When to change your fuel filter
“The engine may stall, it’ll be difficult to start and you’re likely to have a check engine light on the dashboard”
Consult your Haynes manual to see how often the fuel filter should be changed on your car. Some manufacturers advise that no scheduled maintenance is required. If your vehicle has a replaceable filter, replacing it every 3 years or 30,000 miles is a good rule of thumb.
The only time you may need to change your fuel filter is when it’s blocked and is causing engine issues. This fuel starvation will cause the engine to stall, it may be difficult to start and you’re likely to have a check engine light on the dashboard. A blocked filter may damage the fuel pump by making it work extra hard, so it should be replaced as soon as it shows signs of trouble.
You’ll also want to change the fuel filter if you accidentally put gas in a diesel powered car. This will avoid contaminating the system once the tank, pipes and pump have been emptied, flushed and filled with the correct fuel.
All cars are slightly different, so if it is time to change your fuel filter, use our before you begin checklist, and find your car for specific instructions.