FUEL computer!
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Junior User
Joined: Dec 2003
Posts: 96
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FUEL computer!
Just recieved my F350 and love it have a question about fuel computer in overhead console?? It doesnt tell me how many miles I have left on the tank of gas!! Read owners manual and states it takes average of 500 miles and computes !! Does this mean that I need 500 miles on the truck for it to work? I have 100 miles on it right now. Does anyone know if this is normal ?? Or is there a problem? Thanks
Post Fiend
Joined: Oct 2002
Posts: 11,314
Likes: 4
Whatever you do, don't believe the overhead...
it is just a VERY ROUGH estimate ---
but it should have a miles too empty and an avg mpg settting...
and if you do the old hand calc method you will see the OH is not trustworthy...
it is just a VERY ROUGH estimate ---
but it should have a miles too empty and an avg mpg settting...
and if you do the old hand calc method you will see the OH is not trustworthy...
Senior User
Joined: Jan 2004
Posts: 160
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From: Washinhton
No you don't have to wait 500 miles. The computer should work right off the bat.
You need to use the buttons to scroll thru the different readings.
Button on the driver side scrolls thru the different readings - i.e. temp, averge MPG, miles remaining. Button on the passenger side chages the reading from SAE/US to Metric.
You need to use the buttons to scroll thru the different readings.
Button on the driver side scrolls thru the different readings - i.e. temp, averge MPG, miles remaining. Button on the passenger side chages the reading from SAE/US to Metric.
Junior User
Joined: Oct 2003
Posts: 92
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It may take a tank of fuel or so for the computor to achieve an average to be able to report. Yea, it is kind of strange isn't it that the overhead is always reporting better fuel mileage than you are actually getting ..... I wonder if this may have been done intentionally? ... false advertising for sure ...
Got Diesel?
Joined: Jan 2004
Posts: 4,345
Likes: 21
I just got back from a 900 mile business trip and here are my mileage findings since getting latest flash. Just did 15,000 mile service at 12,300 (last week).
1) Had December (or maybe Jan) reflash - not sure which yet (done last week).
2) Highway mileage was 17MPG (cruising at 70MPH). Vehicle was empty and towing nothing.
3) Hand computed mileage was within .5/mile (so it was the same as overhead console). Guess I'm lucky to have one that works???
4) Running #2 diesel with Power Service anti-gel (white bottle) for winter.
5) Day and night temps = (between 28 - 40 F).
1) Had December (or maybe Jan) reflash - not sure which yet (done last week).
2) Highway mileage was 17MPG (cruising at 70MPH). Vehicle was empty and towing nothing.
3) Hand computed mileage was within .5/mile (so it was the same as overhead console). Guess I'm lucky to have one that works???
4) Running #2 diesel with Power Service anti-gel (white bottle) for winter.
5) Day and night temps = (between 28 - 40 F).
Cargo Master
Joined: Jun 2003
Posts: 2,203
Likes: 0
From: Carlsbad, California
My overhead computer is always quite close in what it reports compared to my hand calculated numbers.
Daryl
Daryl
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New User
Joined: Sep 2007
Posts: 3
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Slightly different problem
My Fuel computor has no display any longer. Always blank now. I have found nothing in the Manuals ( that I can find) shows any fuse or relay for it.
Any Ideas/pointers/outright help.
I'm not checking with my local dealer after 3 mis-repairs and services. =(
thanks, d
Any Ideas/pointers/outright help.
I'm not checking with my local dealer after 3 mis-repairs and services. =(
thanks, d
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Senior User
Joined: Apr 2005
Posts: 224
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From: New Baltimore, Michigan
I instaaled it myself. Pretty easy. The cosole cover pulls down. It is held in place by clips and three screws hold the "computer". Uplug and put the replacement in. I do not rember what it cost at the dealer.
Good luck
Greg
Good luck
Greg
Postmaster
Joined: Jan 2005
Posts: 4,743
Likes: 3
From: Peoria, IL
Originally Posted by oakknoll
My Fuel computor has no display any longer. Always blank now. I have found nothing in the Manuals ( that I can find) shows any fuse or relay for it.
Any Ideas/pointers/outright help.
I'm not checking with my local dealer after 3 mis-repairs and services. =(
thanks, d
Any Ideas/pointers/outright help.
I'm not checking with my local dealer after 3 mis-repairs and services. =(
thanks, d
https://www.ford-trucks.com/forums/4...-gone-out.html
The overhead display going out is pretty common, and a lot of people have been able to fix theirs using the instructions in that thread. Good Luck.