A person with minimal automotive skills can install a transmission oil cooler in a couple of hours or less. 5. Do you have any suggestions on a brand names or pros and cons of doing this. On a Chevrolet truck or car running a V6 or V8 engine, a set of transmission cooler lines typically runs from the front of the vehicle by the radiator into the transmission. Slide the transmission forward … Some trucks that didn't come with the towing package may already have the plumbing to install … I installed a transmission cooler on my 97 Tahoe. As the transmission is raised into position, slide it over the dowel pins. Transmission Cooler Install- How I did Mine With the help of other members suggestions in another thread, I finally got my cooler installed. 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. Water cool first, then air cool before it hits the tranny. 6. The best way to insure your transmission does not overheat is to install an auxiliary (secondary) transmission oil cooler. Heat is a transmissions worst enemy. We install a B&M SuperCooler transmission cooler on a 2004 Chevy Avalanche 1500. We install an upgraded transmission cooler from Pacific Performance Engineering to help keep our Allison transmission cool! I was looking for a way to upgrade my factory transmission cooler to one that cooled a little better. You want the external between this port and the transmission. 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. Install Time: 1 hour ... Stock 2008 Chevy 2500HD, LMM w/Allison 6-speed auto transmission, short bed 4x4 w/crew cab and LTZ trim The line coming out of the top of the radiator is the return. I figure better safe than sorry. I have neither cooler, but there is a circuit in the radiator. The installation will vary by application and may require additional threading adapters. I have a 2003 Chevrolet Avalanche 1500 4wd, 5.3L. This small radiator helps to cool the transmission fluid in the same way the radiator drops the temperature of coolant for the engine. Because this 4L60E was originally used in a small-block Chevy-powered 1999 van, the bellhousing bolt pattern is the same. 4. A restricted and/or contaminated transmission cooling system is the #1 cause of transmission failure after a replacement. 1/8 of a quart or so. Here is the line that goes to the "return line" to the transmission. he didnt use the Hayden 397 plug at all. Next, install it on the return side, after the factory cooler. That's what he told me he removed. It is wise to install an external cooler for it. I am installing a new transmission cooler so I will not need to remove these fittings, however, if you are only replacing the cooler lines and not the cooler then these two OEM fittings on the auxiliary transmission cooler will have to be removed in order to install the new JIC fittings with the hydraulic line kit. After you've chosen your transmission cooler, it's time to install it. Attach the bottom of the cooler … … Most trucks these days come with optional towing packages that almost always include a transmission cooler. Another way to install a transmission cooler is to use a mounting kit that includes flexible brackets for easy installation. Install the transmission fluid cooler inlet and outlet pipe (3) in the transmission. This makes it easier if the cooler has mounting points designed for brackets – but your vehicle must have good mounting points, too. Since the biggest killer of automatic transmissions is heat, it won't hurt to install a cooler. Let’s start with installing the trans. 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.) Use the adjusters on the transmission jack to keep the transmission well aligned with the engine. 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. 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. I have tried for hours to feed it in … read more Transmission lines are pressure lines, and without that barbed fitting you can blow a line off and drain your transmission (not good!). It was the line that enters the top of the factory transmission cooler. • 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. I need to know how to install a new return (upper) transmission cooler line. The package included longer lines, allowing us to mount the cooler to our liking. Transmission cooler kits usually come with all the necessary tools, hardware and directions to install it yourself. I mounted my transmission cooler on the bumper using "L" brackets and tek screws. Its not necessary. In my research, I found that the Earl's 82510ERL. Install the transmission fluid cooler inlet and outlet pipe bolt (2) and tighten to 22 Nm (16 lb ft). The cooler lines out of the transmission run to a thermostatic valve that's located near the bottom of the radiator. Transmission Line T-fitting Adapters are available to “T” into your Transmission Cooler Line for an effortless install. Put the clamps on the hose and attach to the cooler (tighten clamps) 6. To showcase a typical install, we acquired a Hayden universal transmission cooler kit from Gearstar Transmissions. 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. When I dod my cooler I had new lines ran. 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. 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. 3. How-To: Install a Transmission Cooler. 4. 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. I then took it to a local transmission shop, and they installed both for $200. If you do you will notice VERY little transmission fluid actually goes inside the cooler. 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. New Flex-a-lite Transmission Cooler. The normal operating range of the 6L80 is 160-200 degrees. 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. When to Consider a Transmission Cooler . I rarely tow anything, but I have had two transmissions die in other Chevy trucks I've owned. The transmission has been run on Phoenix Transmission's dyno, so it's tested and ready to install. How to install a transmission cooler in your Colorado 3.5. This reduces the heat being introduced to the radiator, which is usually where the factory cooler is located. 5. ... • ’03 and newer Chevy grilles will snap out with a long screwdriver. Install them just above the dowel pins on each side of the engine block. Install the transmission fluid cooler inlet and outlet pipe clip (4) in the range selector lever cable bracket. When he decided to install … The line is 5 ft long prebent steel. 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). I then had to confirm which transmission line was the return line to the transmission. chevy: im thinking of putting a transmission oil cooler and gauge I'm thinking of putting a transmission oil cooler and gauge on my 07' chevy hhr. 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. What I did was installed the cooler, took the top of one of the lines and filled the cooler. … 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. Being a not-so-handy guy, I decided to pay someone to install a new transmission cooler and fan. 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 Apply a bit of CVT fluid to the inlets of the cooler (this helps the hose slide on better. Place the foam pads on the back of the 4 corners of the cooler (supplied with cooler) 7. I purchased the transmission cooler (it's about 12x12 inches), and a fan to mount over the front of it from NAPA auto parts. Jump to Latest Follow ... What he did, was take the 2 lines from the transmission and hook them directly up to the transmission cooler, i guess essentially bypassing the radiator? First, due to some fabrications of the front crash bar for clearance issues, this may not be for everyone. Just fill the cooler with transmission fluid before installing the lines. 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