What's involved
What this repair actually is.
The modern tune-up bundles the wear items that quietly rob performance: spark plugs at their mileage interval, engine air filter, and cabin filter, plus an inspection of ignition coils and intake condition. Fresh plugs restore a crisp idle and full fuel economy; the filters keep airflow and cabin air clean.
Symptoms
How you can tell.
- Rough or uneven idle
- Hesitation when accelerating
- Fuel economy has slowly gotten worse
- Hard starting in the morning
- Passed 60K–100K miles on original plugs
If you delay
Worn plugs eventually misfire, which wastes fuel and can overheat and ruin the catalytic converter — a far more expensive part.
Educational estimate. Real pricing depends on your vehicle, the inspection, parts availability, taxes, and shop rates. Use this as a guide while you shop quotes.