Transmission temp

[Jcantu2187]

Whats up guys i drive a 2015 silverado z71 single cab and for some reason the transmission temp is at 24x when pulling my travel trailer.. ive done the thermostat mod and added a transmission cooler to it and it doesnt help a bit.. has anybody had any issues like this

[SARNCAN]

Whats up guys i drive a 2015 silverado z71 single cab and for some reason the transmission temp is at 24x when pulling my travel trailer.. ive done the thermostat mod and added a transmission cooler to it and it doesnt help a bit.. has anybody had any issues like this

Assuming that the thermostat mod was done right, and the transmission cooler is working probably, maybe trans fluid is already in a bad condition.
Other thought is that cooler capacity is not high enough for your need.
Just assumptions.

[PPK]

Mine rarely pushes 190. What altitude and how much weight?

[Jcantu2187]

Well the transmission has been rebuilt due to a bad converter so the transmission fluid should be new but idk what could be the problem.. my travel trailer weight 3,000 lbs  barely feel it when towing it

[truckguy82]

Feel the passenger side line of the trans cooler.

 

if it’s ambient temp it means your not getting any, or barely any, flow through the trans cooler

 

if it’s very hot, just like the drivers side, it means you are getting flow and your trans is messed up.

[Jcantu2187]

22 minutes ago, truckguy82 said:

Feel the passenger side line of the trans cooler.

 

if it’s ambient temp it means your not getting any, or barely any, flow through the trans cooler

 

if it’s very hot, just like the drivers side, it means you are getting flow and your trans is messed up.

Ill check it out thanks

[flyingfool]

whats it run without trailer? 

 did you install the bipass plug after you deleted the thermostat?

[Black02Silverado]

Were are you getting your reading?  Off the OBD II port?  It might be reading wrong.  Can always check with and IR thermometer.

 

 

[Jcantu2187]

2 hours ago, flyingfool said:

whats it run without trailer? 

 did you install the bipass plug after you deleted the thermostat?

220 more or less at 100 degree weather

Edited July 22, 2020 by Jcantu2187
Typo

[Jcantu2187]

1 hour ago, Black02Silverado said:

Were are you getting your reading?  Off the OBD II port?  It might be reading wrong.  Can always check with and IR thermometer.

 

 

Reading off the little screen on the cluster

[Jcantu2187]

19 hours ago, truckguy82 said:

Feel the passenger side line of the trans cooler.

 

if it’s ambient temp it means your not getting any, or barely any, flow through the trans cooler

 

if it’s very hot, just like the drivers side, it means you are getting flow and your trans is messed up.

So i drove for a little bit not very far so i just got the temp around 140 or so and checked the line.. well it did feel hot

[SARNCAN]

220 more or less at 100 degree weather

That is already too much without towing!
And you said yours already have got trans cooler + thermostat mod

[Black02Silverado]

9 minutes ago, Jcantu2187 said:

Reading off the little screen on the cluster

If you can, just to double check, find an IR thermometer.  They are not expensive and cool to have to check temps on other things.  Like AC vents and such to make sure it is working well, in the car and at the house.

[Jcantu2187]

8 minutes ago, SARNCAN said:

That is already too much without towing!
And you said yours already have got trans cooler + thermostat mod

Yes its got both

[Jcantu2187]

4 minutes ago, Black02Silverado said:

If you can, just to double check, find an IR thermometer.  They are not expensive and cool to have to check temps on other things.  Like AC vents and such to make sure it is working well, in the car and at the house.

Ok ill look for some