For most 2016 Ram 1500 gasoline models, the fuel filter is not a separate, serviceable component in the engine bay; it sits inside the fuel tank as part of the fuel pump assembly. The EcoDiesel version, however, uses an external fuel filter/water separator mounted along the fuel line under the truck that is serviceable. This distinction depends on the engine you have.
Gasoline Ram 1500: filter location and service
The Ram 1500 equipped with gasoline engines (such as the 3.6L Pentastar or the 5.7L Hemi) generally relies on an in-tank fuel filtration system. The filter is integrated with the fuel pump inside the fuel tank, and there is no removable external filter canister under the hood. Accessing or replacing this filter typically requires dropping the tank and performing service through a shop.
Before the list, it’s useful to know that gasoline Ram 1500s from 2016 do not use a conventional engine-bay fuel filter that you replace like older vehicles. The filtration is handled by the pump module inside the tank.
- In-tank fuel filter: located inside the fuel pump module within the fuel tank.
- External filter presence: generally not present on gasoline engines in this model year.
In summary, for gasoline-powered 2016 Ram 1500 trucks, you won’t find a replaceable under-hood fuel filter; the filter resides in the fuel tank with the pump assembly.
EcoDiesel Ram 1500: fuel filter location
The 3.0L EcoDiesel variant uses a separate fuel filtration setup that is mounted externally along the fuel line. This external filter/water separator is located under the vehicle, typically along the frame rail where the diesel fuel line runs to the engine. It is a serviceable component that can be replaced without dropping the fuel tank, though access and procedures may vary by vehicle and require proper safety precautions.
Before the list, this section clarifies that the EcoDiesel doesn’t rely on an in-tank filter in the same way as gasoline engines; it uses an external filter assembly on the fuel line that is intended to be serviced periodically.
- External filter location: mounted along the fuel line under the truck (often on the frame rail or near the engine bay where the diesel lines run).
- Maintenance notes: service per the owner's manual or a dealer’s recommendation; replacement usually involves relieving fuel pressure and using the correct filter cartridge and hardware.
In summary, the EcoDiesel Ram 1500 has a serviceable external fuel filter/water separator along the fuel line, unlike the gasoline models.
How to confirm the exact location on your truck
To confirm the precise filter type and location for your specific truck, check the owner’s manual or service manual for your VIN, engine code, and drivetrain. If you’re unsure, contact a Dodge/Ram dealer or a qualified mechanic. Fuel-system work should be performed with caution, following safety guidelines to prevent fuel leaks or injury.
Summary
The 2016 Dodge Ram 1500’s fuel filter location depends on the engine. Gasoline models (3.6L and 5.7L) use an in-tank filter integrated with the fuel pump inside the fuel tank, with no external serviceable filter in the engine bay. The EcoDiesel (3.0L) uses an external fuel filter/water separator along the fuel line under the vehicle, which is serviceable. Always consult the owner's manual or a professional technician for the correct procedures and maintenance intervals.


