Where is the fuel filter on a 2009 Acura TSX?
The 2009 Acura TSX does not have a separate, easily replaceable inline fuel filter. It uses a returnless fuel system with the filter integrated into the fuel pump module inside the fuel tank.
Understanding the TSX fuel system
In the TSX, the fuel filter is not a stand-alone service item. The fuel pump assembly inside the tank includes a filtration element, and there is no external filter you can swap out in the engine bay. If filtration or fuel delivery issues arise, technicians typically replace the entire fuel pump module rather than a separate filter.
Where the filter lives and how to access it
Access to the fuel pump/filter assembly is not located in the engine compartment. It is accessed through an interior component, typically via a panel or opening in the rear seating area or trunk floor, where the fuel pump module resides inside the tank. Exact access points can vary by trim level and region, so consult the owner's manual or a factory service document for your specific vehicle.
Note: Always verify your model’s exact access method before attempting any work, and consider professional service if you’re not experienced with fuel systems.
What to do if you suspect a fuel filtration problem
Because the TSX’s fuel filter is part of the pump module, symptoms of filtration problems are usually addressed by replacing the entire fuel pump module rather than replacing a separate filter. Common checks include a fuel pressure test and a diagnostic scan to rule out other causes such as ignition or fuel contaminants.
Before proceeding, ensure you have proper safety precautions in place, as working with the fuel system can be hazardous. If in doubt, seek assistance from a qualified technician or Acura dealer.
Key facts in brief: the TSX does not feature an external, serviceable fuel filter; the filter is embedded in the in-tank pump module and is replaced as part of that unit.
- Location: Inside the fuel tank, integrated with the fuel pump module.
- Serviceability: No standalone filter to replace; replacement requires the pump module.
- Access: Through an interior panel (rear seat/trunk area), not from the engine bay.
- Replacement approach: If filtration is at fault, replace the entire fuel pump module rather than a separate filter.
Before this list, here is a concise overview of what to know about the TSX fuel filter configuration:
In summary, plan for a pump-module replacement if you’re addressing fuel-filter-related concerns on a 2009 Acura TSX.
Summary
The 2009 Acura TSX doesn’t have a user-serviceable external fuel filter. The filtration element is built into the in-tank fuel pump module, and access for replacement is through an interior panel rather than the engine compartment. If you experience fuel delivery or performance problems, a professional diagnosis should confirm whether the pump module needs replacement, not a standalone filter swap. Always consult your owner's manual or a certified technician for model-specific guidance.
