Are these temps ok?
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Freshman User
Joined: Nov 2012
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From: North Texas
Are these temps ok?
Went camping last weekend pulling my 12000 lb 5th wheel. 99-101 degrees out. ECT went between 210 - 220, EOT between 220 - 230. Deltas between 9 to 16 for short periods, but averaged 13-14.
When not towing temps dropped to ECT between 198-210, EOT between 205 - 220, average deltas 9-13.
I have an extended warranty and wondering at what point I can argue with them to get new oil cooler.
When not towing temps dropped to ECT between 198-210, EOT between 205 - 220, average deltas 9-13.
I have an extended warranty and wondering at what point I can argue with them to get new oil cooler.
Laughing Gas
Joined: Nov 2014
Posts: 765
Likes: 5
From: Long Island, NY
I am guessing your numbers are 210-220 for ect and 220-230 for eot when towing.
198-205 ect and 210-215 eot when not towing.
"deltas" should be checked under specific conditions, full operating temp, 65 mph on flat ground and unloaded vehicle. I have read reference to 1800 engine rpm, not 65 mph but they are close and this will differ slightly depending on gearing.
Anyway, the "delta" during towing can not be used to gauge the health of an oil cooler.
With that said, the Ford spec is a spread of 15 degrees from ect to eot under test conditions. Based on your "not towing" numbers you are within spec if that was under the test criteria.
You may have some cooling system issues as your temps seem a bit higher than usual but the spread seams within range for now.
198-205 ect and 210-215 eot when not towing.
"deltas" should be checked under specific conditions, full operating temp, 65 mph on flat ground and unloaded vehicle. I have read reference to 1800 engine rpm, not 65 mph but they are close and this will differ slightly depending on gearing.
Anyway, the "delta" during towing can not be used to gauge the health of an oil cooler.
With that said, the Ford spec is a spread of 15 degrees from ect to eot under test conditions. Based on your "not towing" numbers you are within spec if that was under the test criteria.
You may have some cooling system issues as your temps seem a bit higher than usual but the spread seams within range for now.
Senior User
Joined: Jan 2004
Posts: 188
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From: South of Tucson
I towed 13000 fifthwheel from Tucson Arizona to Tampa Florida and I got similar EOT temperatures. I got to 230 once coming out of Tucson and 235 once somewhere east of Dallas Texas, each time these EOT was high for just a few minutes. What I did notice, during the trip, my EOT would vary a lot and I think that shows the oil cooler is working well.
Fleet Mechanic
Joined: Jul 2013
Posts: 1,330
Likes: 65
From: 'Pitlock, Maine
Went camping last weekend pulling my 12000 lb 5th wheel. 99-101 degrees out. ECT went between 210 - 220, EOT between 220 - 230. Deltas between 9 to 16 for short periods, but averaged 13-14.
When not towing temps dropped to ECT between 198-210, EOT between 205 - 220, average deltas 9-13.
I have an extended warranty and wondering at what point I can argue with them to get new oil cooler.
When not towing temps dropped to ECT between 198-210, EOT between 205 - 220, average deltas 9-13.
I have an extended warranty and wondering at what point I can argue with them to get new oil cooler.
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 25
From: Middle Tn.
The op is borderline but in spec. Depending on his relationship with his dealer they may change it. Mine did. Some here have run 11 to 13 degrees spread for years and it never got worse. If he has the esp he can throw his worse numbers at the SA and see if they will do it. Nothing to lose.
Senior User
Joined: Mar 2014
Posts: 309
Likes: 0
From: Ohio
Went camping last weekend pulling my 12000 lb 5th wheel. 99-101 degrees out. ECT went between 210 - 220, EOT between 220 - 230. Deltas between 9 to 16 for short periods, but averaged 13-14.
When not towing temps dropped to ECT between 198-210, EOT between 205 - 220, average deltas 9-13.
I have an extended warranty and wondering at what point I can argue with them to get new oil cooler.
When not towing temps dropped to ECT between 198-210, EOT between 205 - 220, average deltas 9-13.
I have an extended warranty and wondering at what point I can argue with them to get new oil cooler.
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Freshman User
Joined: Nov 2012
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From: North Texas
I was running between 189 and 193 last winter so I don't think it's a 200 degree Mishimoto.
I'm going to keep an eye on it while towing this summer.
thanks to everyone for all the advice.
I'm going to keep an eye on it while towing this summer.
thanks to everyone for all the advice.
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