How often should the fuel filter and fuel injection nozzles be cleaned by dealer. Can I do it myself?
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2009 Mercury Mariner Hybrid Question: fuel system maintenance
Answer #1mastertech6371 June 07, 2011, 13:29Master
once a year on both. unless you have the equipment, you are better off letting a shop do this service. the additives sold in parts stores are not good enough.
you dont need to go to a dealer. any good repair shop can perform this service.
Answer #2donaldautorepair from Donald Auto Repair, June 12, 2011, 18:04Technician
I think it depends on the miles you drive. The injectors do not need to be clean, but the throttle body is a lot more important and should be done every 15,000 miles. The filter every 30,000.