2000 7.3 excessive fuel consumption - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 10-01-2013, 05:11 PM Thread Starter
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2000 7.3 excessive fuel consumption

Ok I have a 2000 F250, 7.3, 6-speed, 4x4, 223k miles. I am getting around 8 to 10 mpg at best around town, less on the highway. No oil consumption, no oil in the fuel filter, blow by is a little heavy but nothing serious but a good amount of oil from the ccv, new k&n intake, new turbo, ebps is a little gummed up but not too bad. It's a bit hard to start in the mornings(worse as it gets colder)feels like a cylinder is missing till it warms up, Injector buzz test passed with flying colors. I am fast running out of options so any ideas would be a huge help.
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post #2 of 4 Old 10-01-2013, 05:22 PM

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have you checked your fuel filter? also, you might wanna do a cylinder contribution test. do several to see if you have any inconsistencies.

cold starting issues are going to be related to your glow plug relay more than likely.

check your valve cover connectors and see if theres any burnt or worn parts. those can cause cylinder inconsistencies.

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post #3 of 4 Old 10-01-2013, 07:06 PM
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Check for boost leaks.

There are way too many things that can cause poor mileage to actually list. The main idea is to go over everything. Use a proper scan tool and see if anything is buggered up. AE or similar, not the parts house "we'll check your ride for free" scanner.

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post #4 of 4 Old 10-01-2013, 10:25 PM
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What they said. Check your EBPS tube also.

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