i recenlty changed my spark plugs, spark plug wires, and the rotor cap but I am still using so much gas. every time I will have half a tank of gas go about 30 miles and I it is a quarter of a tank.
RepairPal Certified shops can diagnose and repair your 2001 Chevrolet Silverado 1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Could be your fuel guage is inacturate,,,suggest you fill tank and drive till its near empty to refill and caculate your mileage on a compleate tank use.