question about my alternator

[lakotie]

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

[bigcountrysg]

I doubt it would have any effect on your fuel mileage. What is your mpg you are getting right now.

[sldghamr]

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.

[lakotie]

i get about 25-29 mpg at the moment, and i have 330000 kms on it

[bigcountrysg]

Originally Posted by lakotie

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.

[lakotie]

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