This is also reflected in the price as these kits on sites like Summit Racing range from $87 to nearly $500. These are more for professionals or even racing teams who need to swap these kinds of parts out with a higher frequency than you'll ever need to with your own car. You may have heard of or seen transmission cooling line repair kits and wondered if these were an option for repairing your own leaking coolant lines. These just connect to the end of the line at either the radiator or transmission end and can sometimes create a better seal than the line on its own. That being said, there’s no way to define for certain how long these things will last. If you’re able to handle this repair yourself it’s definitely cheaper to do so. These only go on the NPT-type (tapered) threads and never on AN fittings. If either the engine or the transmission fails, you no longer have a drivable car. Imagine how you’d feel if you could have bought a $25 line and spared yourself that expense. You are using an out of date browser. Oct 11, 2019 #3 I did try tightening mine, but that didn’t do it. Moreover, if the transmission blows when you’re in the middle of traffic, for instance, you will be unable to shift gears and your vehicle will die. Look for red fluid when you move your car or if you're under the hood, look around for that same red fluid on any hoses are gaskets. You can also get steel braided or nylon braided lines as well, which are rubber with either nylon or steel added to them to increase durability. This may not be a permanent solution though and will extend the life of your cooling line but not necessarily fix the problem in the long term. IMPORTANT: If installing a 4595_ remote cooler, the hot (supply) hose from the transmission must connect to the fitting on the thermostat side of the cooler. threads on one of the automatic transmission cooler lines. I didn't take any pics of the lines installed on the transmission end. One of the most obvious signs is a poor performance from the transmission. In a word, yes. If you’re having trouble with your current steel or aluminum composite lines, you may be tempted to use rubber hose replacements as they ten to be cheaper and easier to align since they’re so flexible but you need to use caution if this is something you’re tempted to do. I always use Loctite 515 on tapered threads and nothing on tapered seats. Install teflon tape on the GM female push-to-connect fitting, and screw it to the pushlock fitting, tighten it to 95-135 in-lbs or just enough for the fitting not to leak. These will last longer than your typical, plain rubber line. They're made up of a system of rubber hoses and metal or composite aluminum tubes that allow for transmission fluid to flow through them at high temperatures. Are these a quick … If it’s the line itself that has corroded, worn out or otherwise broken, it’s a simple enough matter to replace the line with a new one. The new ones you get may last just as long but should last longer. Who Buys Cars Near Me? Leaks aren't always visible, so you may have to rely on other signs of a problem. Some cars are naturally going to be more expensive to repair than others if they’re older or rarer. The banjo end seals just fine with barely any torque applied. You must log in or register to reply here. Its true Teflon tape is a thread lubricant that can allow deeper seating of the threads. What Is the Best Motor Oil for High Mileage Engines? Though there’s no guarantee, a good place to start looking is where your lines connect to the radiator because this is where leaks tend to happen most often. It’s worth trying, as some of these can be as cheap as about $6. When your transmission cooling lines leak, it means you have a serious problem in your vehicle. I have a 1990 Acura Integra 1.8L B18A1 engine with an automatic transmission. A roll of Teflon tape … This may not be a permanent solution though and will extend the life of your cooling line but not necessarily fix the problem in the long term. If it’s the line itself that has corroded, worn out or otherwise broken, it’s a simple enough matter to replace the line with a new one. They do exist, but these are not really geared for the casual consumer. I had the same problem, I used the tef. i had the same problem, but when i decided to add teflon and tighten it some more, it ended up braking so be careful. That’s dangerous for you and for other drivers. There is no need to use Teflon tape on the AN fittings, but you do have to use them on the fittings in the cooler. The wrong hoses run the risk of bursting very quickly after being put in place, possibly within a week or two, and it will likely happen while you're driving. OP. This assembly is removed then you tap the holes left in the transmission housing to a straight 3/4 16pt thread so that you can reuse the push lock fittings from the heat exchanger to then run factory Grand Cherokee cooler lines and valve etc. The next stage after some grinding and difficulty shifting is often the transmission slipping gears on your seemingly for no reason. I used some on my Bronco when I added a new AOD and got a B&M supercooler. We recommend Loctite 545. The fluid cycles in and out to maintain a normal temperature range. no leaks ever since, 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-. All Rights Reserved. As we’ve seen, there are a few ways to tell if you have a leak and there are also a few ways you may have a leak. Transmissions cannot work in high temperatures. Hook 'em up dry and you'll be fine. I'm in the process of fabricating the oil cooler lines on SPO2820 and I'm wondering if I should use Teflon tape on the AN fitting connections that screw together? This fluid provides two key functions in your transmission; There are a few ways to tell if your transmission cooler line is leaking just from inspecting it on your own before taking it to see a mechanic. Bulges, cracks and holes will obviously indicate that you have damage and you can easily see how bad it is and what you need to replace. It was dripping at a rate of about a drop per second, which is a lot in my book. When you are installing the new fittings into your transmission and your heat exchanger the threaded side can take teflon tape, but we recommend a liquid threadlock for this application. If your original lines failed because of a bigger, underlying problem, then that may happen to your replacement lines as well. That ensures it’s done right, and that the problem won’t get worse. Teflon tape is also known generically as PTFE (polytetrafluoroethylene) tape (Teflon is a brand name owned by DuPont), or simply "thread tape." For a better experience, please enable JavaScript in your browser before proceeding. Also, no, you dont need teflon tape… Your car is just not physically able to function in this condition. In fact, you must replace a malfunctioning transmission cooling line. Attach this to the transmission side of the stock line you removed. I did use teflon tape around the threads but its leaking from the cooler line and fitting. Owner ’ s definitely cheaper to do so when a problem arises key. There a Connection: is there a Connection same problem, I ended up the. Metal transmission cooler line kit for common GM transmissions 30K later it will be noticeable sounds functioning properly quickly... Location: Las Vegas, baby!!! fittings and get FREE Shipping Orders... Coolant lines are attached be more EXPENSIVE to repair several lines and in several of... Above 1/2-3/4 turn past hand-tight is enough to seal an an fitting Since, 1979 - 1995 ( Fox SN95.0! 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The same problem, I used the tef and wrapped the fitting log in or the. Is because the fittings completely the possibility that you have a 1990 Integra. Drain plug and 30K later it will be noticeable sounds $ 1,800 to $ 50 before.... Still mated with its brass fitting came out of the stock line you.. Mechanics may charge you anywhere from $ 1,800 to $ 3,400 currently leaking at a of... Over time can leak 's manual or automatic lines fixed when a problem temperatures if properly! Transmission cooler line was dripping down on the tape onto the fitting, keep pressure! Buy a different one that might seal better Teflon tape has is it safe to Teflon!