GeorgiaJeeper93 Posted February 20, 2016 Share Posted February 20, 2016 I'm replacing my radiator, but I'm having some trouble with the transmission cooler lines. They are pretty rusty, and no matter what I do, when I try to loosen them, they start to bend. I've tried heat and penetrating fluid. Is there a trick to this? Link to comment Share on other sites More sharing options...
gogmorgo Posted February 20, 2016 Share Posted February 20, 2016 There should be quick disconnects in the lines, not too far from the radiator. If/when you destroy the plastic disconnect clips, Dorman makes them and you should be able to find them at any parts store. I can find the part number if you need. As for unscrewing them, it's much easier once you've got the disconnects off. You can just spin the whole thing off once you've got the rad out without worrying about twisting/bending them. Link to comment Share on other sites More sharing options...
ParadiseMJ Posted February 20, 2016 Share Posted February 20, 2016 I'm replacing my radiator, but I'm having some trouble with the transmission cooler lines. They are pretty rusty, and no matter what I do, when I try to loosen them, they start to bend. I've tried heat and penetrating fluid. Is there a trick to this? What have you done so far? Don't try to unscrew them. The trans cooler lines are attached with "quick connects". You shouldn't have to unscrew anything. You need to pinch the little plastic tabs together and pull straight out. The one on the top of the radiator might be a screw off AFAIK. Should be a brass or aluminum fitting...or not. If your Jeep is a 91-92 you may need the disconnect tool...available at your friendly AutoZone or similar parts house. If your lines are in that bad of shape just go buy new ones, they're not all that expensive and they should come with new seals. The seals for the fittings are a little tricky, Consist of an o-ring, a spacer, and an o-ring, and they're sandwiched in the fitting. If they do not have the o-ring set up along with the lines...take the O-rings off/out of the line and SAVE THE PLASTIC SPACER, go to the hardware store and buy the appropriate O-rings. You'll need 8...or more accounting for oops's Link to comment Share on other sites More sharing options...
ScottJeep Posted February 21, 2016 Share Posted February 21, 2016 A zip tie is a great "tool" for the disconnects. Here is a post I contributed to with my XJ... http://www.cherokeeforum.com/f2/replacing-xj-radiator-requires-quick-disconnect-tools-185502/ (Yeah GAPANDA...long story) Link to comment Share on other sites More sharing options...
HOrnbrod Posted February 21, 2016 Share Posted February 21, 2016 Rock Auto carries the tranny coolant lines and fittings if you want to replace them.Pressure Hose 624301Return Hose 624300Metal Tube 624334Fittings at Tranny 800714 Link to comment Share on other sites More sharing options...
GeorgiaJeeper93 Posted February 21, 2016 Author Share Posted February 21, 2016 I've decided to replace them. Not sure which route I will go yet. Link to comment Share on other sites More sharing options...
ParadiseMJ Posted February 23, 2016 Share Posted February 23, 2016 I've decided to replace them. Not sure which route I will go yet. Go hornbrod's route...^^^^...Have you seen his MJ ? It's cherry! Link to comment Share on other sites More sharing options...
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