Where is the fuel pump on a Lexus RX300?
The fuel pump on the Lexus RX300 is located inside the fuel tank. In most RX300 models, you access or service it through a dedicated access panel in the rear cargo floor; if your model lacks the panel, the tank must be lowered to reach the pump.
Location and access
The fuel pump is integrated with the fuel sender inside the tank. For most RX300s, service access is through a dedicated access panel in the rear cargo area floor. This panel is typically under the carpet or under the spare tire cover, and may be located on the passenger side of the cargo area. If you cannot locate an access panel, you will need to drop or remove the fuel tank to reach the pump and sending unit.
The following notes summarize common access points and considerations for RX300 models.
- In-tank design: The pump is part of the fuel sender unit mounted inside the fuel tank, not in a separate underbody module.
- Access panel in the cargo floor: Many RX300 models provide a removable panel in the rear cargo area floor (often beneath carpet or under the spare tire cover). This panel allows pump removal without full tank drop.
- Tank removal if no access: If no hatch is present or the panel cannot be accessed, servicing requires lowering or removing the fuel tank to reach the pump.
In short, locating the pump typically means starting at the rear cargo floor and looking for an access cover; if that fails, expect to remove the tank to access the sending unit and pump.
Replacement and safety considerations
Replacing or inspecting the fuel pump should follow proper safety procedures: disconnect the negative battery terminal, relieve fuel system pressure, work in a well-ventilated area, and prevent sparks. If you're not experienced with fuel system work, seek a qualified mechanic. The RX300’s pump is tied to the fuel sending unit; replacing it often involves handling the fuel lines and electrical connectors within the tank or access panel.
Additional notes and model-year variations
While the general layout remains consistent, there can be minor variations by year or market. Always refer to the specific owner's manual or a Lexus service manual for exact access panel location and service steps for your vehicle's VIN.
Summary
Summary: The Lexus RX300 uses an in-tank fuel pump. Access is typically through a dedicated panel in the rear cargo floor, with alternate routes requiring tank removal if no panel is present. Confirm your model year and consult the manual or a professional for service.
