Service Overview
Each coil turns battery voltage into a 30,000-volt spark. A failing coil misfires under load, flashes your check-engine light, and dumps raw fuel into the exhaust.
Service involves the failed coil(s), plug inspection on the affected cylinder, boot and connector verification, and a road test with live data.
Signs You Need This Service
- Flashing check-engine light (book immediately)
- Shudder under acceleration
- P030X misfire codes
- Fuel smell from the exhaust
Consequences of Ignoring It
- Catalytic converter meltdown from raw fuel — a four-figure part
- Damaged engine mounts from constant shudder
- Stalling and limp-mode events
Recommended Service Interval
No fixed interval — coils fail from heat and vibration, often 100,000+ miles.
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
Replace one coil or all?
Why is a flashing check-engine light urgent?
Could it be the plug instead?
We come to you.
Book ignition coils at your home, workplace or fleet yard — anywhere in the Indianapolis metro. Warranty terms provided in writing when applicable.