Where Is Fuel Filter On 7.3 Powerstroke Diesel?

  • Oil and Filter – Oil changes should be performed every 7500 miles or as recommended by the instrument cluster message center.
  • Fuel Filter Replacement – Replace every third oil change, or every 15,000 miles (24,140 km), whichever comes first, or as directed by the message center.
  • Coolant Check/Change – First change at 105,000 miles or 72 months, then every 45,000 miles after that.

Where is the fuel filter on a F250 diesel?

I popped the hood and Corey put me to work with my tools and supplies in hand.

Corey pointed under the truck and explained, “Your primary gasoline filter is located beneath the driver’s side door, on the frame rail.”

“Are you talking about the long steel rail that spans the length of the truck?” I inquired, recalling the days when I’d excitedly repeat nearly every word my father said as he taught me the most basic of “man’s jobs.”

“Yeah,” Corey replied, not nearly as impressed as I had anticipated by my understanding of the obvious.

“Now, your secondary filter will be back up here on the engine, just between the CAC tube and the air intake tube,” he explained, pointing to the engine’s most visible—as in fattest—aluminum tube. “Do you see the two lids over there?” These are to prevent any more debris from clogging the filters. Today you may disregard the larger one; it’s for the oil filter. The smaller lid, the one for the secondary fuel filter, should be removed, he explained.

“It’s all right. I informed him, “Watching you do the first one should give me a very decent idea of what to expect.”

“I’m sure it would,” Corey laughed as he handed me a set of handwritten directions. “But, unless you paid extra for ‘practice filtration,’ you’re diving in right now, champ.” Don’t be concerned. I’ll be there in case of an emergency.”

That’s all right. I skimmed through the directions he’d given for me, stumbled around for a few moments, and then got to work on the Primary Fuel Filter:

  • Place the tub or bucket behind the fuel pump, on the frame rail under the driver’s door.

“Righty tighty; lefty loosey,” I thought to myself, as I do every time I use a wrench.

“Woah. That’s the way diesel fuel smells. “How does anyone huff this?” says the narrator. I was perplexed.

  • Remove the huge black end cap on the end closest to the engine using the 36mm socket.

Note: After emptying the filter for a full 24 hours, you can safely transport it to a scrap metal recycling center by placing it in a closed coffee can or a leak-proof plastic bag.

The replacement filter will snap into place after it is correctly inserted in the cap. Place the supplied o-ring on the end cap and tighten it.

“Ha. O-Ring. My 14-year-old inner voice said, “That sounds a little nasty.”

  • Replace the filter and cap portion in the gasoline pump, tightening the cap tightly with the 36mm socket—torque to 19lb. per ft.
  • Reinstall the allen plug—the brass plug removed in step 2 above—being careful not to overtighten or cross-thread it.

“Do not cut the thread.” This thread must not be snipped. Please don’t stri… What the hell is going on? “I just replaced a fuel filter,” I reasoned.

“So, Corey, I just changed a gasoline filter with my own two hands.” “When will I receive my master mechanic’s certificate?” you might wonder. I made a joke.

“Ha. Sir, not just yet. “However, excellently done,” he added. “Let’s go on to the secondary filter before we pull out the champagne.”

With Corey’s instructions in hand, I crawled from beneath the vehicle and shifted my focus to the engine compartment to install the Secondary Fuel Filter:

“O-Ring. “It’s still funny,” I thought, hoping no one would inquire why I was smirking.

  • Replace the black top cap and torque the bolt to 124 lb. per in. (or 10 – 11 lb. per ft.) with the 24mm socket or 1/2″ square drive ratchet.

I shifted my gaze to Corey. “Is that all? “Didn’t I just nail our first diesel project?” I inquired.

“On the verge,” he said. “Before we start the engine, you still have one vital task to complete. Every time you replace your filters, keep this in mind: After you’ve placed both new filters properly, prime the fuel system and bleed out any air. Turn the ignition to the Run position three times, for a total of 30 seconds each time.”

