i have a 94 k3500 crew cab long bed, it has the 34 gallon tank in it
when i fill the tank completely up and drive till it runs out of fuel, it took 23 gallons to fill the tank,
what might cause this, i would like to be able to use all the 34 gallons if need be
all, I have a 94 k3500 with a manual trans, last year converted the ds4 to a db2-4911. cruise control is know working, really like it except,,,,
I get a low rpm light load surge all the time, 4th gear 30 mph around town,,,,,
I didn't change any of the lift pump on the 94 ,, I don't have...