Something's definitely up there. I drove a Western Star with very similar specs and it was in the low 7's consistently.
14.0 detroit 515 help, 4.1mpg is killing me
Discussion in 'Trucks [ Eighteen Wheelers ]' started by jayz8886, Nov 2, 2009.
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did anyone ever determine the cause of the poor fuel milage. Have an 05 Western Star the first 3 weeks the fuel milage avg about 5.5 and now it ranges from 4.5 - 5. We have replaced the turbo, ran the overhead twice, replaced the number 4 injector. Someone please help. I know that the fuel is not being stolen. I know it is not the driver. There are no codes that come up when hooked up to the computer. Please someone give me a suggestion. We are about out of options.
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Have a dealer pull a DDEC report and see what the idle time is.
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I had A 2005 Classic same specs but 373's. I had new injectors installed and mileage fell badly took it back several times to Detroit they say all is well, ended up taking it to another guy who did a top set on it and when re seating the injectorshe jotted down the injector numbers and then checked the ECM and whoever installed them just put a generic code in the computer??? So he put the codes from the actual injectors and voila fuel mileage!! He said some guys just put in a code that dumps lots of fuel in for hp?? I'm not sure how it works but that's the explination I got so you may want to geta top set and see if it is correct or not??
OR, check to see if you driver drives a diesel pickup..... -
Looking to buy a 2008 Freightliner Cloumbia with Detroit 14 liter. Or a 2012 peterbuilt with a Paccar. Any information on which would be better. Both trucks have around 450,000 miles on them.
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Ahhhh!!!!! Zombie Thread!!!!!
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Anybody have any info on the 2010 Peterbilt 386 Cummins motor ISX with automatic transmission
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Peterbilt trying to get some feedback to buy a 2010 with a Cummins ISX automatic transmission for a 2008 Freightliner with a Detroit 14 liter 10 speed
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Sorry about that trying to get some feedback I'm looking at buying a 2010 Peterbilt with a ISX automatic transmission for a 2008 Freightliner with the Detroit 14 liter 10 speed
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