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Thread: Transmission Cooling Line Replacement

  1. #1
    Lifetime Member Getting Dirty Matt's Avatar
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    Transmission Cooling Line Replacement

    .... PITA

    Got the line disconnected but can't get it out. Im gonna try removing the alternator to see if that helps... but right now, this job SUCKS! Didn't see any instructions in the service manual either, or i couldn't find it.

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    Senior Member Getting Dirty criket's Avatar
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    Ouch! Yea it looks like it would be a major pain dude. Best of luck!!!
    SOLD - 2005 | WK | Khaki | 3.7 | QT1 | OME HD Front Struts | Rusty's 2" lift in Rear w/ Monroe load levelers (F150 version) | 265/70 Nitto Terra Grapplers | 17" Moabs | 1.5" wheel spacers | Pinch weld mod | Rear fender trim mod | 4xG Matrix w/ reciever hitch | 4xG Belly guard | SOLID Diff cover | Cobra CB radio | 4xG CB radio antenna mount

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    Lifetime Member Getting Dirty Matt's Avatar
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    Alternator is out.... still can't get that line out. I'm actually not sure what i want to do at this point. Did Chrysler think this line would never leak? I think I have to remove the cat so it drops/slides out towards the back now, but that's still questionable.

  4. #4
    Lifetime Member Getting Dirty Matt's Avatar
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    Just did some google searching.... looks like most people leave the metal lines in place and cut out the rubber hose section (they leak at the crimps) and then use trans hose and clamps. At least i have a backup plan now..

  5. #5
    Lifetime Member Getting Dirty Matt's Avatar
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    Here's my warning to Hemi owners..... Get a quote! I HATE other people working on my vehicles and I would have gladly paid someone $300 to replace these trans lines!!

    Pictures uploading. Store was out of 3/8" trans hose so I used 3/8" fuel injector hose (at least its high pressure). I'll pick up some trans hose when i have a chance and keep an eye on it

  6. #6
    Lifetime Member Getting Dirty Matt's Avatar
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    Ok here's my work area. Note that intake and alternator have been removed.



    Since i already had the front disconnected I cut the lines and pulled out the front section so I can work on them on the bench... note that even snaking these small sections was a PITA



    Experimenting with the crimp





    That didn't work out too well so i started with a larger section next time:







    .... hoping that those slight nicks in the flanges dont lead to a leak.... but its pretty thick wall tubing so i hope im OK..

  7. #7
    Lifetime Member Getting Dirty Matt's Avatar
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    Now for the lines in the engine bay



    Very difficult with the limited space and limited visibility, so i triiiiiiied taking my time (which im not normally good at)



    First one came off great! (second one didnt...)


  8. #8
    Lifetime Member Getting Dirty Matt's Avatar
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    Once all the crimps were cut off, i put the front lines back in, connected all the quick disconnects, and sized up some fresh hose.





    A reminder of the crappy work conditions:



    All tightened up and now a reminder of why the alternator needs to come out:


  9. #9
    Lifetime Member Getting Dirty Sal-XK's Avatar
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    I don't see any reason that would leak looks fine to me man.


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  10. #10
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    Thanks man. I've been peaking under my jeep every 15 minutes.... just waiting for something to leak. I have a feeling I'm going to have to redo my trans pan gasket since I did that late last night, around 11:30, after a few hours of wrestling with the lines and getting frustrated. I couldn't use my air tools to really clean up the surface, and the exhaust is also in the way which makes it difficult to get the pan back in place (especially with RTV). But that's OK... i'll take that down with a clear head and take my time; maybe put a drain plug on there too.

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