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This is sound advice, but how often does this site deal with late model anything? :dunno:

Isn't his truck now using a late model engine and trans with factory ECM and OBDII port? I believe it is relavent to his vehicle.

Correct, but the info I have found is very limited, I tried to make a custom gauge and it was picking up the engine temp.

In order to make a custom gauge you would need to seperate the two wires out of the trans harness to read the resistance across that temp probe. Then you would need to know the resistance at each temp interval to program the gauge. That is why its easier to use your phone or scan tool, unless you add a seperate sending unit to the gauge.
 
Isn't his truck now using a late model engine and trans with factory ECM and OBDII port? I believe it is relavent to his vehicle.



In order to make a custom gauge you would need to seperate the two wires out of the trans harness to read the resistance across that temp probe. Then you would need to know the resistance at each temp interval to program the gauge. That is why its easier to use your phone or scan tool, unless you add a seperate sending unit to the gauge.

I do have a obd2 scanner on my tablet, it's still picking up the coolant temp from the ecu
 
I do have a obd2 scanner on my tablet, it's still picking up the coolant temp from the ecu
Are you using Torque pro? Did you do this:
Settings -> Manage extra PID / Sensors -> Add predefined set -> choose GM set. Then you can do Transmission Fluid Temp ( GM Method 1) or Transmission Fluid Temp ( GM Method 2)
 
Are you using Torque pro? Did you do this:
Settings -> Manage extra PID / Sensors -> Add predefined set -> choose GM set. Then you can do Transmission Fluid Temp ( GM Method 1) or Transmission Fluid Temp ( GM Method 2)
Just remembered I'm using dash command.
 
Torque Pro is a $5 app and I have had no problem getting the trans temp from several vehicles with it. Worth the price.
 
I don't see the issue with a gauge just to have as info while you establish if it's good or not.. just remove it once you know your not going on melting trans parts.
 
I have no experience with Dash Command, but it looks like it would require similar steps but cost an additional $$$.
found this, and don't know if it's accurate, but you can take a look when you get home.
http://www.palmerperformance.com/forum/index.php?topic=9708.0
"Reply #1:
1 - Install DashCommand
2 - Set up a vehicle profile in DashCommand
3 - Enter the Data Grid screen
4 - Bring up menu and press Add PIDs
5 - Bring up menu and press Show All PIDs. Search for "trans"
6 - Check the tranmission fluid temperature PID. If it appears with a green dot it is supported. Red means not supported

Reply #2:
I looked and there is something with a green dot and a yellow lock that says:
GM.TRANS.TFT[*F,*C]
Transmission Fluid Temperature."
 
I don't see the issue with a gauge just to have as info while you establish if it's good or not.. just remove it once you know your not going on melting trans parts.

Part of my problem is heat related, if I can monitor the temps it could save another melted down trans.

Also when I get around to it I'll mount the tablet to the center of the dash. I ran all over blazer bash 14 with trail maps on the seat with extra gauges not mounted in the cluster.
 
Yes im sure it is, just doesn't feel right to be having to shift gears in a truck. If I was towing a lot of things then YES but for my application auto all the way.
 
Yes im sure it is, just doesn't feel right to be having to shift gears in a truck. If I was towing a lot of things then YES but for my application auto all the way.

I'm the other way around. I absolutely love my Allison for towing, the rest of the fleet is all manual transmissions.
 
The allison is a great trans, I even looked at it as a option to stick into this truck. It is very doable...
 
Looks like I can get the cooler mounted vertical in the grille just fine. I also set up the dash command app for the trans temp, I'll have to compare it with the GM Tech2 scanner for proper reading. Does anyone know where the ecm picks up the temp fluid at?
 
So just so that I am not confused , are you are mounting the cooler with the ports pointed at the ground?
So you can run the lines under the radiator support , or how?
 

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