Typically one fuel pump resides in the fuel tank to feed the engine. If the Journey is equipped with a gasoline direct-injection engine, a second high-pressure pump in the engine may be used, bringing the total to two pumps in the fuel system.
Engine configurations and fuel-pump setup
The number of pumps depends on the engine option and year. Non-DI variants often rely on a single in-tank pump, while direct-injection versions require an additional high-pressure pump to deliver fuel to the rail at the required pressure.
Where the pumps live
Understanding the physical locations helps with diagnostics and maintenance.
- In-tank electric pump: Located inside the fuel tank, provides low-pressure fuel to the engine and supports fuel delivery as the fuel level changes.
- Engine-mounted high-pressure pump (for DI engines): If equipped, pressurizes fuel for the direct-injection system and feeds the fuel rail.
In practice, you’ll typically have one pump, but a 3.6L Pentastar direct-injection engine can involve a second pump in the engine bay as part of the high-pressure system.
Maintenance and troubleshooting implications
When diagnosing fuel-delivery problems, knowing whether the vehicle relies on a single pump or two can guide diagnostics, such as checking the in-tank pump voltage and the high-pressure pump operation if present.
Summary
Most Dodge Journeys use a single in-tank fuel pump. Engines with direct injection, such as the 3.6L Pentastar variant, may also include a second high-pressure fuel pump in the engine, making two pumps in the overall fuel system. The exact configuration depends on the engine option and model year.