Horrible mileage!!
#21
I'm definitely interested in this problem myself. My truck 2001 2500 4wd auto 3:55's. 230k. 275/65/20's thats about a 33 inch tall tire. The previous owner said he replaced the Vp and the stock lift pump. When I had it off to replace the side cover gasket, it appeared to be a remanufactured one. Starts fine, and runs fine. just ordered an airdog 150. seems to be getting around 14- 15 mpg. Another question I have what should these trucks be getting mileage wise. I haven't been hot rodding mine either.
Last edited by BarryB; 11-17-2011 at 05:33 PM.
#22
can cheap injectors lead to the lousy mileage club that I am also a member of? I have a rebuilt vp44 from pensacola diesel, and a set of +50 hp candles from the same vendor. I know when I changed them, she would at least start on the first crank, but could that be my problem? even with the smarty, I have only gotten 13.5 mpg at best.
#23
I am also wondering about injectors being the culprit. Seems to have an extended cranking time after sitting cold for a while. I have absolutely no idea as to what injectors are in it having only had the truck for a couple months and am also a little leary on trying to pull them just for the simple fact I have never pulled injectors on a diesel before. Is this a simple process? Where can I get these pop tested? Also based on the mods in my sig what would you guys suggest for replacement injectors? Thanks guys!!!
#24
#26
#28
I would say that 100 hp injectors should be plenty big for that i would think and depending on what your future plans are with the truck but i know that scheid diesel has 100 and 150 hp injectors
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Also I'm not sure if you have a programmer but your mileage may change a little maybe not that noticable but if u do have a programmer and change your tire size and it may go up a half mpg or thats what it did on my truck when i changed my tire size to 33 instead of factory
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Also I'm not sure if you have a programmer but your mileage may change a little maybe not that noticable but if u do have a programmer and change your tire size and it may go up a half mpg or thats what it did on my truck when i changed my tire size to 33 instead of factory
Last edited by Oliver Green; 11-22-2011 at 03:21 PM. Reason: Automerged Doublepost
#29