Where are the ECT/EOT sensors located? - Diesel Forum - TheDieselStop.com
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6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

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Old 02-19-2011, 09:20 PM   #1 (permalink)
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Where are the ECT/EOT sensors located?

Where exactly is the ECT monitored in relation to the oil cooler and coolant path? Same for the EOT, is it pre or post cooler? I ask because I see a much larger delta (11-13 compared to 7-8) if I cruise at 75 compared to 65 mph, loaded or unloaded. I'm wondering if my original 03 water pump might have some cavitation issues or loss of pumping capacity. My oil cooler is probably due for replacement but I'm still curious where exactly my Insight is pulling the data from.
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Old 02-19-2011, 10:00 PM   #2 (permalink)
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Your ECT sensor (03 model) is just to the left of the thermostat housing on the front cover (looking at the engine from the front of the truck).
The EOT sensor is on the oil filter base . If you can find where the coolant hose for the egr cooler connects on that cover, the sensor is closer to the oil filter housing than that hose connector. The "oil pressure switch" is also located in that same area. The EOT has a larger oblong rectangle connector.
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Old 02-20-2011, 08:39 AM   #3 (permalink)
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I believe the EOT has two wires and oil pressure switch has one wire??
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