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Thread: Transmission Cooler Nagging Leak

  1. #1
    Member Since
    Jun 2002
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    2001, Proton Yellow, #0580
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    Transmission Cooler Nagging Leak

    I've got a fairly constant drip from both of the soft tubes connecting my tranny to the tranny cooler. I've fiddled with the clamps and tried replacement hose clamps - but eventually they just start leaking again. I think the hoses may be stiffening up - either that or as I read in an earlier thread, there isn't enough flex which causes the ends to move a bit, producing the leak. Has anyone else addressed a similar issue? I'm getting tired of constantly checking the ATF level and topping-up.

    Anyone have a line you can recommend to replace the old? I've been looking at a couple of different manufacturers for the lines, both are carried by Advance Auto Parts:

    Kit with extras (this may be for a specific oil cooler):
    http://shop.advanceautoparts.com/web...rial_5670023-p

    Hose by its lonesome:
    http://shop.advanceautoparts.com/web...air_18890661-p

    I think the biggest failure point has more to do with the hose clamps than anything else - the factory clamps are the slip-type that just uses compression - once they are disturbed they never seem to re-seal. The tiny screw-type hose-clamps you can use to replace them tend to slip sideways as you tighten them - I think the engineering on them makes them fail on small diameters.

    Has anyone found a good replacement hose clamp? It would need to fit a sub-1/2" diameter tube.

    -- John
    John Eaton
    Original Owner
    2001 Proton Yellow #580
    Atlanta GA

    http://wildtoys.com/vehicross/
    http://vehicross.blogspot.com/

    "Metaphors be with you"

  2. #2
    Member Since
    Jul 2010
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    1999,silver,VX,0118 & 1144
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    I just bought hose stock from auto zone. Also thumb screw hose clamps so I can tighten when needed.

  3. #3
    Member Since
    Nov 2012
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    1999, White Ironman Ed., 1707
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    Its not the hose clamp, the transmission cooler has a jacked up size nipple! I used a smaller hose and just stretched it a little and no more leaks!! Hope this helps!!! Mine leaked like a siv until I tried a smaller diameter hose!!

  4. #4
    Member Since
    Feb 2007
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    2000 Proton VX - 0776
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    Mine leaked after the accident repairs. They cut about 1/2" off the ends of the lines & re-attached with new (better) clamps.
    [SIGPIC][/SIGPIC]

    Put a smiley after you say that Bub.

  5. #5
    Member Since
    Jun 2002
    Location
    1999, Ebony, VX, #1679
    Posts
    8,422
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    I replaced mine when I did my timing belt. From age they were hard and brittle. Just bought hose "by the length" from Orieley auto. Think it cost me about $6.
    Billy Oliver
    15xIronman
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  6. #6
    Member Since
    Nov 2011
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    1999 Ironman 1515
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    I just went to autozone and got some stock hose. I always use two hose clamps on each end. Just make sure the hose is rated for transmission fluid.
    Mike

  7. #7
    Member Since
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    1999,silver,VX,0118 & 1144
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    I have an idea..... In the pipe before hose, make a small hole. Then your hose won't leak anymore.

  8. #8
    Member Since
    Nov 2012
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    1999, Blue (Astral)5 spd VX #1396 ; '01 Proton 0753
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    775
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    He said nipple.
    There's no 'I' in denial.

  9. #9
    Member Since
    Jul 2010
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    1999,silver,VX,0118 & 1144
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    5/16" fuel line works ... that's the size of trans line I.D ... 3/8 too big

  10. #10
    Member Since
    Oct 2007
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    2000 Victory White Ironman
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    Yes the fuel lines from Autozone work just fine and will cost about $3.00 each mine have been on for 6 months and no leaks.

  11. #11
    Member Since
    Nov 2012
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    1999, White Ironman Ed., 1707
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    Ditto!! You have to stretch it a little but they fit!! Mines leaked like a siv until I went with the smaller hose and massaged it into those fittings!!

  12. #12
    Member Since
    Jun 2002
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    2001, Proton Yellow, #0580
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