AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2004 Infiniti Fx
Overall rating NHTSA-grounded
Poor
Estimated 5-year repair + maintenance cost: $4,500–$7,200
The 2004 Infiniti FX is plagued with fuel system issues, reflecting its poor overall reliability. Although specific complaints are limited, the nature of the issues suggests potential for high maintenance costs.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| fuel system | 80,000–120,000 miles | $300–$800 | common |
Scheduled maintenance to budget
Routine items every owner should plan for.
- oil and filter changes
- brake inspections and servicing
- transmission fluid checks
- coolant system flush
- tire rotation and alignment
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- fuel odor leakage
- unexpected engine stalling
- check engine light
- reduced fuel efficiency
Generated by gpt-4o on 8/20/2026. Cost ranges are conservative estimates that account for typical regional variation.