Car Tune-Up Checklist
A comprehensive car tune-up checklist to optimize engine performance, fuel efficiency, and longevity through detailed inspections of filters, ignition, and fuel systems.
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| Item | Priority | Who | Time | What to check (Pass/Fail) | If failed (Next step) |
|---|---|---|---|---|---|
| Engine Air Filter | Required | DIY | 5 min | Clean, no debris, light passes through | Replace filter |
| Spark Plug Condition | Required | DIY | 30-60 min | No heavy carbon, gap is correct | Replace plugs |
| Battery Terminals | Recommended | DIY | 10 min | No corrosion; tight connection | Clean with wire brush |
| Serpentine Belt | Required | DIY | 10 min | No cracks, fraying, or glazing | Replace belt |
| Coolant Level/Color | Required | DIY | 5 min | Level at 'Full'; bright color | Top off or flush system |
| Brake Fluid Level | Required | DIY | 5 min | Level between Min/Max; clear amber | Inspect for leaks; top off |
| PCV Valve | Recommended | DIY | 15 min | Rattles when shaken; not clogged | Replace valve |
| Throttle Body | Optional | DIY | 20 min | No heavy black carbon buildup | Clean with specialized spray |
| Vacuum Hoses | Recommended | DIY | 15 min | No hissing sounds or visible cracks | Replace damaged hose |
| Fuel Filter (External) | Recommended | Shop/DIY | 30 min | No leaks; not past service interval | Replace filter |
| Spark Plug Wires | Recommended | DIY | 20 min | No cracks or arcing marks | Replace wire set |
| Oil Level & Quality | Required | DIY | 5 min | Amber/Brown; at 'Full' mark | Change oil and filter |
| Wiper Blades | Recommended | DIY | 5 min | Clears water without streaking | Replace blades |
| Tire Pressure | Required | DIY | 10 min | Matches door-jamb PSI | Inflate to spec |
| Cabin Air Filter | Optional | DIY | 15 min | No dust/mold smell; clean pleats | Replace filter |
| OBD-II Error Codes | Recommended | DIY | 10 min | No active or pending codes | Diagnose specific code |
| Power Steering Fluid | Recommended | DIY | 5 min | Level correct; no burnt smell | Top off or investigate pump |
| Transmission Fluid | Recommended | DIY | 10 min | Red/Pink color; correct level | Consult shop for service |
Use the table above as your primary guide during the tune-up. Start with the 'Required' items first to ensure the vehicle is safe and functional before moving to 'Optional' maintenance tasks.
Keep a log of the date and mileage for every item you replace. This documentation is invaluable for resale value and helps you track the lifespan of your components over time.