Skip to main content
Johnny's AutomotiveJohnny's Automotive
Frostproof, FL

Tune Up at our Frostproof shop

Bring it to our Frostproof shop and we'll handle the tune up. Here's where to find us, when we're open, and how to book a time.

Call Now
Frostproof, FL101 North Scenic HighwayBook a time online
Step 1 of 2

How can we help?

Tap the closest match.

When works best? (optional)

Visit us

Where to find our Frostproof shop

Address, hours, and directions for the shop that handles your tune up.

Address

101 North Scenic Highway
Frostproof, FL 33843

Shop phone

(863) 546-6735

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 Tune Up Work in Frostproof

Real jobs completed by our team in the Frostproof area

Our team

Our Team

August 2026

Why Is My Check Engine Light Flashing with a Misfire?

The Problem

The vehicle owner experienced a worsening misfire, even after replacing the coils, accompanied by a flashing check engine light.

What We Found

The technician found that the throttle body was dirty, which can affect the engine's air-fuel mixture and lead to misfires.

The Fix

The team performed a scheduled tune-up for the 4-cylinder engine, which included a comprehensive fuel injection cleaning. They also cleaned and serviced the throttle body to ensure optimal engine performance.

The Result

After the service, the misfire was resolved, and the check engine light was no longer flashing.

Pro Tip

A flashing check engine light often indicates a serious issue like a misfire. Addressing it promptly with a tune-up and throttle body cleaning can prevent further engine damage and costly repairs.

Our team

Our Team

August 2026

Why Is My Check Engine Light On with a Rough Idle?

The Problem

The vehicle owner reported that the check engine light was on and the vehicle was running rough.

What We Found

The technician retrieved a diagnostic trouble code P0304, indicating a misfire in cylinder 4.

The Fix

The team performed a scheduled tune-up for the 8-cylinder engine, which included replacing spark plugs and conducting a basic inspection of related components. This maintenance is crucial for ensuring optimal engine performance and addressing misfire issues.

The Result

After the tune-up, the vehicle ran smoothly, and the check engine light was no longer illuminated.

Pro Tip

A check engine light paired with rough idling often points to a misfire. Replacing spark plugs during regular tune-ups can prevent this issue and keep your engine running efficiently.

Our team

Our Team

August 2026

What Causes a Misfire in a 4 Cylinder Engine?

The Problem

The vehicle had been experiencing a misfire condition for approximately one week, as indicated by a misfire code from a previous scan.

What We Found

The technician performed a basic inspection and identified that the vehicle required a tune-up to resolve the misfire issue.

The Fix

The team at our Frostproof shop conducted a scheduled maintenance service, which included replacing necessary components and making adjustments to address the misfire in the 4-cylinder engine.

The Result

After the tune-up, the vehicle's engine ran smoothly without any further misfire issues.

Pro Tip

Experiencing a misfire can often be resolved with a timely tune-up. Regularly scheduled maintenance helps prevent misfires and ensures your engine runs efficiently.

Our team

Our Team

August 2026

What Does a Tune-Up Include for an 8 Cylinder Engine?

The Problem

The vehicle owner brought their car in for a routine tune-up.

What We Found

The technician identified that the vehicle required scheduled maintenance, including a tune-up for its 8-cylinder engine.

The Fix

The team at our Frostproof shop performed a comprehensive tune-up, which involved replacing necessary materials and making adjustments as required. They also rotated the tires and used a calibration tool to re-learn the new tire positions for the TPMS system.

The Result

The vehicle was returned to the owner with improved performance and properly calibrated tire positions.

Pro Tip

For 8-cylinder engines, regular tune-ups can enhance engine efficiency and longevity. Be proactive about scheduling these services to avoid potential engine issues down the road.

FAQ

Tune Up in Frostproof: questions answered

Answered by our licensed technicians serving Frostproof.

What is included in a tune-up at your shops?

It depends on your vehicle, which is the honest answer rather than a dodge. We start from the factory maintenance schedule for your year and engine, add what testing shows, and give you the list before we touch anything. Two cars with the same mileage can need very different work.

Does my car need a tune-up if nothing feels wrong?

Scheduled maintenance is worth doing on time even when the car feels perfect, because filters and plugs wear gradually enough that you adapt without noticing. What you do not need is a package of parts added on top of that schedule. If nothing is due and nothing tests badly, we will tell you so.

Will a tune-up turn off my check engine light?

Not reliably, and we would not sell it to you that way. A lit check engine light means the computer stored a specific fault, and that fault deserves a diagnosis before anyone spends money on parts. Sometimes the fix is maintenance, and sometimes it is a repair that maintenance would never have touched.

How often should the engine air filter be replaced?

Your manual gives an interval, and dusty roads, grove work, and heavy pollen seasons can shorten it. It is easy to check visually, so we look every time the car is in and only recommend it when it is actually dirty.

Does every car need the throttle body cleaned?

No. It helps when carbon has built up enough to affect idle quality or throttle response, and it does nothing measurable when the throttle body is already clean. We look at it before recommending it, and that is a separate thing from cleaning your fuel injectors.

Request an Appointment

Step 1 of 2

How can we help?

Tap the closest match.

When works best? (optional)

ASE Certified Technicians

ASE certified techs working on your vehicle

Flexible Drop-Off Hours

Convenient service options

20+ Years

Decades of trusted service

Schedule now