How Often to Change Fuel Injectors: Mileage and Symptoms
Fuel injectors usually do not have a fixed replacement interval. Most gasoline injectors last about 80,000-150,000 miles, while contamination, failed seals, electrical faults, poor fuel filtration, or direct-injection heat can shorten service life. Replace an injector when testing confirms poor flow, leakage, an electrical fault, or an uncorrectable spray pattern, not merely because the odometer […]