
Replacing the fuel filter on a Dodge Ram Cummings Diesel is a straightforward process that can be completed in less than five minutes. The fuel filter housing can be found on the driver's side of the engine, near the firewall. With a ratchet and extension, you can remove the old filter, snap the new filter in place, and reinstall it. This article will provide a step-by-step guide on how to replace the fuel filter, ensuring optimal performance and fuel economy for your vehicle.
| Characteristics | Values |
|---|---|
| Difficulty | Easy |
| Time | Less than 5 minutes |
| Tools | 1/2" Drive Ratchet & Extension, 29mm Fuel Filter Socket |
| Parts | Fuel Filter - WIX 33585 |
| Symptoms | Sluggish performance, poor fuel economy, no-start condition, rough idle, known bad fuel |
| Steps | Pop the hood, locate the fuel filter housing, remove the old filter, snap the new filter in place, reinstall |
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What You'll Learn

Locating the fuel filter housing
To locate the fuel filter housing, pop the hood of the truck and look on the driver's side of the engine, near the firewall. Once you've found the fuel filter housing, carefully lift the filter element/lid upward and tilt it 45 degrees to allow all possible fuel to drain back into the filter housing. This will ensure that air doesn't enter the fuel lines or lift pump, as trapped air in the lift pump can be difficult to remove and may reduce performance.
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Removing the old filter
To remove the old filter, pop the hood of the truck and locate the fuel filter housing on the driver's side of the engine, near the firewall. With a ratchet and extension, you can have the old filter out in less than 5 minutes. Ensure that you avoid any cables, and lift the filter element/lid upward and tilt 45 degrees to allow all possible fuel to drain back into the filter housing. Keeping as much fuel in the housing will ensure air doesn't enter the fuel lines or lift pump. Air trapped in the lift pump can be difficult to remove and may reduce performance. With the filter element/lid removed from the truck, invert the assembly and note the 8 retaining tabs holding the element in place. Remove the element by gently prying the tabs outward and lifting the element. Work your way around the tabs in one direction and "walk" the element out.
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Draining the fuel
To drain the fuel, you should first pop the hood of the truck and locate the fuel filter housing on the driver's side of the engine, near the firewall. Then, carefully avoid any cables, lift the filter element/lid upward and tilt it 45 degrees to allow all possible fuel to drain back into the filter housing. Keeping as much fuel in the housing will ensure air doesn't enter the fuel lines or lift pump. Air trapped in the lift pump can be difficult to remove and may reduce performance.
With the filter element/lid removed from the truck, invert the assembly and note the eight retaining tabs holding the element in place. Remove the element by gently prying the tabs outward and lifting the element. Work your way around the tabs in one direction and "walk" the element out.
When inserting the new filter element, do so slowly to ensure that you do not splash any fuel out or introduce any trapped air into the system.
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Inserting the new filter
The whole process, including removing the old filter, should take less than five minutes and can be done at the roadside. All you need is a ratchet and extension, and optionally, a 29mm fuel filter socket.
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Reinstalling the new filter
With a ratchet and extension, you can have the old filter out and the new filter in place and reinstalled in less than 5 minutes. This makes it an easy-to-do roadside repair.
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Frequently asked questions
It is recommended to replace the fuel filter as part of scheduled maintenance. However, you may need to replace it more frequently if you experience sluggish performance, poor fuel economy, a no-start condition, rough idle, or known bad fuel.
With the right tools, you can replace the fuel filter on a Dodge Ram 2500/3500 truck in less than 5 minutes.
You will need a 1/2" drive ratchet and extension, and optionally, a 29mm fuel filter socket.
First, locate the fuel filter housing on the driver's side of the engine, near the firewall. Then, carefully lift the filter element/lid upward and tilt it 45 degrees to allow the fuel to drain back into the filter housing. Remove the old filter by working your way around the 8 retaining tabs and gently prying them outward. Finally, insert the new filter element slowly, ensuring that the hole is pointing away from the lid and that no fuel is splashed out or air is introduced into the system.










































