E-Fans?? Pulleys??........

[jmwilso2]

I've decided that it is not the temp setting of the efan that is causing my low coolant temp. I pulled the fuse for the fan today and am still getting temps in the low 190s. I'm now thinking that my themostat is actually stuck partially open or is a cooler thermostat then is supposed to be in there I'm going to switch it out for a new one tomorow.

[Jackpine]

I'm fairly certain the stock thermostat is a 195 degree one. I personally would not use one colder than that. The engines are designed to operate in the low 200 degree region, and yes, when I'm just driving my truck on the highway in our "fall" temperatures in the high 80s, the CHT tends to stabilize around 205 degrees.

- Jack

[jmwilso2]

ok I guess mine is running about the same temp as yours then. I guess I'll skip swapping the thermostat for a new one.

Thanks for the help

Joe

[swiftvision]

Is there any need to get a new Gryphon program if you upgrade to E-fan and UD pullys?

[ticopowell]

Nope, but if you do the pulleys you might want to increase your idle speed by a bit to make sure your alternator still charges everything while idling.