OK Green Screen diesel guys. I have a 2003 Dodge that I put new injectors in at about 295K miles. Truck got about 22mpg on the highway prior to new injectors but since then it will only muster 19..... Runs great and mileage is only thing that has changed. It has been about 3 years since change and truck only has 315K now, so just trying to figure out if this is normal or can they be adjusted?? I have no clue! thanks
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5.9 Cummins, New Injectors and fuel mileage?
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Originally posted by kry226 View PostAre they stock injectors? Lots of options out there with higher flow and you'll never get stock mileage out of those. I suspect there may be a break-in period too?
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Originally posted by TKRanch View PostI wondered about this. I did not have it done at a dealership. We were living in North Illinois, so not sure I can even find out what they put in now. I am guessing that unless there is some break in period I am stuck with what I have now.
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I went rounds with a customer on a deal just like this. We adjusted the valves three times, checked the pump timing. He mentioned that he had just spent a ton on the truck right before we worked on it with new tires, rebuilt the front end. That’s when it hit me to go look at his tires. He had went up on tire size and had thrown the odometer off.
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Originally posted by hog_down View PostWhen is the last time you adjusted the valves? Try that and I bet it picks up some pep
https://www.youtube.com/watch?v=oA75L_6KBH8
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Thanks guys! All good information. I am not too worried about it actually just more curious than anything. Luckily it is not a truck that we drive a lot any more, just use it for pulling the horse trailer, hunting and minimal use otherwise, not like we used to use it for sure. Luckily it still runs great (knock on wood!) and will hopefully last for what we use it for for many more years and miles!!
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