Wrangler 4dr Jeep JK 2.8CRD Gearbox Problem





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  1. #1
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    Default Jeep JK 2.8CRD Gearbox Problem

    Hi all

    So yesterday on the way to East Londenfrom Port Elizabeth, going up a hil, my engine revs just suddenly spiked and then the Jeep lost momentum. Engine was still running fine, but it was as if it is in neutral. Step on the gas and it just revs and doesn't move at all. I have put it in reverse, 4-high, 4-low, but nothing. It is as if the gears don't engage. Any ideas of what it could be or where to begin checking? There are no error codes when I scan.

    Not interested in hearing about how crap Jeeps are or oh it's a diesel. Just looking for some advice from genuine Jeepers.

    Thank you in advance.
    Jacques Pienaar

    Wrangler Unlimited Sahara CRD
    Peugeot 5008 (Swambo's)
    Lycan 29"MTB 27spd (When I'm broke)
    Jurgens XT140

  2. #2
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Sounds like you lost atf? Any fluid marks on vehicle/road?

  3. #3
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Quote Originally Posted by GKE View Post
    Sounds like you lost atf? Any fluid marks on vehicle/road?
    No there was no fluid on the road. Excuse my ignorance, but what does atf mean? Automatic Transmission Fluid? Pulled the transmission dipstick and the level seemed fine.
    Last edited by jacquespienaar; 2019/05/18 at 08:22 PM.
    Jacques Pienaar

    Wrangler Unlimited Sahara CRD
    Peugeot 5008 (Swambo's)
    Lycan 29"MTB 27spd (When I'm broke)
    Jurgens XT140

  4. #4
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Yes ATF is automatic transmission fluid.

    I know these Jeeps had some issues with torque converters, but its weird that it just failed.

    I'm thinking perhaps something on the gear selector failed. You know, moved from D to N, even though the indicator says D.
    2007 Jeep Grand Cherokee 3.0 CRD Overland - GDE Eco Tune + 2" Lift on 265/70/17 BFG KO2's
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    Ex - 2005 Cherokee CRD

  5. #5
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Quote Originally Posted by Quiksilver View Post
    Yes ATF is automatic transmission fluid.

    I know these Jeeps had some issues with torque converters, but its weird that it just failed.

    I'm thinking perhaps something on the gear selector failed. You know, moved from D to N, even though the indicator says D.
    Thanks. Will have to make a plan on Monday to have it looked at. Hopefully nothing major.
    Jacques Pienaar

    Wrangler Unlimited Sahara CRD
    Peugeot 5008 (Swambo's)
    Lycan 29"MTB 27spd (When I'm broke)
    Jurgens XT140

  6. #6
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Stupid question...........but did you check the transfer case lever?
    2012 Jeep Sahara Unlimited 3.6 V6
    Percivamus

  7. #7
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Quote Originally Posted by jelo View Post
    Stupid question...........but did you check the transfer case lever?
    Not a stupid question in my case

    I sometimes put Tcase in neutral when parking in sketchy places to trick thieves.....should see the look of fright on my face when I try to select gears to pull away until I remember to select H on short lever

  8. #8
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Quote Originally Posted by jelo View Post
    Stupid question...........but did you check the transfer case lever?
    Hi Jelo. Yes I did. Tried everything to no avail.
    Jacques Pienaar

    Wrangler Unlimited Sahara CRD
    Peugeot 5008 (Swambo's)
    Lycan 29"MTB 27spd (When I'm broke)
    Jurgens XT140

  9. #9
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Similar problem faced by Jeep GC.....they changed the transmission filter and problem went away.

    This is worked for them but I would also want to know what caused blocked filter....either way your first action is to drop the tranny sump and have a look.

    Keep us posted and good luck

  10. #10
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Quote Originally Posted by Andrepb View Post
    Similar problem faced by Jeep GC.....they changed the transmission filter and problem went away.

    This is worked for them but I would also want to know what caused blocked filter....either way your first action is to drop the tranny sump and have a look.

