ECT and EOT, Concerns
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Cross-Country
Joined: Nov 2005
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ECT and EOT, Concerns
Ok...I am worring myself to death about my EOT and ECT temps.
I live south of Denver at 6,000 feet above sea level. Most of my driving with my 2005 6.0PSD Excursion is towing my 7500# TT at 6,000 feet or above. I am headed to the OR coast this summer and so have started preparing the truck. Maintenance is perfect...I am religeous about all maintenance proceedures.
Here is my question:
My ECT generally runs between 5-15 degrees cooler than my EOT. However, occaisionally, the two may be 15-20 degrees apart generally when traveling down hill from the mountains. It doesn't last long, but it does happen. Does elevation affect these two areas of the truck?
Additionally, my Edge Evolution Alerts are set above those alerts discussed in the 6.0PSD Excel research doc that has been traded around. Specifically:
EOT: Edge = 250, FTE advice = 235
ECT: Edge = 230, FTE advice = 220
EGT: Edge = 1350, FTE advice = 1300
The truck runs smooth and strong. No coolant barfing. No hesitation. All appears to be working smoothly.
Thoughts on my ECTvsEOT question?
Thoughts on my Edge Evolution Alerts? Should I adjust them down?
Thanks in advance for your comments and expertise.
CARMK
I live south of Denver at 6,000 feet above sea level. Most of my driving with my 2005 6.0PSD Excursion is towing my 7500# TT at 6,000 feet or above. I am headed to the OR coast this summer and so have started preparing the truck. Maintenance is perfect...I am religeous about all maintenance proceedures.
Here is my question:
My ECT generally runs between 5-15 degrees cooler than my EOT. However, occaisionally, the two may be 15-20 degrees apart generally when traveling down hill from the mountains. It doesn't last long, but it does happen. Does elevation affect these two areas of the truck?
Additionally, my Edge Evolution Alerts are set above those alerts discussed in the 6.0PSD Excel research doc that has been traded around. Specifically:
EOT: Edge = 250, FTE advice = 235
ECT: Edge = 230, FTE advice = 220
EGT: Edge = 1350, FTE advice = 1300
The truck runs smooth and strong. No coolant barfing. No hesitation. All appears to be working smoothly.
Thoughts on my ECTvsEOT question?
Thoughts on my Edge Evolution Alerts? Should I adjust them down?
Thanks in advance for your comments and expertise.
CARMK
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Joined: Jan 2009
Posts: 1,321
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From: Mattawa Washington.
The difference is taken under normal driving after everything is warmed, pulling hills or heavy loads you will see bigger spread between the two. Constant diff. of 15 or more degree is a good indication of the oil cooler starting to plug.
I would set the alarm for egt. at 1,200. above that is pushing it pretty hard. jmo.
I would set the alarm for egt. at 1,200. above that is pushing it pretty hard. jmo.
Lead Driver
Joined: Sep 2007
Posts: 8,180
Likes: 669
From: Scio, OR
When I was cruising around pulling big long grades in and around Death Valley (at 115 degrees outside), I noticed that as I pulled the hill, the ECT and EOT would go up together, remaining within 15 degrees. When I broke the hill and headed down, the ECT would drop fast and the EOT would trail somewhat behind and I'd get higher spreads during that time.
I figured since the coolant cooler (radiator) was many feet square, and the oil cooler was only many inches square, that this was probably a normal condition.
As long as your spread is normal on flat ground with everything all warmed up, I wouldn't worry. Your ECT should be in the normal range to get an accurate reading on the differential, though. If your thermostat is stuck and you're running below 190, I don't think the measurements mean as much.
I figured since the coolant cooler (radiator) was many feet square, and the oil cooler was only many inches square, that this was probably a normal condition.
As long as your spread is normal on flat ground with everything all warmed up, I wouldn't worry. Your ECT should be in the normal range to get an accurate reading on the differential, though. If your thermostat is stuck and you're running below 190, I don't think the measurements mean as much.
