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Thread: Auto Tranny 42RLE 3-2 Harsh Downshift

  1. #1

    Default Auto Tranny 42RLE 3-2 Harsh Downshift

    Hi, I need some help please .
    I'm facing 3 to 2 harsh downshift and could not find other threads discussing this issue . Initially, I've been facing the "no go" problem when tranny is cold, while shifting to Drive or Reverse, but it is now gone after I put new fluid in it .

    As stated, I've tried already putting new ATF 4+ fluid and filter but the problem persists.
    I disconnected the battery to reset the computer, with no luck .

    I found two similar threads but it's about 4-3 harsh downshift and TSB is available .
    http://www.jeepsunlimited.com/forums...ighlight=42rle
    http://www.jeepsunlimited.com/forums...arsh+downshift

    Have any of you experienced 3-2 downshifting issues ?

    Thanks in advance .
    Ofir .
    03 Shale Green 4 SPD auto Rubicon :

    Rubicon Express 4.5" Long Arms
    Daystar 1" BL
    Rubicon Express front & rear mono tube shocks
    Rubicon Express steering stabilizer
    Rubicon Express Extreme Duty Track Bar 1610
    35X12.5X10 Mickey Thompson TTC
    4.88 Ratio
    Kilby Gas Tank Armor
    Rock Rings diff guards
    Off Your Rocker corner guards
    Skidrow steering box armor
    Skidrow engine armor
    Alpine 7998 MP3 player / JBL GTO / Pioneer 4X6/IPOD
    Alpine / Alpine amps
    Warn SDB-210HB lights
    Buchman 1" seat risers
    Warn Rockcrawler bumpers with tire carrier
    Warn Multi Mount 9000 lbs. Winch
    BigDaddy Tie Rod
    48" High Lift

  2. #2
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    Yes - there was some problems with the early build 4 sps - the ones built before about March 03. I bought my 03 in late 02 and at about 8K miles it started the hard downshifting just as you describe. Jeep went all through the tranny under warranty and I've not had a problem since.
    I think you are SOL because you are out of warranty.
    There were many who had the same problem and I think the solenoid pump was the main culprit. Mine had the harsh downshift from 3rd to 2nd usually right at about 30 mph.
    There are some really old posts about this if you can find them.
    Jim
    Otisdog - 2003 TJ Sport

  3. #3

    Default

    Quote Originally Posted by otisdog4 View Post
    Yes - there was some problems with the early build 4 sps - the ones built before about March 03. I bought my 03 in late 02 and at about 8K miles it started the hard downshifting just as you describe. Jeep went all through the tranny under warranty and I've not had a problem since.
    I think you are SOL because you are out of warranty.
    There were many who had the same problem and I think the solenoid pump was the main culprit. Mine had the harsh downshift from 3rd to 2nd usually right at about 30 mph.
    There are some really old posts about this if you can find them.
    Jim
    Thanks - I'm still under the 7 / 70 powertrain warranty so I believe this should be covered . Shouldn't it ?
    Strange, I could not find other posts specific to 3-2 downshifting . Did the dealer replace the entire tranny ? Can you share more on how they fixed it ?

    Ofir .
    03 Shale Green 4 SPD auto Rubicon :

    Rubicon Express 4.5" Long Arms
    Daystar 1" BL
    Rubicon Express front & rear mono tube shocks
    Rubicon Express steering stabilizer
    Rubicon Express Extreme Duty Track Bar 1610
    35X12.5X10 Mickey Thompson TTC
    4.88 Ratio
    Kilby Gas Tank Armor
    Rock Rings diff guards
    Off Your Rocker corner guards
    Skidrow steering box armor
    Skidrow engine armor
    Alpine 7998 MP3 player / JBL GTO / Pioneer 4X6/IPOD
    Alpine / Alpine amps
    Warn SDB-210HB lights
    Buchman 1" seat risers
    Warn Rockcrawler bumpers with tire carrier
    Warn Multi Mount 9000 lbs. Winch
    BigDaddy Tie Rod
    48" High Lift

  4. #4
    Registered Sahara01's Avatar
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    PA- 10 minutes from Paragon, 11 hours from Badlands Offroad Park
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    1,989

    Default

    I'd like to know if anyone makes a "shift kit" for this tranny. I just put Amsoil ATF in my tranny and while I have not had any problems, cold weather performance has been better. It has been bitter cold here....

  5. #5
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    Well I am curious about a 32rh shift kit too..
    98 Sahara with too much money in it.....

  6. #6
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    Quote Originally Posted by ofiredri View Post
    Thanks - I'm still under the 7 / 70 powertrain warranty so I believe this should be covered . Shouldn't it ?
    Strange, I could not find other posts specific to 3-2 downshifting . Did the dealer replace the entire tranny ? Can you share more on how they fixed it ?

