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Sudden loss in fuel mileage

5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

Sudden loss in fuel mileage

  #11  
Old 11-20-2018, 01:24 PM
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Originally Posted by MP03 View Post
Changed the fuel filter? You may have a turbo on it's way out but I wouldn't get to crazy thinking of that just yet. Check your aftercooler piping as well.
cirous as of how know or check if it is the turbo and what too look for on that pipe? Looking around I swear I have the lowest mileage on these forums!
 
  #12  
Old 11-20-2018, 02:25 PM
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Go to advance auto parts and pick up a bottle of Diesel Kleen injector cleaner. Bad fuel = dirty injector's
 
  #13  
Old 11-24-2018, 08:00 PM
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Originally Posted by Ryan Breg View Post

cirous as of how know or check if it is the turbo and what too look for on that pipe? Looking around I swear I have the lowest mileage on these forums!
if your turn has some axial play it should be rebuilt. There will be some radial play that the oil will absorb. 90% of fuel mileage is all in your right foot. You can make sure your filters are good, wheels spin freely, brakes/ bearings and creating resistance. It needs to be hand calculate as well, don't believe the lie o meter.
 
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