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Johnny's AutomotiveJohnny's Automotive
Haines City, FL

Alternator Repair at our Haines City shop

Bring it to our Haines City shop and we'll handle the alternator repair. Here's where to find us, when we're open, and how to book a time.

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Haines City, FL31600 U.S. 27Book a time online
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Where to find our Haines City shop

Address, hours, and directions for the shop that handles your alternator repair.

Address

31600 U.S. 27
Haines City, FL 33844

Shop phone

(863) 422-2995

Hours

Mon to Fri, 7:30 AM to 5:30 PM; Sat and Sun, closed

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 work

Alternator Repair jobs at our Haines City shop

Alternator Repair

October 2026 · Haines City

2003 Chevrolet Astro

Car Dies the Moment the Jumper Cables Come Off

Car Dies the Moment the Jumper Cables Come Off

What the customer reported

The vehicle owner reported that the vehicle would not stay running without jumper cables connected. It could be jump-started, but it died immediately once the cables were disconnected, and the owner suspected an alternator issue.

What we found and did

The repair order listed the main concern as not charging. The technician at our Haines City shop started with an initial assessment and testing, then removed and replaced the alternator assembly. The notes also said further testing may be needed for a complete answer.

Alternator Repair

October 2026 · Haines City

2017 Dodge Journey

Whine Rising With RPMs When Pressing the Gas Pedal

Whine Rising With RPMs When Pressing the Gas Pedal

What the customer reported

The vehicle owner brought the vehicle in for an oil change and reported a whining noise that occurs more when pressing the gas pedal and follows the RPMs.

What we found and did

The technician found the alternator bearings were separating and making noise, and the belt was aged. At our Haines City shop, the team removed and replaced the alternator assembly with a new belt, taking apart whatever was needed to reach and install the parts. A full synthetic oil change to vehicle specs was also done on the same visit.

Alternator Repair

September 2026 · Haines City

2020 Hyundai Palisade

Why Is My Engine Making a Whining Noise?

Why Is My Engine Making a Whining Noise?

What the customer reported

The vehicle was making a whining noise when the engine was turned on, and the noise persisted whether the car was moving or at idle.

What we found and did

The technician identified that the alternator assembly was the source of the whining noise. The team removed and replaced the alternator assembly to eliminate the whining noise. Additionally, they addressed a swollen upper radiator hose that was ready to burst by replacing it, ensuring no further damage would occur. They retested and verified the repairs with a final road test.

Result

After the repairs, the vehicle's engine operated without any whining noise, and the risk of a radiator hose burst was eliminated.

Pro tip

A whining noise from the engine often indicates an issue with the alternator. Addressing it promptly can prevent more expensive electrical problems down the road.

FAQ

Alternator Repair in Haines City: questions answered

Answered by our technicians serving Haines City.

How do you tell an alternator problem from a battery problem?

The battery has to start the car. The alternator has to keep it running and recharge the battery. We test each separately, then measure charging voltage with the engine running and the electrical load turned up. A car that starts fine but dies while driving is pointing at the alternator, not the battery.

Why do you check the belt and the cables first?

Because they fake it convincingly. A glazed belt, a weak tensioner, a corroded cable end, or a bad engine ground will all drop charging voltage and produce the same dash light and dim headlights. Those are quick to check and much cheaper to fix, so they get ruled out before we quote an alternator.

Is it safe to keep driving with the battery light on?

Plan on the car stopping, and not at a convenient spot. Shut off the radio, air conditioning, and anything else you do not need, and drive straight to a shop or have it towed. Once the battery is drained the engine stops, and on most vehicles so does the power steering assist.

Do I need a new battery too if the alternator failed?

Sometimes, and sometimes not. A battery that has been deeply drained several times can be permanently weakened, but plenty of them test fine after a proper recharge. We test it and tell you what it shows instead of bundling one in automatically.

Can an alternator be repaired instead of replaced?

On most vehicles on the road today, a new or remanufactured unit is the practical repair, and it is what our warranty covers. If a pulley, belt, or connection turns out to be the real fault, that is what we fix. We will tell you exactly what we are quoting and why before anything comes apart.

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ASE Certified Technicians

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20+ Years

2 decades of trusted service