    Keep us posted and good luck
    Thank you. Will do.
    Jacques Pienaar

    Wrangler Unlimited Sahara CRD
    Peugeot 5008 (Swambo's)
    Lycan 29"MTB 27spd (When I'm broke)
    Jurgens XT140

  11. #11
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Hou vir jou duim vas!


    Currently enjoying my new platkar: Alfa MiTo Quadrifoglio Verde - she's a beauty!
    JKU Rubicon Pentastar
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  12. #12
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    What year is your Jeep?The earlier models up to about 2012 had the Chrysler 545RFE transmission.After that until the end of production they has the Merc based WA580 .
    The Chrysler fitted versions has a separate transmission ECU.On the later models fitted with the WA580 I think that the transmission ECU was integrated with the engine ECU.
    The only other thing you could check for is a blown fuse or relay.
    Keep in mind that your OBD 2 scanner may not be able to read the transmission data.
    This unfortunately leaves you in the hands of a transmission specialist.....

  13. #13
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    If the Jeep is back in PE take it to Thys Geyser at Gearbox & Diff Center.

  14. #14
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Quote Originally Posted by GollyJeep View Post
    What year is your Jeep?The earlier models up to about 2012 had the Chrysler 545RFE transmission.After that until the end of production they has the Merc based WA580 .
    The Chrysler fitted versions has a separate transmission ECU.On the later models fitted with the WA580 I think that the transmission ECU was integrated with the engine ECU.
    The only other thing you could check for is a blown fuse or relay.
    Keep in mind that your OBD 2 scanner may not be able to read the transmission data.
    This unfortunately leaves you in the hands of a transmission specialist.....
    Hi, yes it is a 2008 with the 545FRE gearbox.
    Jacques Pienaar

    Wrangler Unlimited Sahara CRD
    Peugeot 5008 (Swambo's)
    Lycan 29"MTB 27spd (When I'm broke)
    Jurgens XT140

  15. #15
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Quote Originally Posted by Dirk View Post
    If the Jeep is back in PE take it to Thys Geyser at Gearbox & Diff Center.
    Thanks Dirk. I'll phone them in the morning.
    Jacques Pienaar

    Wrangler Unlimited Sahara CRD
    Peugeot 5008 (Swambo's)
    Lycan 29"MTB 27spd (When I'm broke)
    Jurgens XT140

  16. #16
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Quote Originally Posted by jacquespienaar View Post
    Hi, yes it is a 2008 with the 545FRE gearbox.
    If you are interested in understanding more about what can go wrong with these transmissions have a look a one of the Dodge Ram forums .Some of these Pickups use this transmission on some of the models.

  17. #17
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Quote Originally Posted by Jeepiscool View Post
    Hou vir jou duim vas!
    Dankie
    Jacques Pienaar

    Wrangler Unlimited Sahara CRD
    Peugeot 5008 (Swambo's)
    Lycan 29"MTB 27spd (When I'm broke)
    Jurgens XT140

  18. #18
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Joh, Jacques, het jy nog steeds die CRD Wrangler

  19. #19
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    Quote Originally Posted by HeinrichC View Post
    Joh, Jacques, het jy nog steeds die CRD Wrangler
    Hi Heinrich. Ja ek het hom nogsteeds. Dit was nou die 7de keer in 11 jaar wat ons langs die pad gaan staan het. 3 x turbohoses, 2 x batterye, 1 x enjin en nou die. Die probleem is ek hou nog steeds van die bleddie ding en voel steeds soos 'n klein seuntjie as ek agter die stuur inklim.
    Jacques Pienaar

    Wrangler Unlimited Sahara CRD
    Peugeot 5008 (Swambo's)
    Lycan 29"MTB 27spd (When I'm broke)
    Jurgens XT140

  20. The Following 3 Users Say Thank You to jacquespienaar For This Useful Post:


  21. #20
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    Default Re: Jeep JK 2.8CRD Gearbox Problem

    How many km's on the clock? Do you tow with it? Had a similar problem with mine on 70k's Torque converter was the culprit!

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