My Milage has droped form 16 MPG to 11mpg any Idea's - Ford Powerstroke Diesel Forum
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post #1 of 16 Old 10-16-2007, 12:32 PM Thread Starter
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My Milage has droped form 16 MPG to 11mpg any Idea's

Hi, I am new to this site and a new diesel owner I bought the truck from my father plumbing business. So I know the truck history and its performance.

As a side note I can't get an open door alarm to clear I ended up just pulling the bulb.

The truck is a 99 f350 crew cab 127,000 miles 7.3, manual transmission

Bump

Thanks for any help

J

Last edited by jaysoverall; 10-16-2007 at 02:24 PM. Reason: Spelling and Grammer mistakes
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post #2 of 16 Old 10-16-2007, 12:35 PM
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i would change the fuel filters and take a look at the air filter those are good places to start

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post #3 of 16 Old 10-16-2007, 12:42 PM Thread Starter
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I changed the air filter I thought that would make all the no luck. The fuel filters are they difficult to change or is that some thing I should have the shop do.
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post #4 of 16 Old 10-16-2007, 01:33 PM
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Fuel filter is an easy one. Its right behind the appearance cover on the top of the motor. Its the black round plastic cap. what i do is take a half inch drive ratchet and extension turn it loose drain the bowl with the yellow lever behind it, and put the new one in

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post #5 of 16 Old 10-16-2007, 02:10 PM Thread Starter
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Thanks I will give it a shot tonight thanks for the info.

Last edited by jaysoverall; 10-16-2007 at 02:27 PM. Reason: Spelling and Grammer Mistakes
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post #6 of 16 Old 10-16-2007, 02:12 PM
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the gas station that you go to, have they switched to ULSD lately??

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post #7 of 16 Old 10-16-2007, 02:15 PM Thread Starter
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Man!!! I need to slow down and spell correctly. I look like an idoit. Thanks everyone for your help.
J
bump
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post #8 of 16 Old 10-16-2007, 02:17 PM Thread Starter
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I am not sure I use Chevron's fuel. In Idaho I don't know for a fact or not if the fuel is treated.
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post #9 of 16 Old 10-17-2007, 07:24 AM Thread Starter
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Any other thoghts I heard that I might have leaky seals around my injectors BUT????????
BUMP
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post #10 of 16 Old 10-17-2007, 07:30 AM
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I would definately start with the fuel filters -- let us know how that turns out and if it helps or not, then we can move on to whatever else it may be...
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