Sputtering at high speed
One of the earliest symptoms of fuel filter issues would be the engine sputtering at high speed.
The fuel filter may not be badly clogged just yet. But there’s just enough blockage to prevent higher amounts of fuel through to the engine.
Such engine spluttering can also be noticed when ferrying or towing a heavy load.
Difficult to start
When the clogging of the fuel filter worsens, it will be difficult for the engine to start.
Without a proper fuel supply, combustion can’t take place correctly. It may take a few tries to get enough fuel-air mix into the combustion chamber.
The idling will sound very rough when the engine does get started because of the low fuel-air mix ratio.
It may also sound like it’s about to stall. With such an alert, bringing the vehicle serviced should become a priority.
If left unchecked, the fuel filter may get so clogged that the engine won’t even start. At this point, replacing it may be the only fix possible.
Fuel filter problems
Abnormal driving conditions could also cause the dashboard to display an alert if there are problems.
It isn’t easy to recognize symptoms of a bad fuel filter specifically.
Because symptoms can also point to other component issues, it’s easy to overlook the fuel filter. Hence, keeping an eye on the mileage is a good reminder.
Changing the fuel filter will help your engine run smoother and improve your fuel efficiency.
Ford’s Recommended Intervals to Change 6.7 Powerstroke Fuel Filters
Ford recommends that the 6.7 Powerstroke fuel filter is changed every 22,500 miles or as indicated on the instrument cluster message center. The 6.7 Powerstroke fuel filter is comprised of two filters – one on the drivers side attached to the frame, and one under the hood. Both fuel filters should be changed at the same time.
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