Diagnose and Repair with Confidence

Owner-operated service means you work directly with the person responsible for every repair.

Receive Honest Mechanical Solutions

Veteran-owned expertise with direct owner involvement every step

Dr. Johnny's Auto Hospital is a veteran-owned, owner-operated auto repair shop serving Petersburg and nearby communities. When your vehicle needs attention—whether it's an engine concern, a transmission issue, or electrical, brake, or transmission diagnostics—you're working with someone who takes responsibility for the outcome. The service extends to both diesel and gas vehicles, supporting local drivers and work trucks across a roughly 25-mile radius.


You'll know what to expect from the start. Diagnostic findings are explained in plain terms, and recommendations focus on what's needed rather than what's optional. If you choose to move forward with the repair, the first hour of diagnostic time is credited back, reducing the total cost and recognizing your decision to stay.


Dr. Johnny's Auto Hospital handles engine repair, transmission repair, diagnostics, preventative maintenance, cooling system repair, fuel system repair, and drivetrain repair with the same level of attention. Each job is approached with the understanding that your vehicle is essential to your routine, and downtime matters.

Reach out to discuss your vehicle's symptoms and set up a diagnostic appointment.

Our Location

1315 S County Road 200 W,

Petersburg, IN

47567

Contact Us

(812) 766-0696

Hours

Mon - Fri
-
Saturday
-
Sunday
Closed

Check Us Out

Engine

Repair

Experienced work on both diesel and gas vehicles for local drivers and work trucks.

Transmission

Repair

Comprehensive service addressing performance issues with reliable, straightforward fixes.

Full Vehicle

Diagnostics

Full vehicle diagnostic time is credited toward your repair when you choose to complete the service with us.

Cooling System

Repair

Targeted repairs to keep engines operating at safe temperatures under all conditions.

A red pickup truck with its hood open and missing its front grille, parked on a gravel driveway in front of a house.
Red truck with the hood open, revealing the engine bay, cooling fan, and front grill area.
A close-up of a hand holding a frayed red electrical wire with exposed metal, near a bundle of other colored wires.

Reach Out

Contact Us

How the Diagnostic Process Works

Understanding what's wrong begins with a methodical review of the symptoms you're experiencing. The diagnostic process involves testing electrical systems, inspecting brake performance, evaluating transmission behavior, and analyzing engine data to identify the root cause. You receive a clear explanation of what was found, what it means for your vehicle's operation, and what repair steps are recommended.


If you move forward with the recommended work, the first hour of diagnostic labor is credited toward the total repair cost. This policy reflects a commitment to fairness and reinforces the value of completing the job where it was assessed.

The approach is designed to reduce uncertainty and give you the information needed to make an informed decision. Services are delivered with attention to the following:

Thorough diagnostics covering electrical, transmission, and brake systems to pinpoint issues accurately

Honest recommendations that prioritize necessary repairs over optional upgrades

Work performed on diesel and gas vehicles with equal attention to mechanical detail

Service to Petersburg and surrounding communities within a 25-mile driving radius

Schedule your diagnostic evaluation to identify what your vehicle needs and how to address it.

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Straightforward Expertise for Every Vehicle
Honest recommendations backed by veteran-owned commitment to dependable mechanical work.

Reviews

See What Everyone is Saying

Five black stars in a horizontal row, representing a five-star rating.

Catherine S.

Johnny got my car in quick rotated my tires and oil change checked my other fluids changed my air filter all at a good price I really appreciate him and recommend him I will go back thank you Johnny Auto

Levi H.

Dr. Johnny’s is an excellent shop. I had my brakes done, oil changed, and tires rotated and was in and out. The cost was so much better compared to other options and I know things were done right because Johnny is a professional. I highly recommend.

Catherine S.

Johnny got my car in quick rotated my tires and oil change checked my other fluids changed my air filter all at a good price I really appreciate him and recommend him I will go back thank you Johnny Auto

Levi H.

Dr. Johnny’s is an excellent shop. I had my brakes done, oil changed, and tires rotated and was in and out. The cost was so much better compared to other options and I know things were done right because Johnny is a professional. I highly recommend.

Five black star icons in a horizontal row, indicating a five-star rating.

Catherine S.

I called Johnny Auto he got me in quick and rotated my tires and oil changed checked all my fluids changed my air filter at a good price thanks Johnny I will be returning to Johnnys Auto

Carolyn G.

I went in to have my car serviced and tires rotated.

They were very helpful and got the job done in a timely manner.

Great service and very affordable! 

I will definitely go back.

Thank you!

Tiffany H.

service requested was a oil change


quick response time .

reasonably priced and fast service

Catherine S.

I called Johnny Auto he got me in quick and rotated my tires and oil changed checked all my fluids changed my air filter at a good price thanks Johnny I will be returning to Johnnys Auto

Carolyn G.

I went in to have my car serviced and tires rotated.

They were very helpful and got the job done in a timely manner.

Great service and very affordable! 

I will definitely go back.

Thank you!

Locally Owned, Veteran-Led Accountability

Dr. Johnny's Auto Hospital is both locally owned and veteran-owned, bringing a sense of responsibility that runs through every repair. Being owner-operated means there's no handoff—you're speaking with the same person who will oversee the work, review the results, and stand behind what's delivered.


The shop is licensed and insured, and the focus remains on dependable mechanical expertise rather than upselling or unnecessary complexity. Whether it's preventative maintenance, drivetrain repair, or fuel system service, the standard is consistent: do the job right, explain what was done, and make sure it holds up.


Set up an appointment for engine, transmission, or diagnostic service and experience the difference direct ownership makes.

Areas We Serve