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Johnny's AutomotiveJohnny's Automotive
Sebring, FL

Spark Plug Replacement at our Sebring shop

Bring it to our Sebring shop and we'll handle the spark plug replacement. Here's where to find us, when we're open, and how to book a time.

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Sebring, FL435 North Orange StreetBook a time online
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Where to find our Sebring shop

Address, hours, and directions for the shop that handles your spark plug replacement.

Address

435 North Orange Street
Sebring, FL 33870

Shop phone

(863) 471-0044

Hours

Monday
7:30 AM to 5:30 PM
Tuesday
7:30 AM to 5:30 PM
Wednesday
7:30 AM to 5:30 PM
Thursday
7:30 AM to 5:30 PM
Friday
7:30 AM to 5:30 PM
Saturday
Closed
Sunday
Closed

Recent Spark Plug Replacement Work in Sebring

Real jobs completed by our team in the Sebring area

Our team

Our Team

September 2026

Why Won't My Car Start After Fuel Service?

What the customer reported

The vehicle owner reported that their car was not starting properly and had codes pulled indicating a need for spark plugs and injector replacement.

What we found and did

The technician found that the ignition coil assembly and spark plugs needed replacement, and the throttle body was dirty. The team replaced the ignition coil assembly along with the spark plugs. They also performed a BG Platinum Fuel Service to clean and service the throttle body, ensuring proper maintenance.

Result

After the repairs, the car started smoothly and ran efficiently.

Pro Tip

If your car struggles to start and you've been advised to replace spark plugs, it's wise to have the ignition coil assembly checked too. A clean throttle body can enhance performance and fuel efficiency.

FAQ

Spark Plug Replacement in Sebring: questions answered

Answered by our licensed technicians serving Sebring.

Can I just replace the one bad plug?

You can, but it is rarely the better call. The other plugs in that engine have the same miles and the same wear on them, and most of the cost on many engines is the labor to get there. Doing them as a set means paying that labor once.

Are iridium plugs worth the extra cost?

If your engine specifies them, there is no decision to make, since a cheaper plug will not hold its gap through the interval the manufacturer designed for. If your engine specifies copper, an expensive plug is not going to give you power you did not have. Matching the spec is what pays off here.

Do new plugs need to be gapped?

Most modern iridium and platinum plugs come pre-gapped from the factory and should not be adjusted by hand, since bending the electrode can damage the fine tip. We verify the specification for your engine and handle each type the way its maker intends.

Should I replace the ignition coils at the same time?

Only if they earn it. We test them while they are out, and if one is marginal we will show you what it measured and what it costs to do now versus later. A coil that tests fine gets put right back in.

Why is this job so much more expensive on some vehicles?

Access. On some engines the plugs are right on top and it is straightforward, and on others the intake manifold has to come off to reach the back bank. The parts cost is similar either way, and the labor is what changes. We will tell you which one you have before you commit.

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ASE Certified Technicians

ASE certified techs working on your vehicle

Flexible Drop-Off Hours

Convenient service options

20+ Years

2 decades of trusted service