LEAKING Transmission Cooler Lines

Whatever you do, don’t repair it with any kind of rubber/neoprene/whatever-rubbery hose. The transmission fluid is very hot (north of 200-300 degrees) and the rubber hose won’t hold, and will go at the least opportune moment. I have the scars to prove it. Mine was repaired the first time with a rubber fuel line, and it blew out on an interstate just as I was in the passing lane. Luckily, I saw the huge billow of smoke coming from the back of my truck (it was spraying onto the exhaust manifold) and was able to pull over before I had lost much fluid. I lost less than 2 quarts. After the cost of a tow 200 miles from home and a temporary repair, I had it repaired the right way with metal lines and compression fittings. It was an expensive lesson!