caridImage: caridThe fuel filter on a 2000 GMC Sonoma is mounted in between the gas tank and the engine. Its job is to stop any harmful sediment from entering the fuel injection system and potentially damaging the engine. How to Replace the Fuel Filter on a 2000 GMC Sonoma | It Still Runs Was this helpful? 2000 GMC Sonoma Fuel Filter - AutoZone Equip cars, trucks & SUVs with 2000 GMC Sonoma Fuel Filter from AutoZone. Get Yours Today! We have the best products at the right price. 2000 GMC Sonoma Replacement Fuel Filters – CARiD GMC Sonoma 4.3L 2000, CM EFI In-Line Fuel Filter by Canton Racing®. This inline filter is for GM, Jaguar and Land Rover EFI with 16 mm female inlet and outlet ports, 4" long and comes with our 2-5/8" long 1 micron fuel element.