MPG drop - Ford Powerstroke Diesel Forum
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Old 05-06-2014, 03:26 PM Fanatic

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MPG drop

My truck used to get about 18.5-19.5 mpg, while my daily commute was 32 miles, and about 95% highway. I now get around 14.5-15 mpg. I moved and my commute is now 6 miles, all city stop and go. I know there would be a difference between city and highway, but I didn't think it would be that drastic. Can the EBP sensor cause a reduction in MPG even though I have the EBPV unplugged at the turbo? The sensor was replaced last summer, and I cleaned the tube from the manifold at that time. Actually, I took it off and inspected it, but it didn't need cleaned. So can my fuel economy drop be completely contributed to my change in commute, or should there be something else I should check. I see no fuel leaks either
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Old 05-06-2014, 03:31 PM
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Whats the old rule...a body in motion tends to stay in motion... when your out runnin down the highway your truck is not using the extra force to get that weight into motion. Stop and go is just brutal on mpg's.
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Old 05-06-2014, 03:50 PM
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I had the same type thing happen to me last year and it turned out to be a sticky rear caliper. I track my mileage religiously and noticed a definate step change in MPG's but couldn't figure out why.

When I had a sticky front caliper (on another occasion), it was obvious because the truck tended to pull to one side but I never noticed the rear until I caught a whif of "hot brakes" when I pulled into my driveway. My rear wheel was so hot, I couldn't put a hand on it! It could have led to a blow out!

Now, I periodically walk around my truck and touch each wheel near the hub while gassing up.
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