How Often To Change Fuel Filter 6.7 Cummins

| How-To - Engine and Drivetrain

Tips And Tricks For A Quick and Easy Filter Change - Fuel Filter Basics

Don't allow this happen to y'all!

Make clean fuel is key to a healthy diesel engine. Fuel filter replacement is ane of the major maintenance items that is ofttimes neglected or disregarded entirely. Diesel fuel fuel filters also serve a dual purpose, filtering out both debris and water. When filters become clogged, they can permit water to featherbed them, contaminating the truck's injection system. Waiting until the filter element is completely plugged earlier changing can likewise lead to fuel starvation that will non just cause performance loss, but also potentially impairment injectors, injection pumps, and lift pumps. The bottom line is: Bad things happen when filters are left unchanged.

The good news is, even so, irresolute a fuel filter is something anybody tin can practice. All that's needed are the new filter (or filters if you lot own an '03 or newer Ford), a catch pan or bucket, and a couple of basic handtools. This calendar month's basic preparation lesson is not meant to exist an all-inclusive guide to changing your specific filter, rather a primer demonstrating the ease and basic procedure for most trucks. Exist sure to consult your owner's manual for your truck'south specific filter change intervals (typically around 15,000 miles) and filter part numbers. Diesel filters aren't always cheap, only we advise purchasing factory replacement units, equally some of the more than inexpensive alternatives don't always provide the protection sensitive high-pressure fuel systems crave.

After you've read this and decided information technology'due south fourth dimension to modify your fuel filter, a great resource for footstep-by-step instructions for the showtime- timer is the Internet. While it may seem obvious to some, make-specific forums, Google, and YouTube are clogged of how-to stories and instructional videos. With their help there is no reason to shy away from performing a filter alter at dwelling, saving a costly trip to the dealer and keeping your fuel organization in tip-top shape.

Both 5.9L and half dozen.7L Cummins fuel filters are located on the driver side of the engine, beneath the intake manifold.

Cummins

On Cummins engines, the fuel filter blazon and style has inverse slightly over the years, then for our purposes we're going to describe those found on the mutual-rail engines. Both 5.9L and vi.7L filters are located on the driver side of the engine, below the intake manifold. The major divergence lies in how they are oriented, with the 5.9L filter being accessible from the topside of the engine and the 6.7L from under the truck.

To change the filter, the kickoff stride is draining the fuel. Located on the bottom of the filter housing is a water drain valve. Adhere a hose to this nipple and route it to a catch pan, then open up the valve and drain the fuel. With the filter drained you lot can now remove the housing. On the 5.9L, the cap is removed and the filter lifts upward and out, however, on the half-dozen.7L you beginning need to unplug the water-in-fuel sensor before lowering the canister and filter out through the bottom of the vehicle. The filters are reinstalled in the reverse order; make sure to supervene upon and lubricate the canister O-ring. To prime the system, cycle the cardinal without starting the truck x to 20 times.

All the Cummins-equipped Rams use a cartridge-fashion filter, with the five.9L being accessible from the height. A 1 1⁄8-inch socket is used to remove the filter cap.

The Duramax fuel filter is located on the rider side of the engine compartment, near the firewall and next to the battery. Due to its location, guys with larger hands need to retrieve skinny in order to become a grip on the filter. Removing the plastic fenderwell liner is the easiest fashion to expose the filter, since it is just held on with well-nigh 14 plastic snap fasteners and takes mere minutes to remove. Making the Duramax fuel filter unique is its integrated water-in-fuel sensor, which also houses the water drain petcock. This sensor needs to exist unplugged from the vehicle'south wire harness before spinning the filter off, and in one case removed, a special wrench is required to remove and install the sensor.

Replacement filters will provide two new O-band seals: i for the sensor bulkhead and one for the filter'due south sealing surface, both of which should be lubricated with a petroleum-based lubricant earlier being installed. Once the new filter is fastened to the truck, it's time to prime the filter. On the Duramax, priming is done past first opening the relief valve (accomplished with a ½-inch nut driver or flat-head screwdriver) and then manually depressing the primer pump located on meridian of the filter housing. This process takes a bit of time, so patience is central. Once all the air is bled from the filter, the relief valve should be airtight and the process is consummate.

This is the Duramax fuel filter'southward factory location. Equally yous can see, it can exist tough to accomplish from the top.

While some people resort to pliers to remove the fuel-in-water sensor, there's a special tool that makes the task much easier and doesn't take a chance destroying the delicate plastic.

On this relocated filter you can clearly see the relief valve and the primer pump.

The Power Stroke family of engines is the most unique when it comes to non simply fuel filter blazon and placement, just as well quantity. While the Duramax utilizes a single sealed spin-on-type filter and Cummins uses a unmarried cartridge, Fords equipped with half dozen.0L, half-dozen.4L, and six.7L engines receive two cartridge filters (7.3L engines use a single cartridge.) The primary filter is located along the commuter framerail at about the midpoint of the chassis, and brake lines and wire harnesses can obstruct depending on twelvemonth. On '03 and newer models, the secondary filter is located on top of the engine.

Thankfully, changing the filters is a relatively straightforward chore. The outset step is to drain the filter using the water bleed valve. While the process is the same, the actual drain valve is different on each engine model. With the fuel drained, the canister cap can be removed and the new filter installed. Make sure to supercede the sometime O-rings with the ones provided. On the 6.0L and six.4L engines, the secondary filter is inverse in much the same way. Simply remove the plastic cap and replace the filter element and O-ring.

As a departure from the previous cartridge-style secondary filter, the six.7L uses a sealed cartridge, which is replaced as a unit. Replacement requires a setscrew to be loosened and the ii quick-disconnect fuel lines to exist removed. With those steps consummate, the unit simply lifts out for disposal. For a quick style to know if the filter has ever been changed, wait for a third nipple, which is present only on the original manufacturing plant filter.

Priming the fuel system only requires the primal to exist cycled ten to twenty times without starting the engine. This will let the vehicle's low-pressure level fuel pump to make full the new filters with fuel and purge the system of air.

If y'all're lucky plenty to ain a 6.0L, vi.4L, or vi.7L Power Stroke, you'll find a secondary fuel filter, similar to this one, nether the hood.

Seen here is the primary fuel filter on a 6.0L-equipped F-550 four-bicycle drive. Mounted near mid-chassis on the driver side, this truck's filter is partially obscured past the front driveshaft. Also note the h2o drain is a plug, which is removable with a hex bit.

On half dozen.4L-equipped trucks, the h2o bleed valve became more user friendly—and information technology got even easier on 6.7Ls.

Source: https://www.motortrend.com/how-to/1406-tips-and-tricks-for-a-quick-and-easy-filter-change-fuel-filter-basics/

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