EOT question

[f-250_LARIAT-2000]

My delta's usually run around 2-3 degrees, but lately i have noticed that at times my eot will drop to 167. What's up with that? I would think if my oil cooler was getting plugged it would go up not down

[Boreal]

What is your ECT reading at when EOT drops that low? If ECT is still ~190, I'd guess bad sensor?

[f-250_LARIAT-2000]

Yes, ect stays the at normal temp.

[f-250_LARIAT-2000]

I was hoping it is not the oil cooler, anyone else have this happen?

[Galaxie]

Durring regular driving dropping down that much? Bad sensor.

[f-250_LARIAT-2000]

I was hoping it would be something like that, guess i will give that a try. Thanks guys!

[Face Down]

So...was that the problem?? I just had the same thing happen, EOT dropped to 165, ECT 188-192.