question about my alternator - Ford Powerstroke Diesel Forum

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post #1 of 6 Old 10-11-2007, 06:21 PM Thread Starter
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question about my alternator

hello all, i have a question about my 94 f250 non-turbo diesel. will having an alternator that doesn't put out enough voltage, effect fuel mileage? i have been gettin poor fuel mileage, and i notice that my alternator is not working properly (putting out 12.4V) im getting it rebuilt in the morning...any thoughts???
chris
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post #2 of 6 Old 10-11-2007, 06:24 PM
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I doubt it would have any effect on your fuel mileage. What is your mpg you are getting right now.


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post #3 of 6 Old 10-11-2007, 06:29 PM
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highly unlikely on the IDI engines. Low voltage on those engines means hard to crank/glow plugs not working right. on the PSD, low voltage = engine won't run right.

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post #4 of 6 Old 10-11-2007, 06:31 PM Thread Starter
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mileage

i get about 25-29 mpg at the moment, and i have 330000 kms on it
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post #5 of 6 Old 10-11-2007, 06:35 PM
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Quote:
Originally Posted by lakotie View Post
i get about 25-29 mpg at the moment, and i have 330000 kms on it
Your getting 25-29 mpg with an OBS non-turbo truck. Your not getting low mpg's your getting great mpg's especially with that amount on the clock. How ever if it is 25-29KPG since you reported 330000kms on the clock then that is still good mileage for that old of an engine.


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2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

2002 7.3L burnt
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post #6 of 6 Old 10-12-2007, 04:47 PM Thread Starter
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it seems that i get about 500kms per tank (dual tank 72L) now that i have the alternator fixed (60$ cad) it runs better and smokes a little less..another question...this is my first diesel that i have owned ( used them for snow plowing for years) but is there anything that i should be doing, different than a gas motor? and different maint. things that i can do? thanks
chris
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