Book Jeep battery service at our Haines City shop. Same technicians, same bays, every time you come in.
31600 U.S. 27, Haines City, FL 33844
Monday to Friday, 7:30 AM to 5:30 PM
Heat is harder on a battery than cold is. Cold weather gets the blame because that is when a weak battery finally refuses to start the car, but the damage usually happened months earlier, in July. Under the hood in Central Florida a battery spends most of the year at temperatures that speed up the chemistry inside it, evaporate fluid out of the cells, and build sulfate on the plates. Sulfate is the chalky layer that keeps a battery from accepting and holding a full charge. So a battery down here can look fine on a mild morning and still be well past its useful life.
Testing tells us more than age does. We load test the battery and watch what the voltage actually does under demand, check state of charge, and see how it behaves with the engine running and after the car has been sitting. Then we pull the terminals, clean the posts and clamps, and look at the white or green crust that quietly adds resistance to every circuit the battery feeds. A loose or corroded connection can act exactly like a dead battery, and it costs nothing to rule out.
Here is the part that saves people money. A battery that keeps dying is often not the problem. If the charging system is not putting voltage back in, a brand new battery will die the same way in a few weeks. If something in the car is drawing current after you shut it off, same result. So before we sell you a battery, we check charging output and look for a drain. Sometimes the answer really is a battery. Sometimes it is a charging or wiring issue, and a new battery would only have reset the clock on the same complaint. Either way you get the test numbers and the inspection photos on your phone, so you can see what we saw.
At our Haines City shop, the technician treated vibration as the main concern on this vehicle.
Read the full jobThe vehicle came to our Haines City shop, where the technician performed a tune up for 6 cylinder engines.
Read the full jobThe technician found plugs oil soaked from overfill and the crankcase saturated with oil, and the engine oil pressure switch had a fault present with the…
Read the full jobThe technician performed a vehicle electrical diagnosis on the left rear turn signal at our Haines City shop.
Read the full jobThe technician at our Haines City shop started with a diagnosis of the engine concern, including testing and inspection of the vehicle system involved.
Read the full jobThe technician removed and replaced the engine coolant thermostat housing.
Read the full jobLooking for a great mechanic shop its really hard around the area am in. I always pass by Johnnys automotive on haines city and on Dundee RD and just there facility is eye opening. I had issues with my jeep wrangler and I needed someone I can trust with my Jeep. Well I gave Johnny’s automotive a try to look at my jeep with some major issues. The minute I walked into there shop it’s a great atmosphere in Haines city. I was sent videos of my issues and explaining in details whats wrong with my jeep. Peace of mind knowing that they really care about your vehicle. I got my jeep back in 2 days of major work. I have not driven the jeep yet to give it a 5 star but I know that the work is guaranteed at least. I will def keep using Johnny’s Automotive for my future car care. Thanks for treating your customer with care and letting them know on there issues and future issues than can possible in counter. Thanks again. Second round on getting my jeep fixed with a Death wobble. Everything came out great so far. Def give a 5 start now for this shop. Will continue to give this shop a shot for all my car needs.
Gio Rod
Verified Google Review
Jerry and his management team serviced my Jeep Cherokee and has the town citizens interest at heart!!! Great customer service and friendly environment ready to help their customer with any mechanical needs. Quick and efficient. Great prices. Lake Wales check them out and they have locations in Dundee and Haines City!!!!
Erica Smith
Verified Google Review
I cannot thank Johnny’s Automotive enough to get my Jeep back up and running. What started out as one problem ended up being multiple problems but the team at Johnny’s kept working to resolve issues. I would recommend Johnny’s to anyone who needs car repairs. They will get your vehicle back up and running.
Beth Conley
Verified Google Review
Johnny's treated me perfectly on my first ever visit. I only needed a simple oil change in my 2020 Jeep Grand Cherokee. I search a location social media site and Johnny earned high marks. I called, got an estimate over the phone and appointment the same day (they had a cancellation). I took my truck in and received great customer service. The place is easy to get to and very clean and professional. I wait about an hour for them to complete the job. There was a bit of an upsell for additional services, but I told them I was there for an oil changed and declined. I recommend Johnny's.
Tyrone Adams
Verified Google Review
I just want to thank Johnny's for the very professional job they did on my wife's Jeep! Thank you!
Osce Lewis
Verified Google Review
Aug 10, 2026 · 7 min read
Why Florida heat is what actually wears a car battery out, the warning signs in the order you'll notice them, how to jump start safely, and what matters on replacement day.
Read article
Oct 2, 2026 · 7 min read
September in review: we completed 1,181 repair orders across our six Central Florida shops, led by diagnostics and oil changes. Here's what came through, what it says about the season, and what to watch next.
Read articlePick whichever one is easiest to drive to.
ASE Certified Technicians
ASE certified techs working on your vehicle
Flexible Drop-Off Hours
Convenient service options
20+ Years
2 decades of trusted service
