Spark plugs and ignition coils in Columbia, MD
Curbside Torque handles spark plug and ignition coil replacement in your driveway or office lot across Columbia, MD and nearby towns including Ellicott City, Elkridge, Clarksville, Savage and Laurel, from
70. Worn plugs make the engine misfire, waste fuel and can overheat the catalytic converter. We replace them at your manufacturer's interval, and test the coils while we're in there.
What it costs for your car
Pick your year, make and model. European cars usually take longer and use pricier parts, so they land higher. Newer cars can need extra steps, like putting an electronic parking brake into service mode.
Show the numbers
| Low | High | |
|---|---|---|
| Mainstream Asian (Toyota Camry) | $170 | $400 |
| Mainstream American (Ford Fusion) | $180 | $420 |
| Premium Asian/American (Lexus ES) | $210 | $480 |
| European (Volkswagen Jetta) | $230 | $550 |
| European luxury (BMW 3 Series) | $280 | $650 |
Curbside Torque estimates. Planning ranges, not quotes; your exact price depends on the engine, trim and condition.
Signs you need it
- Rough idle or misfire
- Hard starting
- Worse fuel economy
- Check-engine light with a misfire code
What the visit includes
- Plugs gapped and torqued to spec
- Coil and boot inspection
- Misfire data checked after the job
- Old plugs shown to you
Spark plug and ignition coil types
We install the plug type and heat range your engine maker specifies, gapped and torqued to spec.
Iridium spark plugs
A fine iridium tip resists wear, so the plug holds its gap for 100,000 miles or more in many engines. Most modern engines call for them.
Platinum spark plugs
Longer-lasting than copper and the factory choice on many engines from the 2000s. We fit platinum where the manufacturer specifies it.
Coil-on-plug ignition coils
Each cylinder has its own coil sitting on top of the plug. Engine heat cracks the boots and coils over time, which causes misfires under load or in damp weather.
What changes the price of spark plug and coil work
- Number of cylinders. A four-cylinder takes four plugs. V6 and V8 engines take more, and the rear bank is often harder to reach.
- Intake removal. On many V6 engines the rear plugs sit under the intake plenum, which has to come off and goes back on with new gaskets.
- Coils. Replacing one failed coil costs less today. Replacing the full set on a high-mileage engine can save a second visit.
- Plug type. Iridium plugs cost more each than platinum or copper. We use the type your engine specifies.
How the driveway visit works
- Four-cylinder engines usually take about an hour. Some V6 engines need the intake plenum removed to reach the rear plugs, which can take 2 to 3 hours.
- We read the misfire codes first, then swap coils between cylinders to confirm whether a coil or a plug is at fault.
- New plugs are gapped to spec and tightened with a torque wrench, so they don't strip threads in an aluminum head.
- We show you the old plugs. Their condition can point to oil burning, a rich mixture or overheating.
We serve Columbia, MD and about 25 miles around, 7 days a week. You see the price before any work starts.
Common questions
How often do spark plugs need replacing?
Iridium and platinum plugs commonly last 60,000 to 120,000 miles. Your owner's manual lists the interval for your engine.
Should I replace all the coils?
Not always. If one coil failed on a high-mileage engine, replacing the set can save a second visit. We give you both prices.
Can I keep driving with a misfire?
A steady light, briefly and gently. A flashing light means stop: raw fuel can overheat and ruin the catalytic converter.
Why is there oil on my spark plugs?
Oil on the plug threads usually comes from leaking spark plug tube or valve cover seals. Oil on the tip can point to worn rings or valve seals. We show you where it's coming from and price the seal repair if it's needed.
Will new spark plugs improve fuel economy?
Worn plugs and weak coils burn the fuel less completely, which wastes gas and roughens the idle. New plugs restore normal economy when the old ones were the problem. On an engine with healthy plugs the gain is small.
Do you replace spark plug wires?
Yes, on older engines with a distributor or a coil pack. Wires crack and leak spark over time, especially in damp weather, which causes misfires. Most newer engines use coil-on-plug ignition with no wires.
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Check-engine diagnosis
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From $400Battery replacement
From $170Alternator replacement
From $520Starter replacement
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From $125Water pump and thermostat
From $430A/C leak check and recharge
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$129 flatVideo diagnosis call
$49 flatRoadside assistance
From $65