Mishi Moto transmission cooler

[Vengeance_Racing]

I just went through a transmission at 100,000 miles and installed a new monster transmission. My trans temps still stayed at 196-205 all the time. So I installed a Mishimoto transmission cooler kit. Now my temperatures have been staying around 106 if I’m driving 55-60 mph. And 125 on the interstate running 90 mph. Of course the ambient temperature right now is 35 degrees. Haven’t tested it towing yet but my old transmission would hit 220 on the interstate. So my question is, is my temperatures to low now?

[truckguy82]

What motor/truck do you have?

[Vengeance_Racing]

2014 Silverado 1500 4x4 5.3L

[Snowcamo]

You want the trans at or approx 175°F thats a good temp.

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[Vengeance_Racing]

I know what a good temp is. That wasn’t my question lol

[Snowcamo]

If you know what a good temp is then you should know the answer to your question.

Yes it too low... Have a great day.

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[TXGREEK]

I just went through a transmission at 100,000 miles and installed a new monster transmission. My trans temps still stayed at 196-205 all the time. So I installed a Mishimoto transmission cooler kit. Now my temperatures have been staying around 106 if I’m driving 55-60 mph. And 125 on the interstate running 90 mph. Of course the ambient temperature right now is 35 degrees. Haven’t tested it towing yet but my old transmission would hit 220 on the interstate. So my question is, is my temperatures to low now?

Unless you’re asking if anyone has experience with your product, this is a question better answered by the manufacturer of the cooler you’ve purchased it from


Sent from Above

[truckguy82]

So the reason your trans went and the reason it hit 220 on the interstate is because your trans thermostat was stuck closed. The thermostat regulates the trans temp from 190-200 in all conditions. The factory cooler is adequate for 99% of people.

 

So basically you deleted the thermostat and you installed a more powerful cooler when the oem cooler was more than adequate.

 

The best way to solve your issue is to reinstall the factory trans thermostat.