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Where is the canister filter on dodge diesel truck?

Dodge diesel trucks do not have canister filters in the same way gasoline-powered cars might have an evaporative emission canister. Diesel engines have different emission control systems.

The equivalent components for emission control on a Dodge diesel would be:

* Diesel Particulate Filter (DPF): This traps soot and other particulate matter. It's a significant component of the exhaust system, usually located under the truck near the exhaust manifold or further back along the exhaust pipe. Its location varies depending on the year and model of the truck.

* Selective Catalytic Reduction (SCR) system (on many newer models): This injects urea (Diesel Exhaust Fluid or DEF) into the exhaust stream to reduce NOx emissions. The DEF tank is usually separate and visible, often near the fuel tank, but the SCR catalyst itself is part of the exhaust system.

* EGR (Exhaust Gas Recirculation) system: This recirculates some exhaust gases back into the engine to reduce NOx. The components of this system are integrated into the engine and intake system.

To find the specific location of the DPF or SCR components on your *specific* Dodge diesel truck, you'll need to consult your owner's manual or a repair manual for that year and model. The location varies significantly.