Hi Scotty I been having a problem with my 04 Chevy Silverado 4.3 for over 2 months it has a misfire I changed the injectors, gas pump, gas filter, spark plugs I need help I don’t know what else to do or change. Thank you
Suggest a professional mechanic w/ Dealer-level scan tool thoroughly vet it for you, OBDII live scans, highway driving test, get all stored & current Fault Codes. Scotty recently scanned a Dodge Durango that threw 23 Codes. That way you're not throwing more parts at it, just by guessing-- you'll have the data to back up your diagnostics. Did you change plug wires? Did you install OEM genuine ACDelco parts?