Tranny cooler installation

[Egan]

Step 2: Break apart the line that runs inside the radiator. I had to use my sawzall because I couldn’t get the tubing cutter to spin due to space restrictions. The circles are for the black tube at the top and the silver tube at the bottom.



Here’s where I cut the lower one. Just turn it up to keep the fluid from running out:



The other end of the cut will run to the cooler. The black tranny line you see runs straight to the driver’s side of the stock cooler and was cut in Step 1:



No pictures of the cut at the top, but it should be straight forward. I connected the two radiator cuts together with some of the hose that came with the new cooler. This step is not really necessary, but others had done it and it provides a clean installation.

[Egan]

Step 3: Prep the new cooler by installing the NPTxbarb fittings:



Next, route the tubing to the new cooler location. The tube on the passenger side came from the lower cut shown in Step 2 and the tube on the driver?s side is connected to the end of the tubing that was cut in Step 1:

[Egan]

Step 4: Pop the cooler in place and secure it to the body. I had it pushed all the way over until it hit the mount for the power steering cooler. I used a sheet metal screw on the driver?s side because the cooler bracket fit flush, but I had to use one of the included straps on the passenger side:

[Egan]

Step 5: Close the hood and realize it won?t close! The cooler had to slide over towards the driver?s side by ? an inch or so. So I had to ?trim? the ps cooler bracket (thank you Mr. Dremel) to make it work. Fortunately, I didn?t have to redrill the hole on the driver?s side ? the bracket has 3 holes so I just used the one on the left instead of the one in the middle. For the passenger side, I added another hole and tweaked the bracket (it is what was hitting the hood):





Lastly, run the engine (after putting the airbox back together) and check for leaks.

[pdxrealtor]

Nice wright up...

Dude I warned in one of the recent threads the very issue you had. The hood not closing due to tight fit. Luckily I caught mine before things were bolted down. Sorry you didn't see it

For the power steering I just relocated the bottom mount (swung bottom towards driver side) and used a nut and bolt that came with the Trans cooler to secure it.

[Egan]

Originally Posted by pdxrealtor

Nice wright up...

Dude I warned in one of the recent threads the very issue you had. The hood not closing due to tight fit. Luckily I caught mine before things were bolted down. Sorry you didn't see it

For the power steering I just relocated the bottom mount (swung bottom towards driver side) and used a nut and bolt that came with the Trans cooler to secure it.

I saw your post, but everything looked like it lined up perfectly. It wasn't off much so it was no big deal to fix. You can see where the hood was hitting if you look to the lower right of the last picture. Just above the bolt you'll see two small parallel scratches. It was really modifying the bracket that fixed it more than sliding the whole cooler towards the driver's side.

[timmy1909]

I just ordered a Trans cooler from Flex-o-lite (4120) Overall dimensions of 7 1/2" x 20" x 3/4". It appears to be very close to the same dimensions as the Unit you are all using but it cost me $53 shipped from summit. Not as thick not as wide and not as tall... but I don't tow anything with my H2... I just dont want to have coolant mix with the trans fluid... I will install it this weekend and let you know if it works. I have noted my currant trans temps and will see if there is any difference.

New to the Forum by the way... just bought my 03 H2 this week... So far I love it!!! have been trolling around here to get some Ideas and came across the stock trans cooler issue. I work at a GM dealership and the Techs there never heard of that issue... but they are going to pass it along to their H2 customers.