Corey issued a strong warning to me: “Failure to correctly prime the fuel system might result in catastrophic damage to the injectors, which may not be immediately apparent.” Damaged injectors can appear to function normally for a little time after failure, so it’s not always obvious that something is amiss, according to him. I scribbled that caution down for future reference and climbed into the cab to prime the system. I started her up a couple of minutes later.

How often do you need to change a diesel fuel filter?

There are a variety of reasons why more and more vehicle customers are opting for diesel engines. Diesel engines are the most fuel-efficient internal combustion engines on the market, and they have a number of performance advantages. However, all cars require maintenance, particularly the diesel filtration system. Owners of diesel vehicles may not be aware of when their fuel filter needs to be replaced, so let’s look at a few frequent indicators that it’s time to repair it.

Difficulty starting: When a vehicle has trouble starting or won’t start at all, it’s one of the first symptoms that something is wrong. While there are a variety of reasons why an engine may have difficulties starting, a clog in the filtering system is one of the most typical. Fortunately, changing the filter is a simple procedure. If a vehicle’s engine has difficulties starting, owners should act soon or risk having a completely dead engine — or one that dies in the middle of the road.

At low speeds, a vehicle’s ride can be shaky, but once it starts and moves, it normally drives smoothly. However, if a motorist notices their car struggle at low speeds, such as while pulling out of a driveway or after stopping at a stop sign, the filter may be blocked. The car may struggle to acquire enough fuel to accelerate at first if the fuel distribution is uneven and slow, but it will adjust at higher speeds.

Idling is rough: Idling should be pretty smooth when a vehicle is halted. It’s possible that the filter is blocked if the engine idles harsh and unstable. If the diesel fuel pumps can’t get enough fuel through, the flow will be reduced and the idle RPM will be low. Obtaining assistance from diesel fuel filter suppliers and replacing the filter should resolve the problem and allow the car to idle smoothly.

A maintenance guide should be included with every vehicle, indicating when various parts should be changed. While most diesel fuel filters should be updated every 10,000 to 25,000 miles, this depends on how often the vehicle is driven and how well it is maintained. As a result, diesel drivers should be aware of these warning signs in order to determine when it is time to update their diesel filtration system.

How does a water in fuel sensor work?

The WiF sensor, or Water in Gasoline Sensor, detects the presence of water in the fuel. It is located in the gasoline filter and delivers an electrical signal to the ECU or dashboard when the water level in the water separator reaches the warning level (lamp). The WiF is utilized in Common Rail engines to protect the fuel injectors from damage.

The WiF sensor detects the presence of water by comparing the electric conductivity of water to that of diesel and gasoline. The WiF sensor can be made up of two electrodes that measure resistance in the fluid or between the electrode and the ground.

The first generation of WiF sensors used potting resin to isolate the electronic circuit, however the current generation (the WS3 sensor in Surface-mount technology) uses a novel co-moulding method to make them completely leak-free.

WiF sensors of the most recent generation are very resistant to vibrations and thermal excursion cycles.

How do you prime a fuel filter on a Ford f250?

Listen for the gasoline pump to start and stop when the ignition key is turned to the “Run” position. This should only take a few seconds. When you hear the pump stop off, turn the key to the “Off” position. Rep four times more before starting the truck.

What does a fuel bowl delete do?

Furthermore, the “Bowl Delete” Regulated Return kit removes the restricted fuel filter bowl, which eliminates common and unpleasant leaks, improves fuel flow to the heads, and frees up important engine valley space.

What is the purpose of a fuel filter?

The gasoline filter ensures that fuel is delivered to the engine in a smooth and efficient manner. Because today’s fuel injectors have close-fitting pieces that are easily clogged by dirt and grit, it’s an important aspect of the system. Rather than producing a fine spray of fuel that entirely burns, they begin to produce a stream that does not completely ignite. Changing the fuel filter keeps the injectors cleaner for longer, resulting in increased power and improved gas mileage.

To get the most power out of your engine, bring your automobile or truck to any of our locations for a fuel system cleaning.

What are the symptoms of a dirty diesel fuel filter?

