Horrible mileage!!
#11
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And is there an alternative for the vp44?
Last edited by four_wheel_n; 10-26-2011 at 02:39 PM. Reason: Automerged Doublepost
#12
The only alternative is an aftermarket (hot rod, monster) which can still fail, or a P-Pump swap from a 12 valve cummins
#13
Ive had the stock LP and IP replaced with no change... I think they are out again and going to upgrade this time to see if this helps...
hope we can figure this out
#14
even with my compounds and 683 racing all day i never got that low. i dont see a fuel system in your sig hope you have one or you may be losing injection pump. had a buddy loose his injection pump and with new pump get horrible mileage turns out in some cases it hurts the injectors. he swapped out with a set of injectors I had and his mileage was back to normal.
#15
#16
what gears are in your truck? are your tires larger than stock and have you had the speedo reset? That could be some of the issue. How many miles on the truck? Had the valves adjusted at all?
#17
#19
I thought mine was bad!!! I get around 15mpg back and forth to work on the highway with a stock ip and stock lp with 170,000 on the truck its an 2001. installing air dog 150 and edge juice/attitude with the cts this weekend hopefully that brings it up some... let us know what you figure out to be bad