Normally the rig runs 186F to 194F.
When towing my trailer ~2000pounds (guess) this weekend the temps went to 228 in traffic and ran around 210-215 on the highway at an ambient temp of 95F and rolling at 60-70 MPH.
At low speeds (low gear climbing forest roads) it would get to 223/224F at 75F ambient.
I'm pretty sure my fan clutch has finally given out, considering I towed two jeeps (separate trips) on a U-Haul duelly this spring from 2 hours away and the temp never went over 200F. I figured those loads at around 4500#.
On my commute today (no trailer of course) temps were 186-194 just like normal.
I have 10K CTS oil on order and will change out the fan clutch fluid when it gets here.
My question.... should I also change out the fan? Given that its probably original, will the stress of the new oil creating additional air flow and RPMs on the blades possibly grenade the original poly fan?
When towing my trailer ~2000pounds (guess) this weekend the temps went to 228 in traffic and ran around 210-215 on the highway at an ambient temp of 95F and rolling at 60-70 MPH.
At low speeds (low gear climbing forest roads) it would get to 223/224F at 75F ambient.
I'm pretty sure my fan clutch has finally given out, considering I towed two jeeps (separate trips) on a U-Haul duelly this spring from 2 hours away and the temp never went over 200F. I figured those loads at around 4500#.
On my commute today (no trailer of course) temps were 186-194 just like normal.
I have 10K CTS oil on order and will change out the fan clutch fluid when it gets here.
My question.... should I also change out the fan? Given that its probably original, will the stress of the new oil creating additional air flow and RPMs on the blades possibly grenade the original poly fan?
Last edited: