Transmission Oil Cooler Line Hole

[motc7777]

I have a 1992 Dodge Ram 5.2L. One of the transmission oil cooler lines right up near the front of the engine has a massive leak due to a hole. I'm guessing the age of it is the reason.

I tried JB Weld steel stick to plug it, but it's not working. I have looked high and low, and even Mopar doesn't make the steel oil cooler lines.

How can I fix this? Any help is appreciated!

 

[dusterdude]

Buy a new line from the auto parts store and a flaring kit and have at it.very simple

 

[Racer9]

You can use a short piece of rubber gas line and a couple clamps as a temporary fix, although transmission line would be better, and last longer.
There are multiple aftermarket solutions to replace the lines, just do a little googlefoo.

 

[dusterdude]

i would use rubber atf hose/power steering hose.its rated fot atf

 

[motc7777]

You can use a short piece of rubber gas line and a couple clamps as a temporary fix, although transmission line would be better, and last longer.
There are multiple aftermarket solutions to replace the lines, just do a little googlefoo.

That's the thing. I have been looking everywhere for it. Oreilly, Carparts.com, RockAuto, even Mopar, and I cannot find it.

 

[Racer9]

You can't find rubber gas/trans line or line replacements?

 

[motc7777]

You can't find rubber gas/trans line or line replacements?

The lines on the truck are steel. That's what I cannot find is the direct replacement.

Are you saying that rubber is good enough for a permanent fix?

 

[Racer9]

I found a couple 'sites that make OEM coolant lines, I didn't see them listed for a 1992 but maybe contact them and see if they make them.

Classic Tube | Brake, Fuel & Transmission Lines

Classic Tube brake, fuel and transmission lines are pre-bent to OEM specs or custom-made for your vehicle. Find the right tubing for your classic car today!

classictube.com

Transmission Lines

Keep your transmission cool with Inline Tube stainless or OE steel lines. Seamless fit for classic and late-model vehicles. Order today!

www.inlinetube.com

Unless you're trying to restore it perfectly there's no reason that they need to look like OEM.
You could get brake line and bend them to fit. Biggest issue might be to get the correct radiator connector.
You could just buy a roll of transmission cooler line and run that up where you need it.
Another option is go to a shop that makes hydraulic lines and get braided lines and fittings. Take the old lines off, walk in and have them recreate them.

 

[motc7777]

You could just buy a roll of transmission cooler line and run that up where you need it.

I think this is what we are going to do.

Transmission line - https://www.oreillyauto.com/detail/...p-rwd?q=transmission+cooler+line#applications

Steel line cutter - https://www.oreillyauto.com/detail/...992-dodge-d150-pickup-rwd?q=steel+pipe+cutter

Hose clamps and I think that would do it?

 

[Racer9]

Just be sure that your trucks lines are 3/8". Easy way is to slip a 3/8" open end wrench over them, if it slips on snugly, it's good. If not try a couple other sizes until you find the right size, then you'll know what size hose to buy.
Make sure you route the new line away from any sharp edges or hot exhaust pipes. Should last quite a while.

 

[dusterdude]

I believe they are 5/16 lines

 

[Racer9]

If they are 5/16" and you use 3/8" hose it might slip off. You would quickly pump the fluid out and burn up the trans. I use a flaring tool to expand the end a little to create a "hump" to help prevent the line from sliding off. Not a complete flare, just bulge it out a little. Use the insert from the kit that goes into the line, it's the second part of making a double flare. Don't do the first part.