Low EOT reading - Ford Powerstroke Diesel Forum

 
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post #1 of 7 Old 05-18-2009, 01:55 PM Thread Starter
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Low EOT reading

Datalogged my truck on the highway today, when I started recording my ECT was 184* and my EOT was 137*.
Fifteen min later while still on the highway my ECT was 186* and my EOT was 128*.

I am guessing I need a new oil temp sensor. My question is what kind of symptoms are associated with a bad oil temp sensor?


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post #2 of 7 Old 05-18-2009, 03:36 PM Thread Starter
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post #3 of 7 Old 05-18-2009, 04:16 PM Thread Starter
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post #4 of 7 Old 05-18-2009, 04:43 PM
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elevated idle all the time.
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post #5 of 7 Old 05-18-2009, 05:30 PM Thread Starter
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I dont have elevated idle, but I thought eot and ect were only supposed to have 15-20* in varience.


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post #6 of 7 Old 05-18-2009, 08:31 PM
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eot should be higher than ect by no more than 20 degrees.
your oil temp is lower. safe to say bad sensor or blocked oil passage
near sensor.
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post #7 of 7 Old 06-04-2009, 07:21 AM
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Alwil as you know I'm having the same issues. Because of the low oil temp reading, I understand that the ECM will sense that the motor is still cold, and will cut fuel and timing, thus why I am having injectors cut out on me in the morning.

It doesn't elevate my idle because at idle in the driveway the temps are normal, as soon as I start driving and putting a load on it, my EOT drops. Even lower than yours.





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