FUEL CONSUMPTION - Ford Powerstroke Diesel Forum
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post #1 of 23 Old 11-14-2007, 09:18 AM Thread Starter
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FUEL CONSUMPTION

Okay so heres the deal. My truck was in the shop 2 weeks ago because of bad fuel. They (dealership) did 4 fuel system flushes and changed out the fuel filter each time. They said that they cleaned the fuel injectors. Before this happend the truck was getting close to 19-20 MPG of fuel. Now it is getting close to 9 MPG what could be the cause of this drastic change of the amount of fuel the truck is using?????
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post #2 of 23 Old 11-14-2007, 09:25 AM
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What year is your truck? Did they clean the fuel regulator screen? Don't know if this directly relates to your problem.

RICK


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post #3 of 23 Old 11-14-2007, 01:50 PM Thread Starter
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The truck is a 99. Not sure if they cleaned the regulator screen or not. I am taking it back to them on Friday and they are going to change out the Fuel Filter again. They said that could be one of the reasons. They also said my driving habbits as well. But I do not let the truck get over 2,000 RPM while I am driving in the city. Could this be bad I dont think so but hey stranger things could happen. My thought is if I keep the RPM's lower I will save on fuel. $3.50 per gallon. OUCH!!!!
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post #4 of 23 Old 11-14-2007, 01:53 PM
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Even with bad driving habits you should still be better than 9mpg's.

RICK


97 F350 CREW CAB 4x4, 7.3 TURBO DIESEL, DIY INTAKE , TW TUNES
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post #5 of 23 Old 11-14-2007, 02:19 PM
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Did your driving habits change before/after the fuel problem? I'd bet not, so that shouldn't be part of the equation.

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post #6 of 23 Old 11-14-2007, 06:10 PM Thread Starter
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no the driving habbits have not changed at all. But could a dirty Fuel filter cause that much of a loss on the MPG
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post #7 of 23 Old 11-15-2007, 04:59 AM
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Whats this fuel regulator screen? where is this located at? I need to change my fuel filter going into winter here and thought maybe I should check that too, mileage has been droping the last couple months, Thanks!

Doug
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post #8 of 23 Old 11-15-2007, 07:53 AM
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Same thing with my truck, used to get 19-21MPG
Now i get 7-9 no matter what empty or loaded
Fuel filter and air filter are good
changed out a certain sensor, and it shot me back up to 22 MPG, but now a few months later its back to 9 MPG.
Any other sensors or ideas??

Its a 99 7.3


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Last edited by smoke you; 11-15-2007 at 08:04 AM. Reason: info
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post #9 of 23 Old 11-15-2007, 11:02 AM Thread Starter
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What sensor did you change out???
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post #10 of 23 Old 11-15-2007, 12:43 PM
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Quote:
Originally Posted by Stroken n Smoken View Post
Whats this fuel regulator screen? where is this located at? I need to change my fuel filter going into winter here and thought maybe I should check that too, mileage has been droping the last couple months, Thanks!
Echoing the screen question.

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