Hole in transmission line

[rebelmyers1]

Gone out of town and my Tahoe has sprung a transmission leak in the metal part of the cooler line. Any tips to patch it and help get us home?


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[3 Gun Shooter]

Compression fitting, if you can't replace the line.

 

[bwringer]

There are several options, depending on how much room you have, where the leak is, etc.

Depending on access and the OD of the line, you may be able to replace a segment of the line with rubber hose. You can buy transmission cooler rated hose at any auto parts store (do NOT use any other type of hose). Cut out the bad segment with a small tubing cutter, add two high-quality hose clamps at each end and you're back in business.

I've also used a piece of transmission cooler line to bypass leaking transmission coolers temporarily, just as a way to limp home, but this is also a great way to overheat the fluid in warm weather.

Not sure whether JB Weld or repair tape would do you any good.

 

[Monkey Milk]

Cut it, add rubber hose and two clamps. careful of metal in fluid. Best to cut with tube cutter.

 

[lilredex]

If there is room and the balance of the line is good, install a compression union, as was mentioned above. If you are stuck using rubber hose, make sure to double up the clamps. That type of connection has a habit of coming apart if there is no "bulb" on the ends of the steel line.

Unions are always a part of my travel kit.

 

[anndel]

Rescue tape. Where's the leak at, the fitting or tube?

 

[rebelmyers1]

Tube. Lines rubbed together.


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[anndel]

Like Monkey Milk said cut the tube where the hole is, replace with rubber hose then clamp on both sides until you get home then replace the line.

 

[Richard Cranium]

And if you have a small bolt to run around in the line to make a little bit of a flair.

 

[ttpete]

It's easy to put a bead on the end of a tube using a flaring tool and the proper size double flare button. Don't run it all the way down, but just enough to expand the end. It'll keep the hose from coming off.

 

[theoldwizard1]

Cut it, add rubber hose and two clamps. careful of metal in fluid. Best to cut with tube cutter.

Ditto. Try NOT to use low pressure fuel line.

 

[rebelmyers1]

Got some 300 psi trans cooler line and cut the trans line double clamped it. Now to wash the car and get all the trans fluid off the back glass. Thanks guys!


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[finn]

Rubber hose and two clamps fixed mine. I was traveling and back on the road in fifteen minutes.

 

[454ragtop]

Just be careful, with no bead it's pretty easy and common for the hose to pop off. Happened to our beater plow truck this winter, poor repair by a prior owner.

 

[rebelmyers1]

I plan on stopping and checking the fluid every 100 miles. Watching the temp closely as well. Never got over 189


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[sweetk30]

just a fyi for others later do NOT try rubber hose and clamps for gm vehicles with Allison auto trannys . there line pressure is so much higher than smaller trannys .

saw the remains of a flush machine a guy hooked up to a Allison and it went BOOM ! ! !

there was a reason there wasn't specific ends to fit the Allison transmission flush machine.

 

[ex-x-fire]

This didn't happen to the guys on Roadkill so I don't have a clue.
Just kidding, I've patched them up & double clamped each side.