Coolant and Trans Temps while towing questions???

[DzlNut]

I have been towing my rv (24 ft bumper pull) the last few weekends and my CTS says around 215 deg F (coolant) and 185 (trans). I bought this truck last fall and have not towed during the hot 100 deg weather. Do you guys think the temps are ok? The temps go higher sometimes on the hills, then the fan locks up and cools it down. I put new thermostats in when I did my headgaskets last fall. The truck runs freakin awesome and pulls like a freight train no complaints there. I am just wanting to know if that is where the 6.0 likes to run.

[amdriven2liv]

Those temps look like mine when towing my 26.5 ft TT.

How was the EOT? I have seen mine at 234* while towing at 95* on very long 6% grade in Central Oregon.

[DzlNut]

Thanks Sean, yep my eot was about the same as yours.

[southend]

Read this......Write Up: Monitoring the 6.0L PSD.

Sent from my SCH-I500

[06-6.0 stoker]

I pull a 24x 8.5 bumper and mine get up to 210 and 180


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[DzlNut]

Cool Thanks...

*Engine Coolant Temp: Coolant temp. Normal 190-200*, Heavy Service 200-215*, Alarm Set 230*. If you are seeing temps under 185*, you may be seeing a thermostat that has failed open. While not a condition that will damage the motor, these trucks operate more efficiently at the 190-200* range.

*Engine Oil Temp: Oil temp. Normal 5-15* above ECT when at operating temperature. Engine will defuel at 254* and go into limp mode. This is the critical value to watch, as it relays the health of your oil cooler. A spread of 15* or more between the ECT and EOT is the threshold for an oil cooler replacement/rebuild.

Transmission Temp: Good to keep an eye on, as the stock gauge in the dash is an idiot light at best. Normal 150-190*, Towing 195-210*, Alarm 220*.