Hey Everyone I just got a Used 1997 Ranger 4cyl and it has 236k miles on it runs ok but im not getting the perfomance or the MPG i should be getting. Im thinking of doing a major tune up since i dont know what the previouse owner did or didnt do. Besides Spark Plugs Cables, Air Filter, and Oil Change what else should i change to get the best MPG and make this truck last me a few more years.

You will lose some gpm as you get higher mileage. You might want to change the pcv valve and a fuel filter. You could also look into o2 sensor if you feel.

Ok Cool do you know were i can locate the PCV valve and Fuel Filter? Im not a mechanic just like doing things my self.