Pre-purchase inspection checklist — 2004 Ford Mustang
The 2004 Ford Mustang has several aftermarket lighting and fuel system recalls, with notable issues in vehicle speed control and transmission. Buyers should inspect these aspects closely. It remains a popular sports car but potential buyers must prioritize safety checks, particularly aftermarket parts compliance and accelerator pedal interference.
Known issues to inspect
Aftermarket headlight failures
How to check: Inspect for proper amber side reflectors on headlamps.
Accelerator pedal interference
How to check: Check pedal clearance with carpet during acceleration.
Power train complaints
How to check: Test for rough shifts or delays in response.
Test-drive walkthrough
- 01
Cold start
What to check: Listen for unusual engine noises or vibrations.
Red flag: Persistent knocking or rattling sounds
- 02
First minute idling
What to check: Observe any dashboard warning lights.
Red flag: Illuminated check engine light
- 03
City driving
What to check: Check for smooth gear shifts without delays.
Red flag: Rough or delayed gear engagement
- 04
Highway acceleration
What to check: Monitor for smooth and responsive acceleration.
Red flag: Hesitation or jerking response
- 05
Braking test
What to check: Ensure brakes engage smoothly and effectively.
Red flag: Vibrations or delayed response while braking
Questions for the seller
Use this exact phrasing.
- Have the headlamp assemblies been replaced?
- Is the accelerator pedal clearance checked?
- Were there any transmission issues?
- Are all recalls addressed?
- Has the fuel system been modified?
Documents to request
Don't sign anything until you have these.
- Completed recall service records
- Vehicle maintenance history
- Title and registration papers
- Emissions test results
Generated by gpt-4o on 6/14/2026. Grounded in the NHTSA recall corpus and owner-complaint patterns for the 2004 Ford Mustang.