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 Post subject: Transmission Cooler Line Leak
PostPosted: Fri Oct 16, 2020 8:11 pm 
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Location: Central Iowa, USA
I have the front end parts removed right now for a timing belt service. One of the flexible trans cooler lines has had a seeping leak on both ends where it passes under the lower radiator hose. I know nothing about how these lines are made, but it looks like the connections are coming loose. What should I do to fix this while it is easily accessible?
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 Post subject: Re: Transmission Cooler Line Leak
PostPosted: Sat Oct 17, 2020 7:39 am 
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Location: Central KY
Rather than try and re-crimp, I just replaced mine while I was doing the TB.

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2005 Liberty CRD, with 101,XXX miles. New rockers, exhaust valves, Provent, EGR block & butterfly delete & V6 air box

1998 XJ 4.0L, stock with 103,XXX miles

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 Post subject: Re: Transmission Cooler Line Leak
PostPosted: Sat Oct 17, 2020 9:44 am 
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Location: Fort Collins, CO
I just had to do this on mine, I cut the hard line on either side and used these to replace the section of rubber line.

https://www.amazon.com/Cooler-Fitting-C ... 01I3MTL6U/

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05CRD: GDE Hot ECU & TCM tunes, Provent, Cat filter, Facet lift pump, TransGo kit, Florida TC, Samcos, stainless brake lines, HDS thermostat,
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 Post subject: Re: Transmission Cooler Line Leak
PostPosted: Sat Oct 17, 2020 11:40 am 
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If you cut the rubber pieces out and replace the sections with new rubber hose, just be darn sure and use good quality hose temperature and pressure rated for transmission fluid.
Hose rated for the heat and pressures of transmission fluid has a thicker wall construction along with additional cordage for strength.

I have seen some not so smart people over the years use gas hose on transmission cooler line repair and got away with it for a very short time until it bursts/ruptures and leaves the vehicle on the side of the road. :shock: :dead:


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 Post subject: Re: Transmission Cooler Line Leak
PostPosted: Sat Oct 17, 2020 9:20 pm 
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Location: Fort Collins, CO
Yeah mine was left over from the B&M cooler I installed.

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05CRD: GDE Hot ECU & TCM tunes, Provent, Cat filter, Facet lift pump, TransGo kit, Florida TC, Samcos, stainless brake lines, HDS thermostat,
RL super sliders, Frankenlift IIP, Al's Gen 4.5 Arms, 235/85-16 Duratracs, DTT rear, Elocker front, EVIC+TPMS, Turbo timer, McNally pillar gauges, Weeks Stage II kit.


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