Working Hours
  • Mon 7:30AM - 5:30PM
    Tue 7:30AM - 5:30PM
  • Wed 7:30AM - 5:30PM
    Thu 7:30AM - 5:30PM
  • Fri 7:30AM - 5:30PM
    Sat 7:30AM - 3:30PM
  • Sun Closed
    Temporary Hours
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314-837-6250 | 14241 New Halls Ferry Road Florissant, MO 63033

Diesel Engine Repair

Hardworking or just hard at play, Ronsick's Auto Care services diesel trucks and jeeps from manufacturers such as GM, Chevy, Dodge, Ford and more. We also specialize in diesel engine repair for DuroMax, Power Stroke and Cummins.

Popular Brands We Repair and Service

  • Dodge Diesel
  • Ford Engines
  • DuroMax
  • Mercedes
  • Isuzu
  • Cummins
  • Power Stroke
  • GM Diesel Light Duty
  • Chevy

Choose Ronsick's Auto Care For Your Truck's Next Diesel Service

Read our reviews and see for yourself that we provide the best, most convenient diesel engine services near you at affordable prices. Come into our repair shop in Florissant today and experience the unmatched expertise of our pro diesel mechanics. Our 5-star reviews make us one of the most recommended diesel repair shops in Florissant!

Discover More About Engine Repair Services At Ronsick's Auto Care in Florissant

4X4 Services
Undercar Services: Maintenance
Transmission Repair Services


What Our Customers Are Saying

Personnel here are very courteous, friendly and helpful. The waiting area is always very clean. Reps at front desk, Steve and Rob try to make sure all your automotive concerns are taken care of. Estimates of repairs necessary are given. Repairs are A-one. I will continue to use them for my car care needs.

, 06/24/2022

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Brought my vehicle in thinking I had a tie rod problem which would be expensive but thanks to Ronsicks Auto they checked out my vehicle and found it was not the tie rods but something different. They saved me $500 + in repairs. I like their honesty and prompt service. They have my business going forward. The staff is very professional and polite.

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Exceptional service! The team is very caring, attentive to detail, and cost if service is always reasonable price, The strong customer care culture is endorsed by all employees and is clearly demonstrated by the owner, Steve Sr and Jr. Thanks for caring!

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Had my car in for a state inspection and to find the source of a squeak in the rear of the car. I was told that a strut was the source of the noise & to take it back to whoever did the installation because it should still be under warranty. Very honest workers.

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Service was fast and the staff was super awesome! It's always nice to walk in and see Steve. I never fell pressured, service and recommended repairs are always explained. Any recommendations are given in a written estimate which is helpful. Thank you!

  • ACDelco
  • Jasper
  • O'Reilly Auto Parts
  • AAA Approved Auto Repair
  • State Inspections
  • ASE Master Technician
  • Nexen Tires
  • Gateway Vehicle Inspection Program
  • Car Care Aware
  • Call Us For Service: 314-837-6250