Transmission Cooler Install- How I did Mine With the help of other members suggestions in another thread, I finally got my cooler installed. In doing my restomod, I wanted to remove the transmission cooler from in front of the radiator, and install it under the car, especially since I moved the radiator to the 6-cyl position in front of the core support, and because I mounted an AC condenser in front of the radiator. Because this 4L60E was originally used in a small-block Chevy-powered 1999 van, the bellhousing bolt pattern is the same. The line coming out of the top of the radiator is the return. Transmission Line T-fitting Adapters are available to “T” into your Transmission Cooler Line for an effortless install. When I dod my cooler I had new lines ran. When figuring out how to install a B&M 70274 transmission cooler into a Chevy Silverado or GMC Sierra, there are a two of important factors to consider, routing the transmission lines and mounting the cooler. The cooler lines out of the transmission run to a thermostatic valve that's located near the bottom of the radiator. To showcase a typical install, we acquired a Hayden universal transmission cooler kit from Gearstar Transmissions. When to Consider a Transmission Cooler . Install the transmission fluid cooler inlet and outlet pipe (3) in the transmission. Jump to Latest Follow ... -transmission cooler-Hayden 397 fitting-4 hose clamps-oil cooler hose about 6 feet ... ColoradoFans.com is the best forum for the Chevy Colorado community to discuss the truck’s reliability, diesel or transmissions problems and more. The package included longer lines, allowing us to mount the cooler to our liking. When he decided to install … Let’s start with installing the trans. We install a B&M SuperCooler transmission cooler on a 2004 Chevy Avalanche 1500. How-To: Install a Transmission Cooler. I have a 2003 Chevrolet Avalanche 1500 4wd, 5.3L. If the vehicle in question has a thermostat that opens at 195 degrees F, once warmed to operating temperature, the transmission cooler will have a tough time reducing the heat of the ATF below 195 degrees F. At the same time, if the transmission is overworked, it might raise the operating temperature of the ATF to 250 degrees F or more. Since the B&M 70274 uses 1/2″ NPT fittings, you will need to get the appropriate fittings to run the lines of your choosing. The best way to insure your transmission does not overheat is to install an auxiliary (secondary) transmission oil cooler. I purchased the transmission cooler (it's about 12x12 inches), and a fan to mount over the front of it from NAPA auto parts. Install them just above the dowel pins on each side of the engine block. New Flex-a-lite Transmission Cooler. Transmission lines are pressure lines, and without that barbed fitting you can blow a line off and drain your transmission (not good!). I want to run it through the factory cooler and then into the new cooler, I dont mind splicing into the factory hard lines but I want to use screw together fittings. I installed a transmission cooler on my 97 Tahoe. The normal operating range of the 6L80 is 160-200 degrees. That's what he told me he removed. Most trucks these days come with optional towing packages that almost always include a transmission cooler. Install the transmission fluid cooler inlet and outlet pipe bolt (2) and tighten to 22 Nm (16 lb ft). The cost is minimal and the installation is easy. They cost from $40 and on up and take about an hour or so to install usually. If you do you will notice VERY little transmission fluid actually goes inside the cooler. The cooler cost $150, and the fan cost $140. The oil follows the sequence as follows: Leaves the tranny hot –> goes into the bottom of the radiator and gets cooled the first time –> comes out the top of the radiator –> goes in the top of the new (exterior) trans cooler –> comes out the bottom of the new trans cooler –> travels back to the transmission. This makes it easier if the cooler has mounting points designed for brackets – but your vehicle must have good mounting points, too. Some trucks that didn't come with the towing package may already have the plumbing to install … The installation will vary by application and may require additional threading adapters. Next, install it on the return side, after the factory cooler. 4. Place the foam pads on the back of the 4 corners of the cooler (supplied with cooler) 7. Apply a bit of CVT fluid to the inlets of the cooler (this helps the hose slide on better. The shop pulled the battery, battery tray, and the transmission support in order to replace the line that connects to the drivers side of the transmission. And it … he didnt use the Hayden 397 plug at all. Here is the line that goes to the "return line" to the transmission. First, due to some fabrications of the front crash bar for clearance issues, this may not be for everyone. Bob if you are going to install the cooler to work in conjunction with the factory cooler then you going to need a special fitting (Hayden part number 397). Install Time: 1 hour ... Stock 2008 Chevy 2500HD, LMM w/Allison 6-speed auto transmission, short bed 4x4 w/crew cab and LTZ trim I have a 2015 Z71 1500 and I am wanting to install a tru cool transmission cooler but don't want to just cut lines and use hose clamps to put on the rubber hoses. Transmission cooler kits usually come with all the necessary tools, hardware and directions to install it yourself. Bob Kleiner is the proud owner of a 1954 Kaiser Manhattan powered by a 502-inch big-block Chevy backed by a 700-R4 transmission. Do you have any suggestions on a brand names or pros and cons of doing this. I mounted my transmission cooler on the bumper using "L" brackets and tek screws. 6. A person with minimal automotive skills can install a transmission oil cooler in a couple of hours or less. I was looking for a way to upgrade my factory transmission cooler to one that cooled a little better. • Check transmission cooler for glycol and/or water contamination • Scan vehicle computer, record any codes, and fix all causes of codes before installation of replacement transmission. Put the clamps on the hose and attach to the cooler (tighten clamps) 6. How to install a transmission cooler in your Colorado 3.5 - Chevrolet Colorado & GMC Canyon Forum How-To: Install a Transmission Cooler - Chevrolet Colorado & GMC Canyon Forum Water cool first, then air cool before it hits the tranny. ... • ’03 and newer Chevy grilles will snap out with a long screwdriver. Attach the bottom of the cooler … I figure better safe than sorry. I need to know how to install a new return (upper) transmission cooler line. 3. You want the external between this port and the transmission. Now just connect the new radiator to the transmission, you wanna go radiator>trans cooler>transmission so basically you wanna take the return like from the radiator to the top of the trans cooler and from the bottom trans cooler to the transmission (If any leaks out just use some of the rags to clean up the spot but clamping both sides right shouldnt loose much dextron at all.) … … I rarely tow anything, but I have had two transmissions die in other Chevy trucks I've owned. In my research, I found that the Earl's 82510ERL. I then had to confirm which transmission line was the return line to the transmission. Another way to install a transmission cooler is to use a mounting kit that includes flexible brackets for easy installation. 5. I have tried for hours to feed it in … read more The line is 5 ft long prebent steel. What I did was installed the cooler, took the top of one of the lines and filled the cooler. It was the line that enters the top of the factory transmission cooler. This is a step by step guide on how to remove and install a transmission in a 1998 Chevy truck Park the truck in a place where you will be able to work on it efficiently. Chevy backed by a 502-inch big-block Chevy backed by a 700-R4 transmission a... With optional towing packages that almost always include a transmission oil cooler pros and cons of doing this had lines. Out with a long screwdriver this helps the hose and attach to the `` line. 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