Warm fluid from the transmission is forced under pressure through one line to the radiator for cooling. The radiator will cool the bulk of the oil, then it runs through the new auxiliary cooler to further reduce the temp before it returns to the transmission. Michael, my 3 core radiator, police fan clutch, and 180 tstat will keep the car cool almost 95% of the time. You'll of course need to add additional tubing so the lines reach the aux cooler One article says that tranny's for the 3.6 have a stand alone cooler with variable speed fan. If your cooling sys is marginal, the internal cooler isn't going to help by adding more heat. Inlet is the line closest to the engine. You could either go to AutoZone/O'Reilly/etc and buy the smallest generic trans fluid cooler they have, or perhaps go to a wrecking yard and remove one from whatever random vehicle you find. Water cools 32 times better (faster) than air always, period. Transmission coolers are typically square-shaped and thin, so they can easily attach in between other components. ATF flows through this cooler every time your car is running. The transmission cooler is like a radiator within a radiator, except instead of exchanging heat with the air, the oil exchanges heat with the coolant in the radiator. Good news: based on what I've seen on various OEM vehicles, a PS cooler can be very, very small. All automatic transmission equipped vehicles come with a transmission cooler built into the radiator. If you live in a very warm area, it may be better to bypass the factory These are the transmission cooler lines. Use both if you want. Questions about transmission coolers, the different kinds, their capacities, why they are used, how they are rated, and how and where they are installed are answered. Frequently, they may get bent or … With the mounting hardware provided with your oil cooler kit, mount the cooler 1/2 to 1 inch in front of the radiator or A/C condenser. Some vehicles manufactured after 1975 will have transmission coolers built into the car's radiator, as will most trucks designed for towing. Most kits offer adhesive mounting pads that allow you stick the cooler right onto the radiator, but there are also usually extra mounting rods that you can insert between the radiator and the cooler's mounting flanges. In 2007, Nissan issued a warranty extension for the transmission oil cooler / radiator assembly for these vehicles to 8 years, 80000 miles – up from the standard 3 year, 36000 mile bumper-to-bumper warranty. I do not have an electric fan. This will provide the most efficient transmission fluid cooling system for your vehicle. Did a test this afternoon to determine the 'return' or 'cool' line for fluid from the factory transmission cooler system housed inside of the radiator. The hoses used for oil transfer are usually very stiff and tough, which means they can withstand high pressure. keakar, Oct 11, 2014 #12. This cooler has plates that feel like a radiator. 3. The cooler fitting connection is inside of the transmission cooler which is inside of the radiator bottom tank. Transmission coolers help cool the fluid in transmissions, helping transmissions work better and last longer especially when they are under the extra load of towing. Once the transmission fluid has breached the thread connection, it only has to get past the large O-ring in (Pic #3) to enter the coolant. Once you have both transmission cooler lines removed and in the bucket remove the transmission dipstick and place the long funnel into the tube. They typically resemble brake lines and are made of metal. Install the cooler between the transmission and the radiator, so the fluid goes through the cooler before it goes through the radiator mounted cooler. Warm fluid from the transmission is forced under pressure through one line to the radiator for cooling. Transmission cooler lines leaking at the radiator puts car owners in a distressing situation. So, as soon as the transmission cooler lines at the radiator of your car are starting to leak, you should immediately take necessary steps to prevent a further issue from arising. If a cooler is mounted in front of the radiator, then an a/c condenser is added, there will be excessive heat ( more than one would like )and a reduction in air flow. transmission fluid cooler B&M recommends the following guidelines for a successful and efficient installation: Route the transmission fluid through the stock radiator cooler, then through the supplemental B&M SuperCooler and then back to the transmission. Transmission coolers have one job, keeping your car’s transmission fluid cool. Auxiliary coolers are just that, in addition to. These are the transmission cooler lines. Position the auxiliary transmission oil cooler so its inlet and outlet tubes face the existing transmission oil cooler lines. transmission oil flows. Hope this info helps. If they haven't been removed in a long time you may need to twist them while pulling them off. In other words, they are not easily damaged. The transmission cooler is a small radiator that cools the automatic transmission fluid that circulates through the transmission.It can be a separate unit, or it may be integrated into the engine radiator. These radiators have a coil in them that allows the transmission oil to run through the same fins that the engine cooling system uses. I, too, will vote for not running your PS fluid through the radiator's in-tank cooler, for the same reason. Warm fluid from the transmission is forced under pressure through one line to the radiator for cooling. To maintain stable engine temperatures, transmission fluid passes through a heat exchanger utilizing engine antifreeze in some fashion, depending on engine design. On my 97 GCV 41te it is the line towards the driver's side that is the outlet. The oil cooler receives the transmission oil through a number of hoses which are connected between the transmission output and the oil cooler in the radiator. "Transmission Cooling: You must have a transmission cooler in your radiator regardless of what someone has told you for the transmission to last. If you do not have a transmission cooler on your truck and you plan to tow or haul heavy loads or you are ... if you installed it before the radiator it would add more heat from the radiator and actually warm it up again going through the hot radiator rather then cool it. Yesterday, I was stuck in traffic (didnt move one foot) for 45 minutes, 110F air temp, A/C one notch from max and I watched the temp slowly climb up to 200F. In the lower tank of the radiator, there is usually a small loop of tubing that is connected to the transmission hydraulic system. First Extended Warranty from Nissan to Cover Radiator Defect and Related Transmission Damage. Unlike other vehicles, the 2005 through 2010 Nissan Pathfinder, X-Terra and Frontier radiators have a problem. Transmission oil can reach extremely high temperatures during operation, and this fluid can be cooled down with an external oil radiator. Through the internal cooler for faster warm ups and consistent trans temp, and then through an external cooler to make sure it getting fluid back that is a little cooler than the engine in case the engine runs hot. This cooler allows the fluid to warm up to a … Hold the transmission cooler line where it goes into the radiator and pull them off. In the transmission system, the fluid passes through a steel pipe to ensure the coolant circulation. Water is also forced to lower temperatures by cooling pipes. Another way to install a transmission cooler is to use a mounting kit that includes flexible brackets for easy installation. For the same reason, the addition of an auxiliary transmission fluid cooler isn’t just necessary for those who tow trailers anymore. The hoses traveling from the transmission to the radiator are called transmission cooler lines. NEVER bypass the radiator cooler if the vehicle will be operated in cold weather areas. If you follow their path, they will lead you to the fittings in the lower radiator tank at the front of the vehicle. You could use a stand-alone transmission cooler, but your vehicle’s transmission actually operates better at around 160-200 degrees than it does when cold. This way, cooling load on the engine is reduced in warm or hot temps and the radiator mounted cooler can warm the transmission oil in cold weather. The rods, usually plastic, go through the transmission cooler and the radiator and secured with the fasteners. A nice cooler installation, mounted with its own brackets, plumbed with braided lines makes a nice installation. If you follow their path, they will lead you to the fittings in the lower radiator tank at the front of the vehicle. They channel hot transmission fluid to the radiator, where it is cooled, then return it back to the transmission. Radiators usually have a tank on each side, and inside the tank is a transmission cooler. Some cars use the same cooler as the engine transmission cooler. To help eliminate the heat, Nissan has an automatic transmission cooler. That the engine cooling system for your vehicle auxiliary coolers are just,. 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