coolant temps while towing
Tuned
Joined: Aug 2008
Posts: 301
Likes: 3
When towing my 11,000# 5th, my coolant temp runs around 200 (oil is a constant 11 degrees hotter). The coolant will go as high as 225 while pulling a hill. I suspect that I need to test my fan, since I rarely hear it kick in.
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More Turbo
Joined: Apr 2011
Posts: 627
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From: Western Connecticut
When towing my 6k TT, on the level @ 65mph, the ECT runs 185-192 deg. The EOT traditionally 9-12 deg hotter. Those values jump up when hitting steep hills with a long pull.
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From: Oregon
Tousley Ford Parts Depotpop
Senior User
Joined: May 2007
Posts: 279
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From: Central Texas
Any ideals on how to testing the Fan. after installing a new rad and doing a flush I pulled my 11k 5er about 40mi. The ect was running 215 t0 220 and the eot was 220 - 228. As i monitored it with my AE. I never heard the fan run wide open as i have in the past.
Lead Driver
Joined: Sep 2007
Posts: 8,180
Likes: 669
From: Scio, OR
It's easy if you have AE. Monitor the engine RPM and Fan Speed PID. Use the activation menu to raise your engine RPM to 1200, then activate the fan to 100%. You should see the fan speed go up higher than engine RPM. Then activate fan speed to 0% and it should slow down well below engine RPM.
Hotshot
Joined: Aug 2006
Posts: 17,399
Likes: 318
From: Whittier, CA
Those are pretty good temps. I usually barely start to hear my fan at about 217-219 ect, so you might just be in really good shape. Still, since you've got the AE, might as well use it and test the fan op.
Senior User
Joined: May 2007
Posts: 279
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From: Central Texas
At what temps should I become worried. I have a 600 mi trip comming up and Pulling this kind of load is new to me so I am not sure what to expect. I am so used to hearing the fan and that may be due to stopped up radiator that it seams strange not hearing it kick in often. My AE softwear is messed up right now cause i down loaded the new 9.1 ver and did not know I needed a new Lic num so it may be Monday befor i have it up and going.
Posting Guru
Joined: Nov 2008
Posts: 1,458
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From: CA Sacramento
Give us some scenarios.
Unloaded I hit 210 at rare times durring the summer. Towing 10,000lbs with innovative stree tune, my max so far was a little more than 215 but not 220 at ~70*