- Joined
- Aug 7, 2007
- Messages
- 3,159
- Reaction score
- 38
- Points
- 48
- Location
- Farmington, Pa
- Vehicle Year
- 2019
- Make / Model
- Ford F250 4WD
- Engine Size
- 3.0
- Transmission
- Manual
Harris,
Have you ever replaced the thermostat?
It sounds to me as if your engine is not reaching operating temperature, which could very well affect your gas mileage. I'm willing to bet your tail pipe is pretty sooty, meaning it is running rich because the thermostat is stuck open, providing too much cooling REGARDLESS OF WHICH TYPE FAN YOU ARE RUNNING.
This time of year, I wouldn't even RUN the e-fan, unless I were sitting at stoplights in traffic and SAW the temp needle getting up near the A or L (of NORMAL). You'll absolutely get better MPG with the Temp at LEAST to the R or M.
I can look at the Scangauge, but IIRC, when mine just hits the letter M = 193* which is right where it is designed to operate. I'll try to remember to notice the Scanguage temp when it hits the O, but I'm betting it's in the 160's, because mine shows it's in the 130's as it comes off the low side peg toward the N.
I think you need a thermostat more than you needed that $8 e-fan.
Good work on the install though. You should see improved MPG once you install the temp switch set-up.
Have you ever replaced the thermostat?
It sounds to me as if your engine is not reaching operating temperature, which could very well affect your gas mileage. I'm willing to bet your tail pipe is pretty sooty, meaning it is running rich because the thermostat is stuck open, providing too much cooling REGARDLESS OF WHICH TYPE FAN YOU ARE RUNNING.
This time of year, I wouldn't even RUN the e-fan, unless I were sitting at stoplights in traffic and SAW the temp needle getting up near the A or L (of NORMAL). You'll absolutely get better MPG with the Temp at LEAST to the R or M.
I can look at the Scangauge, but IIRC, when mine just hits the letter M = 193* which is right where it is designed to operate. I'll try to remember to notice the Scanguage temp when it hits the O, but I'm betting it's in the 160's, because mine shows it's in the 130's as it comes off the low side peg toward the N.
I think you need a thermostat more than you needed that $8 e-fan.
Good work on the install though. You should see improved MPG once you install the temp switch set-up.