Pre-purchase inspection checklist — 2004 Infiniti Fx
The 2004 Infiniti FX generally holds up well, but has minor issues related to the fuel system. Investigate any gasoline-related complaints and ensure all recall work is completed.
Known issues to inspect
Fuel system fault
How to check: Inspect for fuel leaks or gasoline smell during inspection.
Gasoline odor
How to check: Check for gasoline smell around engine after driving.
Test-drive walkthrough
- 01
Cold start
What to check: Listen for abnormal noises from the engine.
Red flag: Persistent knocking sound.
- 02
First minute idling
What to check: Check for smooth engine idle without vibrations.
Red flag: Rough idling or shaking.
- 03
City driving
What to check: Monitor for any gasoline odor inside cabin.
Red flag: Strong gasoline smell.
- 04
Highway acceleration
What to check: Ensure smooth acceleration without hesitation.
Red flag: Lag or stuttering response.
- 05
Braking test
What to check: Verify brakes function smoothly without noise.
Red flag: Grinding or squealing noise.
Questions for the seller
Use this exact phrasing.
- Has the fuel system been inspected?
- Were any recall repairs completed?
- Are there any unresolved issues?
- Has the vehicle had any fuel leaks?
Documents to request
Don't sign anything until you have these.
- Completed recall documentation
- Service history records
- Proof of recent repairs
- Title and registration
Generated by gpt-4o on 8/20/2026. Grounded in the NHTSA recall corpus and owner-complaint patterns for the 2004 Infiniti Fx.