5 speed trans upgrades
Senior User
Joined: Aug 2016
Posts: 158
Likes: 2
That is concerning, the 4.9 usually is the mileage king in full size pickups, most folks getting at least in the teens. I've got 2, an '87 and a '96, & while I haven't locked it down to a number, it is to the point where buying gas is almost forgettable.
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New User
Joined: Nov 2017
Posts: 16
Likes: 0
your telling me ive only driven 112 miles and ive used a little over 3/4 of a tank
Logistics Pro
Joined: Aug 2010
Posts: 3,716
Likes: 583
From: Chillicothe
if start there, not sure if that sensor has so much of an effect, but if its showing bad put a new one in
Senior User
Joined: Aug 2016
Posts: 158
Likes: 2
The ECU uses the air intake sensor to read incoming air temp. If the sensor is bad and/or is in the stream of hot air, it may make the motor divert to preset rich fuel map (poor performance) to reduce detonation, that could seriously reduce MPG
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
In the future, you should know that going by the gas gauge on the dash to calculate or even estimate mileage is a complete waste of time. You hand calculate it by measuring miles and gallons or it's not worth doing at all.
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Cargo Master
Joined: Mar 2010
Posts: 3,328
Likes: 292
From: Laramie, WY
Sounds like the crossflow fuel problem to me. Two separate tanks?
In the future, you should know that going by the gas gauge on the dash to calculate or even estimate mileage is a complete waste of time. You hand calculate it by measuring miles and gallons or it's not worth doing at all.
In the future, you should know that going by the gas gauge on the dash to calculate or even estimate mileage is a complete waste of time. You hand calculate it by measuring miles and gallons or it's not worth doing at all.
https://www.ford-trucks.com/forums/1517867-96-f150-4-9-poor-mpg-issue.html
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New User
Joined: Nov 2017
Posts: 16
Likes: 0
Sounds like the crossflow fuel problem to me. Two separate tanks?
In the future, you should know that going by the gas gauge on the dash to calculate or even estimate mileage is a complete waste of time. You hand calculate it by measuring miles and gallons or it's not worth doing at all.
In the future, you should know that going by the gas gauge on the dash to calculate or even estimate mileage is a complete waste of time. You hand calculate it by measuring miles and gallons or it's not worth doing at all.
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