Mishimoto Transmission Cooler-Installed!

Charles P. · February 24, 2020

Grabbed a Mishimoto Transmission cooler from amazon. Kit went together very well. The only issue I had was fat fingers and Retention clips (That part took me 3 hours, no joke)

Yes I know its slightly kilter-ed- No ones perfect.

Using new Transmission Fluid via TSB

Before: 1 Hour, 60mph highway 60°f Outside Temp = 180° - 190°f

After: 1.5 Hour, 60mph highway 67°f Outside Temp = 118° - 130°f

Noticeable change in shifting, as in... I feel Absolutely nothing now.

Transmission does not freak out after I've put my foot to the floor. (It was scary at times)

Overall, I'd buy again. Sad to say that only after doing the TSB Fluid change AND installing this, I feel much more confident in having this 8l90

Things to note if you want to do this:

Works for 2014+

Works for 6 Speed

Comes with a plunger to change the pump valve to full open

Comes with 2014 Model year Temp sensor move bracket

Make sure you have the new T.Fluid

Make sure you have a magnetic catch device (For retention Clips)

Remove your Air intake and housing

Check the Fluid after installing & running the truck to the point that the transmission temp is reading 120+

Fill the Transmission if necessary<--ONLY DO THIS WHILE ITS RUNNING

VanguardK2 · February 24, 2020

Looks awesome. I'll have to put this on the list

Sent from my SM-N975U1 using Tapatalk

truckmann · February 24, 2020

It does look nice with the fittings and brackets for a custom fit, but a Tru-Cool - Max LPD47391 and a trans thermostat mod is a lot cheaper if someone wants to get the same results for less.

Charles P. · February 24, 2020

1 hour ago, truckmann said:

It does look nice with the fittings and brackets for a custom fit, but a Tru-Cool - Max LPD47391 and a trans thermostat mod is a lot cheaper if someone wants to get the same results for less.

No Doubt about that.

IronVilkas · February 25, 2020

It does look nice with the fittings and brackets for a custom fit, but a Tru-Cool - Max LPD47391 and a trans thermostat mod is a lot cheaper if someone wants to get the same results for less.

What trans thermostat mod are you talking about?

Sent from my Pixel 2 XL using Tapatalk

truckmann · February 25, 2020

1 hour ago, IronVilkas said:

What trans thermostat mod are you talking about?

Sent from my Pixel 2 XL using Tapatalk

I can't seem to find a good link to share, but you can flip the plunger around in the thermostat which will keep it open and flowing through the cooler at all times. There are also a couple videos on youtube where they put a plug in the thermostat housing to achieve the same thing. I have a Tru-Cool cooler on my truck in place of the stock cooler in the condenser but I haven't done the thermostat mod so it still runs between 190-200. I doesn't ever get much over that though. I'm still debating on if I really want to do the mod.

I'd probably do something like this vs the simple mod since it's more purpose built solution. A bit pricey for what it is though. https://globaltransmissionparts.com/6l80-6l90-sure-cool-cooler-flow-system-stl010/?gclid=CjwKCAiAhc7yBRAdEiwAplGxX2L5OSS2MvEEW0B4-QUuULdshQgkpI63xfGpZwVecFIf-XS6ulwlchoCsnEQAvD_BwE