Coolant overheating while towing?

[willys 41]

I was aware

I upgraded my tazer firmware yesterday to get the Cooldown feature and drove around town and highways for couple of hours with the fan at 100%. With 105 ambient temp here in PHX, I never went above 185 degrees on the coolant temp. One interesting discovery. The way Tazer tricks the system into turning on the fan to 100% is by spiking the transmission temp to 250 degrees which triggers the fan to run at 100%. It's a fake spike because the second you turn off Cooldown mode, tranny temps immediately drop to sub 200.

I upgraded my tazer firmware yesterday to get the Cooldown feature and drove around town and highways for couple of hours with the fan at 100%. With 105 ambient temp here in PHX, I never went above 185 degrees on the coolant temp. One interesting discovery. The way Tazer tricks the system into turning on the fan to 100% is by spiking the transmission temp to 250 degrees which triggers the fan to run at 100%. It's a fake spike because the second you turn off Cooldown mode, tranny temps immediately drop to sub 200.

I was aware of the tazers ability to run the rad. fan at high speed put I chose to go with the RPM fan controller.
I looked at it as kinda a band-aid to a problem
The RPM fan controller is an install and forget it fix.

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[Stan H]

I was aware


I was aware of the tazers ability to run the rad. fan at high speed put I chose to go with the RPM fan controller.
I looked at it as kinda a band-aid to a problem
The RPM fan controller is an install and forget it fix.

Link for the RPM fan controller?

 

[willys 41]

Link for the RPM fan controller?

http://www.rpmextreme.com/Product/311/Jeep-JL-PWM-FAN-CONTROLLER.aspx

 

[PuddleJumper]

When I replace my 600 watt fan with the 940 watt fan I remove the 600 watt fan motor and keep it in my jeep along with other spare parts.
Its fairly small and easy to store.

good to know. link to the 940 part? or do some of us already have it?

 

[PuddleJumper]

I upgraded my tazer firmware yesterday to get the Cooldown feature and drove around town and highways for couple of hours with the fan at 100%. With 105 ambient temp here in PHX, I never went above 185 degrees on the coolant temp. One interesting discovery. The way Tazer tricks the system into turning on the fan to 100% is by spiking the transmission temp to 250 degrees which triggers the fan to run at 100%. It's a fake spike because the second you turn off Cooldown mode, tranny temps immediately drop to sub 200.

yeah see i didn't know it falsified the trans temp. So when i was using it on the beach I bout shit a brick cus offroad pages said my trans was 250. Thought i blew the trans towing my camper on the beach lol.

 

[willys 41]

good to know. link to the 940 part? or do some of us already have it?

Here is a link to upgrading to larger fans and what is needed.
if you don't already have the 850 set up you will need to upgrade your alternator to a 240 amp and the Z-fuse.

https://www.rubitrux.com/jeep-wrang...3JbWa0y9MoOqhsTC0-TEqy-15-A6nT7jHzN7Cx8BAZ7Ur

The 940 is for the 2.0 and Diesel put it the same housing as all the others and will fit all wrangler and gladiators .

 

[PuddleJumper]

Here is a link to upgrading to larger fans and what is needed.
if you don't already have the 850 set up you will need to upgrade your alternator to a 240 amp and the Z-fuse.

https://www.rubitrux.com/jeep-wrang...3JbWa0y9MoOqhsTC0-TEqy-15-A6nT7jHzN7Cx8BAZ7Ur

The 940 is for the 2.0 and Diesel put it the same housing as all the others and will fit all wrangler and gladiators .

I have the HD tow package on my mojave so i have the 240 amp and most likely the 850w.

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