Ignition Coil & Spark Plug Replacement for Rowlett drivers
A misfire makes itself known when you accelerate up onto the George Bush Turnpike or merge onto I-30. If the check engine light flashes, back off right away. We find the bad coil or plug and replace it at your Rowlett home. Both Dallas and Rockwall Counties require emissions testing, so you'll need it fixed either way.
Rowlett sits on Lake Ray Hubbard, and most commutes cross water on the George Bush Turnpike or I-30 bridges. A car that dies on a bridge has nowhere to pull over, so it pays to catch problems early. The rest of a Rowlett drive is signals on Lakeview Pkwy, Dalrock and Rowlett Rd.
Signs of a misfire
- Engine shakes or stumbles at idle or under acceleration
- Flashing check engine light
- Codes P0300 to P0308
- Loss of power or hesitation when merging
- Worse fuel mileage
- Smell of raw fuel from the exhaust

What we do on a mobile misfire repair visit
Find the cylinder
We read misfire data to find which cylinder is missing and test whether it's the coil, plug, injector or a vacuum leak.
Ignition coils
We replace failed coils, and tell you if the others are near the end of their life too.
Spark plugs
We install the correct plugs, gapped and torqued to spec, which is important on aluminum heads.
Verify the fix
We clear the codes and test-drive to confirm the misfire is gone.
When a shop is the better choice
Rear spark plugs on some transverse V6 engines require removing the intake manifold, which takes longer. A misfire from low compression points to internal engine trouble that needs a shop.
What it costs in Rowlett
Diagnostic Visit: $150
A $50 non-refundable deposit to book and $100 when the diagnosis is complete. Best when you're not sure what's wrong.
Repair Visit: $50 + parts & labor
Booking and travel fee, plus parts and labor. Get an instant repair price from your VIN on our Get a Quote page.
Where we work in Rowlett
Areas: Waterview, Sapphire Bay, Downtown Rowlett, Lakeside, Chiesa Rd area, Dalrock Rd area, Kenwood Heights, Miller Rd area
Roads we cover: President George Bush Turnpike, I-30, Lakeview Pkwy (SH-66), Dalrock Rd, Rowlett Rd, Miller Rd
Ignition Coil & Spark Plug Replacement in Rowlett: questions
Is it safe to drive with a flashing check engine light?
Drive as little as possible. A flashing light usually means a misfire is sending unburned fuel into the catalytic converter, which can overheat and destroy it.
Coil or spark plug: which is bad?
We can swap the coil to another cylinder and see if the misfire follows it. That tells us whether the coil or the plug is the problem.
Can you replace spark plugs at my home in Rowlett?
Yes. Coils and plugs are well suited to mobile service in your Rowlett driveway or work lot.
What does misfire repair cost?
If you don't know the cause, start with the $150 diagnostic visit. Repairs are a $50 booking and travel fee plus parts and labor, quoted before we start.
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