011 Lil Ric and Gordo. RIP 2012 Jessie RIP 2013 Kat. RIP 2013 Ed . Lizards can always climb but sometimes they loose their tails to get away. The true patriot will stand beside the soldier when the time comes to fight Now building Asnikiye heca (Buzzard's Roost) homestead farm. My road is my wheeling trail

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