JEEP COMANCHE ENGINE POOR MILEAGE

Lately Very Poor Gas Milage From 27mpg Down To 14mpg I Replace Spark Plugs Air Fillter Discrburator Items Clean Carburator Items Gas...

Starting Few Months Back Truck Start To Get Realy Poor Milage From 28 Miles Per Gallon To 16mpg I Replased Spark Plugs, Ingntion Wires All...