Transmission Lines

[CPH]

Ok, this was my fix for the infamous transmission cooler line fittings. The only place my lines had the plastic inserts was at the end of the 1/2" lines that were just before the cooler. The end of the hose at the cooler is attached the old fashoned way, hose slid over a ferrull manufactured in the steel line and hose clamped. I removed the plastic fittings with pliers. Once the fittins are removed, you will see you have cooler tubes from the trans with a slight ferrull built into the end. If you use a pliable hose, you can slide it over the end of the tube, clamp it and you are done. Due to the hydraulic hose I used, I cut the 1/2" line with a tubing cutter, installed a 1/2"brass compression fitting. I then removed the fitting leaving the compression sleave. (This will not come off!) I then cut the compression nut off with a dremel tool. This left the tubes with the brass sleaves as a stop for the hose clamp. I installed the hose over the sleave and clamped them. All done, no leaks, total cost $17. 00.



Charlie

 

[RedRamer]

i'll be there soon also, as my transmission guy said the lines I have should be re-called but they are not.

In Canada, Chrysler wants over $550 bucks for new lines.

I was wondering if anyone has changed these lines completely with good hydraulic hose lines?

 

[CPH]

Goober,

I believe a few guys have changed the lines end to end. I found it easer and in my view just as reliable to just remove the short lengths of hose with the goofy fittings and replace them with hose and clamps.



Charlie

 

[RedRamer]

I tried to get installed a temp sending unit in the output transmission line and that's when my transmission guy said get new lines first.

This line was brazed (fixed) up near the water rad coller so I thought maybe replace e'm all, but I'll fix the plastic tabs first by cutting them out and maybe just get a new line going to the water cooler.

Would it be easier to get a new line made up of good hydraulic hose as this line is the hottest and I think with the most pressure? Could get the sending unit fitting put in at the same time.

thanks

 

[CPH]

Goober,

i think(someone correct me if I am wrong) you will find that the pressure is not the issue. What you have to worry most about is temp and make sure the hose is rated for transmission fluid. I am going to put my sensor in the line I put new hose in. I am going to put a T in the line and install the sensor in the T.



Charlie

 

[Blair]

You guys with 97 trucks have the good lines the 94-96 trucks are the really bad lines. (I just checked in the catalog). Call if you require any further info or prices.

 

[Joe G.]

If you have the temp sensor in the output to the cooler line like it is on my '95 it may not work correctly if it is very far from the transmission. I changed the fitting setup trying to fix a leak (it wasn't there) and found that on a cold morning that it would not shift to OD for a long time after it normally would have. So I just have a compression fitting on the output line in place of the old fitting with the plastic so that the sensor is about the same distance from the transmission as it was stock. The shift to OD is working right with it that way. If I have any more leaks I will replace the whole cooler line mess with hydraulic hoses and be done with it.



There is another thing you might consider. I think that on a '97 there is a check valve in one of the cooler lines to help with the TC drain back problem. This check valve can be a problem in itself and probably should be thrown in the trash.