Engine repairs can be pricey, and they might keep your car in the shop for a long time. Wouldn’t it be fantastic if you could do something simple and inexpensive to help safeguard your engine and keep it running smoothly? Wait! Yes, there is! Extra care should be used with the fuel filter.


  • You’re having trouble starting your car. If the problem is with the fuel filter, and it is not replaced promptly, your car may not start at all.
  • Misfire or a sluggish idle A clogged fuel filter may hinder the engine from receiving sufficient fuel.
  • The vehicle has stalled. Nobody likes to come to a complete halt in traffic! However, if you’re driving with a filter that’s beyond its prime, that’s exactly what could happen.
  • A component of the fuel system has failed. When trying to push fuel through a filthy fuel filter, electric fuel pumps can fail prematurely.
  • The gasoline pump is making a lot of noise. Sudden, odd noises may be your vehicle’s method of alerting you to a problem.


The gasoline system is monitored by sensors in many automobiles. When the Malfunction Indicator Lamp (MIL) or Check Engine Light illuminates, it indicates that a problem has been detected by the sensors.

These major issues could be solved with a simple, low-cost solution: changing the filter. Fuel filter maintenance should be done on a regular basis and in a timely manner to ensure consistent drivability. A clean filter lowers pollutants and protects your engine and fuel system from damage.


The filter should be changed every two years or 30,000 miles (whichever comes first), however this is a general recommendation. You may want to change your fuel filter more frequently if you drive a lot on unpaved roads or through highway construction, which can kick up a lot of dust and debris. The suggested interval for your specific vehicle should be found in your vehicle’s owner’s manual.

Don’t skip a planned maintenance check, but if you notice any of the five faulty fuel filter symptoms above, don’t hesitate to have a professional look at your car between appointments. When you visit one of Jiffy Lube’s 2,000 sites across North America, a qualified Jiffy Lube technician will:

  • Inquire about your driving style to see if it has an impact on your vehicle’s fuel system.
  • Replace the old gasoline filter with a new one that complies with or exceeds the manufacturer’s specifications.


The fuel filter isn’t the only one that works hard to keep your vehicle running smoothly. When you come to Jiffy Lube, the technician will visually verify the following items:

  • Air filter for the engine. The engine air filter, like the fuel filter, assists to trap debris in the fuel and protects the engine from airborne toxins.
  • Filter for transmission. The filter in your automatic transmission prevents dirt and debris from entering the hydraulic system.
  • Air filter for the cabin. The cabin air filter helps remove dust, pollen, and mold from the cabin, allowing you and your passengers to breathe easier.

If a replacement of any type is recommended, the Jiffy Lube expert will inform you, but no work will be done without your permission.


Preventive maintenance performed by a professional will help keep your car running as it should. Jiffy Lube specialists have undergone extensive training and only use high-quality materials. This is beneficial to you since it means your car, truck, minivan, or SUV will be ready to go and keep going when you need it most. It’s also excellent for your wallet, because little changes, such as changing your fuel filter, won’t escalate into costly repairs if spotted early.

What happens if you dont change diesel fuel filter?

Every vehicle, after all, is unique. The gasoline filter is sometimes installed in the car’s gas tank. Filters in gas tanks can last indefinitely without needing to be replaced. Every 5,000 miles, others must take it to a diesel repair shop. Depending on how you drive, how often you commute, and what type of vehicle you have, it is advised that you replace your fuel filter every 10,000-25,000 miles for most Diesel trucks.

The owner’s/maintenance manual for most cars will tell you how often you should change the gasoline filter. There’s a good risk your gasoline filter will become clogged with debris if you don’t change it when it’s recommended. As a result, it is no longer capable of filtering all of the gasoline. This might cause your car to not get clean fuel into the engine, causing damage to the engine and injectors over time, necessitating a trip to a Reno diesel repair shop.

More than only a damaged engine can be caused by a clogged fuel filter. You may notice a loss of overall power, a bogging in your vehicle when attempting to accelerate, and even decreased gas mileage. On top of that, you’ll have a damaged engine as a result of the tainted fuel. Our car’s fuel filters are critical, and we don’t want them to fail.