Service Overview
Spark plugs ignite every power stroke. Worn plugs widen their gap, stress the ignition coils, and quietly steal fuel economy long before a misfire code ever appears.
The service involves all four plugs (OEM-spec iridium or platinum), proper torque per the manufacturer's procedure, coil boot inspection, and a verification scan afterward.
Signs You Need This Service
- Rough idle or shudder at stops
- Hesitation on acceleration
- Hard starting
- Past the plug interval in your maintenance schedule
Consequences of Ignoring It
- Coil failures from the higher voltage worn plugs demand
- Catalytic converter damage from misfires
- Plugs seizing into the cylinder head when grossly overdue
Recommended Service Interval
Copper: 30k miles. Platinum: 60k. Iridium: 100k. We'll confirm your engine's spec.
Price & Time
Deposit: Parts paid before ordering + a $25 labor deposit applied to your final balance.
Final price may vary by distance, vehicle, service details, after-hours requests, emergency availability, or service area minimums.
How location affects pricing
Your listed service price is based on the repair itself. Because we are a mobile service, final pricing may also depend on your distance from our service area, appointment time, urgency, vehicle details, and repair conditions.
- Within 15 miles$125 minimum service total
- 15–30 miles$150 minimum service total
- 30+ milesContact for quote
- After-hours+$75 when available
- Emergency / priority+$150 when available
Minimum service totals are not added on top of larger services — they only apply when a fixed-price service is below the minimum for your location. Distance fees typically begin outside our standard 15-mile service area.
Pricing shown is our listed service price — parts and fluids are quoted at cost where applicable, and your exact flat quote is confirmed before any work begins.
Frequently Asked Questions
Why is the 4-cylinder price lower?
Do you use OEM plugs?
Should coils be done at the same time?
We come to you.
Book spark plugs — 4 cylinder at your home, workplace or fleet yard — anywhere in the Indianapolis metro. Warranty terms provided in writing when applicable.