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
No payment is collected with the initial request. After reviewing the vehicle, repair scope, parts, location, and access requirements, we will send a written quote with any required deposit before confirming the appointment.
Final price may vary by distance, vehicle, service details, after-hours requests, priority availability, or service area minimums.
How location affects pricing
Your quote 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+ miles Contact 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 quoted service is below the minimum for your location. Distance fees typically begin outside our standard 15-mile service area.
Parts, fluids, distance, timing, and vehicle details are reviewed before we confirm your written quote.
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.