    Ofir .
    Well maybe - go in and direct them to the tsb but I'm betting they will deny it because of your mods. I do not know for sure what Jeep did to my tranny. I think maybe the old threads are long gone but there was talk of the solenoid pack [or pump?] being the culprit. I don't know much about trannys so I'm not sure.
    What I do know for sure is that there were quite a few with the same problem and that Jeep mades some changes to the trannys in about Feb or March 03.
    I'll see if I can find the old threads.
    Jim
    Otisdog - 2003 TJ Sport

  7. #7
    Registered George W's Avatar
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    You will need to drain your ATF a few times to get most of it out. There is a ton of fluid that stays in the tore converter so you will never get it out the first time around.. You say it improved for a period of time after the filer change and the addition of the new ATF 4 so it leads me to believe that more fluid changes after a few miles inbtween will corect the issue.. Install a drain plug after you drop the pan next time that way you won't have to go through droping the pan the next few changes.. You installed a new filter so your good to go for 30,000 miles or more as far as that goes.. Also make sure you check the fluid level with a warm tranny and in nutral after passing it through all the gears.. Pull the emegency brake up when checking this way!! George
    2005 Rocky Mountain Edition TJ. Black on black 6cyl auto, D44 3.73 gears, tilt wheel, air ,cd player ,7speaker sound with a sub woofer,Factory fog (driving) lights, 30x9.50X15 on ravine wheels for now.. Tilt wheel, tinted glass. 2 1/2" Rancho springs OME shocks and OME track bar bracket. *His*
    2007 Mustang Fastback coup, red fire Lot's of options and fun stuff the wife wanted!! We had added wide black racing strips over hood roof and trunk and the detailed black Mustang stripes on the sides.. Dealer item! *Hers*
    2014 Jeep Cherokee! Ugly cuss 4 banger 9 speed auto. Other then it's looks we like it. This will be our winter beater to save our vechiles from northeast salt *Ours*..

  8. #8
    Registered Desmo_Pilot's Avatar
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    Phoenix, AZ
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    Quote Originally Posted by Sahara01 View Post
    I'd like to know if anyone makes a "shift kit" for this tranny. I just put Amsoil ATF in my tranny and while I have not had any problems, cold weather performance has been better. It has been bitter cold here....
    Transgo makes a kit. I've used their products on other vehicles with very good success. I'll be installing the 42RLE shift kit into the Jeep very soon.

    Here is the kit info, I believe it is about $75 or so.

    SK®604
    Includes: Case, accumulator and valve body parts.
    Prevents Common Limp Causes.
    Upgrades early designs to later specs.
    Fixes Limp,Special ring/seal upgrades. Beautiful Shifts

  9. #9

    Default

    Thanks for the tips guys .
    As for the kit, please go ahead and open another thread on this .
    Thanks for understanding .

    Ofir .
    03 Shale Green 4 SPD auto Rubicon :

    Rubicon Express 4.5" Long Arms
    Daystar 1" BL
    Rubicon Express front & rear mono tube shocks
    Rubicon Express steering stabilizer
    Rubicon Express Extreme Duty Track Bar 1610
    35X12.5X10 Mickey Thompson TTC
    4.88 Ratio
    Kilby Gas Tank Armor
    Rock Rings diff guards
    Off Your Rocker corner guards
    Skidrow steering box armor
    Skidrow engine armor
    Alpine 7998 MP3 player / JBL GTO / Pioneer 4X6/IPOD
    Alpine / Alpine amps
    Warn SDB-210HB lights
    Buchman 1" seat risers
    Warn Rockcrawler bumpers with tire carrier
    Warn Multi Mount 9000 lbs. Winch
    BigDaddy Tie Rod
    48" High Lift

  10. #10

    Default Update

    Just to keep you updated - I went to the dealer today and told him about the TSBs as well as about the quicklearn computer option which I've learned from this Liberty thread :

    http://www.jeepsunlimited.com/forums...d.php?t=378761

    After he applied quicklearn, the problem is gone . Hurray !
    I'll let you know if it re-appears .

    Thanks again ! I'm way relaxed now !

    Ofir .
    Last edited by LoTGoD; 03-22-2011 at 10:07 AM. Reason: fixed link
    03 Shale Green 4 SPD auto Rubicon :

    Rubicon Express 4.5" Long Arms
    Daystar 1" BL
    Rubicon Express front & rear mono tube shocks
    Rubicon Express steering stabilizer
    Rubicon Express Extreme Duty Track Bar 1610
    35X12.5X10 Mickey Thompson TTC
    4.88 Ratio
    Kilby Gas Tank Armor
    Rock Rings diff guards
    Off Your Rocker corner guards
    Skidrow steering box armor
    Skidrow engine armor
    Alpine 7998 MP3 player / JBL GTO / Pioneer 4X6/IPOD
    Alpine / Alpine amps
    Warn SDB-210HB lights
    Buchman 1" seat risers
    Warn Rockcrawler bumpers with tire carrier
    Warn Multi Mount 9000 lbs. Winch
    BigDaddy Tie Rod
    48" High Lift

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