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Old 04-21-2010, 05:48 AM
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fuel milage

is there anyone with the 01 cc 4x4 7.3l longbed running 285/75/r16 getting decent fuel milage with minimal mods, im getting around 12mpg, was getting close to 20mpg then just dropped for no reason.....any help or info would be great.
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Old 04-21-2010, 05:53 AM
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check your fuel filters, make sure all of your intake boots are tight. Clean air filter. Another way to get better mileage is switching all of your fluids to synthetic. I gained 2 mpg's in my 2000 F250 stick, and my dad gained 2 mpg's in his 2003 6.0 auto.
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Old 04-21-2010, 05:59 AM
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my filters are good, oil is good, just dropped all of a sudden and cant figure out why, i put the 4 inch exhaust on and milage went to s***
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Old 04-21-2010, 06:04 AM
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hahahah get your lead foot out of it and stop listening to that beautiful rumble lol
and check everything and make sure its tight on the intake side. so your not losing boost
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Old 04-21-2010, 06:05 AM
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i wish that was it...well it was the first few days but now im pretty easy on her.
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Old 04-21-2010, 06:50 AM
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x3 on the loose boost check
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Old 04-21-2010, 06:54 AM
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Quote:
Originally Posted by ridiculously_necessary View Post
x3 on the loose boost check
can you please explain that, new to diesels and dont know what you are talking about
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Old 04-21-2010, 06:58 AM
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Dad has an 01 CC/ SB and only mod is a superchips on the tow/ perfomr setting. No exhuast/ filter. he runs about 16-17 with 285/75 AT tires
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Old 04-21-2010, 07:06 AM
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Quote:
Originally Posted by kelti819 View Post
can you please explain that, new to diesels and dont know what you are talking about
ill see if i can come up with a pic, or doe sanyone lese have one?

these are the on the boost pipes, they are the rubber connectors/seals and they are known to crack or degrade and leak boost. there is a pic around ehre somethere, ill try and locate one.
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Old 04-21-2010, 07:08 AM
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Quote:
Originally Posted by kelti819 View Post
can you please explain that, new to diesels and dont know what you are talking about
Ya its pretty simple to start with, There are rubber boots with clamps between your intake, intake tubes, intercooler inlets, turbo to intake, intake Y pipe to the intake runners. they all have hose clamps that keep everything sealed so you don't lose boost. Go through and make sure everything is still tight. Its simple and free. Good place to start.
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