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J & M Diesel And Automotive

About Us

J & M Diesel And Automotive is a trusted auto repair shop serving Crown Point, IN, and surrounding communities. We specialize in diesel repair, brake services, preventative maintenance, diagnostics, and a wide range of automotive repair solutions. Our experienced team is dedicated to providing reliable service, quality workmanship, and honest recommendations to keep your vehicle running at its best. Whether you need routine maintenance or major repairs, J & M Diesel And Automotive is your local source for dependable automotive care.

Areas Served

Lake County, IN | Crown Point, IN | 15-30 Mile Radius

Our Professional Associations

Better Business

Our Certifications

ASE Certified
Power Stroke Diesel Certified

What We Offer

Our Specialties include:

Auto Repair
Wheel Bearings
Suspension
Shocks
Struts
Light Bulbs
Brakes
Diesel and Radiator Service
Fleets
Oil Changes
Preventative Maintenance
Free Air Checks

Our Services include:

Powerstroke Specialist: As Powerstroke specialists, we have the experience and equipment needed to diagnose, maintain, and repair Ford Powerstroke diesel engines. From performance concerns and fuel system issues to major engine repairs, we provide dependable solutions to keep your truck running at its best.
Auto & Diesel Repair: Whether you drive a passenger vehicle, pickup truck, or diesel truck, our team provides complete repair services to keep you safely on the road. We diagnose and repair a wide range of mechanical issues, delivering quality workmanship and honest service you can trust.
Fleet Maintenance & Repair: Keep your business moving with reliable fleet maintenance and repair services. We work with commercial fleets of all sizes, providing routine maintenance, inspections, and repairs to minimize downtime and help maximize the lifespan of your vehicles.
Brake Service: Your braking system is one of the most important safety features on your vehicle. We offer complete brake inspections, repairs, and replacements, ensuring dependable stopping power and peace of mind every time you get behind the wheel.
Suspension & Steering Repair: A smooth, controlled ride starts with a healthy suspension system. We service shocks, struts, wheel bearings, and suspension components to improve handling, ride comfort, tire wear, and overall vehicle safety.
Diesel & Radiator Service: Overheating and cooling system problems can lead to costly repairs. We provide diesel cooling system diagnostics, radiator repairs, replacements, and maintenance services to help protect your engine and keep it operating at the proper temperature.
Oil Changes & Preventative Maintenance: Regular maintenance is the key to avoiding unexpected breakdowns and expensive repairs. Our preventative maintenance services include oil changes, fluid checks, filter replacements, inspections, and other routine services designed to keep your vehicle performing reliably year-round.
Light Bulb Replacement: From headlights and brake lights to turn signals and interior lighting, we provide quick and efficient bulb replacement services to improve visibility, safety, and compliance with road regulations.
Free Air Checks: Proper tire pressure helps improve fuel efficiency, tire life, and vehicle handling. Stop by for a free air check, and we'll make sure your tires are properly inflated and ready for the road.

Our Brands include:

S & B Air Filters
Fass Fuel Systems
Fox Shocks

Our Products include:

Tires
Diesel Parts

Testimonials

On 7/28/2026 Joseph Landry had this to say:
Great experienced people , great prices , they do great work !

On 6/1/2026 Kelly Woods had this to say:
If there were more stars to give, I would. Fantastic owner, reliable, great communication, professional, hard-working and always fair.

On 2/6/2026 Lydia K had this to say:
Always the greatest experience! Super informative about repairs and options to get it done. Quick to get my duramax in the shop and back on the road. ⭐️⭐️⭐️⭐️⭐️

On 10/31/2025 Dakota Wedd had this to say:
This place totally came in clutch. Got me fixed up in a pinch. Zero hassle, super professional, highly recommend Testimonial written by Dakota Wedd on this site.

On 8/22/2025 Richard Comer had this to say:
Had emission repairs on 2018 Chevy Equinox 1.6L L4 Diesel. Repairs done within a few days. Price VERY reasonable. Staff friendly and listened to what I had to say. I will use them again.

Contact Us

J & M Diesel And Automotive
8774 Louisiana St. Suite C Merrillville, IN 46410
Phone: (219) 213-3092

Where To Find Us

Payment Types Accepted

Visa, American Express, Discover, MasterCard, Checks

Our Hours

Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM
Friday: 8:00 AM - 5:00 PM

News

Managing a fleet is demanding—your maintenance partner shouldn’t be.
J & M Diesel Inc. offers dependable fleet maintenance solutions tailored to keep your trucks safe, compliant, and ready for daily use. Whether you operate a small fleet or multiple vehicles, we help you stay on schedule with consistent, professional service.
✔ Fleet‑focused maintenance plans
✔ Experienced diesel technicians
✔ Honest, reliable service
✔ Support for long‑term vehicle performance
Keep your fleet productive and road‑ready.
👉 Visit us online to get started:
https://jandmdieselin.com/

Breakdowns don’t just slow you down—they cost you money. That’s why preventive maintenance is one of the smartest investments you can make for your diesel vehicles.
At J & M Diesel Inc., we provide thorough preventive maintenance services designed to catch small issues before they turn into major repairs. Regular inspections, scheduled servicing, and expert care help extend the life of your equipment and keep your operation running smoothly.
✅ Routine inspections
✅ Scheduled maintenance
✅ Reduced downtime
✅ Trusted diesel expertise
Protect your vehicles and your bottom line.
👉 Learn more or schedule service:
https://jandmdieselin.com/

🚗🔧 J & M Diesel And Automotive – Crown Point’s Trusted Auto Experts! 🔧🚗

Looking for reliable, top-tier auto service in Crown Point, IN? Look no further than J & M Diesel And Automotive — the premier destination for diesel repair, brake service, preventative maintenance, and much more.

Whether you're driving a heavy-duty diesel truck or your everyday commuter car, our experienced team is here to keep your vehicle running smoothly and safely. We proudly serve Crown Point and surrounding communities with honest work, expert diagnostics, and fast turnaround times.

✅ Diesel Repair ✅ Brake Service ✅ Preventative Maintenance ✅ General Auto Repair & More

📍 Visit us in Crown Point, IN 📞 Call today to schedule your service!

Your vehicle deserves the best — and that’s exactly what we deliver.

FAQ

What services does J & M Diesel and Automotive offer?

We specialize in diesel and general automotive repair, offering services such as diagnostics, engine work, routine maintenance, and performance upgrades for both diesel and gas-powered vehicles.

Where is J & M Diesel and Automotive located?

Our shop is located at 8774 Louisiana St, Suite C, Merrillville, IN 46410. We proudly serve customers throughout the Northwest Indiana region.

How can I schedule a service appointment?

You can call us directly at (219) 213-3092 to schedule an appointment or inquire about services. We recommend calling ahead to ensure availability.

Do you work on both diesel and gasoline vehicles?

Yes! Our experienced technicians are equipped to handle repairs and maintenance for both diesel and gasoline engines, including light-duty trucks and passenger vehicles.

What sets J & M Diesel and Automotive apart?

We’re committed to providing five-star service and building lasting relationships with our customers. Our reputation for quality work and honest service is what keeps our clients coming back.