“Awesome one on one service. Mike and Russ are highly knowledgeable. They had me back on the road in a couple of days and it did not break the bank. :)”
| Monday: | 9:00 AM - 4:00 PM |
| Tuesday: | 9:00 AM - 4:00 PM |
| Wednesday: | 9:00 AM - 4:00 PM |
| Thursday: | 9:00 AM - 4:00 PM |
| Friday: | 9:00 AM - 3:00 PM |
| Saturday: | CLOSED |
| Sunday: | CLOSED |
Duncan Transmission & Automotive of Bridgeton, MO has been serving Bridgeton for over 48 years with quality auto repair & transmission repair services. We specialize in transmission repair and general auto repair.
At Duncan Transmission & Automotive of Bridgeton, MO, we are committed to maintaining a highly ethical and sound business practice in order to meet and exceed our customer’s automotive needs.
We ensure the very best craftsmanship and customer service. We take pride in our work and back our repairs with applicable warranties.

Follow the intervals in your owner’s manual and your vehicle’s maintenance minder. As a rule of thumb, plan for oil changes every 5,000–7,500 miles (synthetic), tire rotations every 6,000–8,000 miles, brake inspections every service, and fluids/filters at manufacturer intervals. Duncan Transmission & Automotive can create a maintenance plan based on your mileage and driving conditions.
A check engine light indicates the powertrain control module detected a fault. It could be minor (loose gas cap) or more serious (misfire, emissions, sensor failure). If it’s flashing, avoid driving and call us. We’ll scan diagnostic codes, test underlying systems, and provide an estimate before any work begins.
Many modern engines require synthetic oil for protection and longer intervals. We follow manufacturer specs for viscosity and oil type. If you’re unsure, we’ll recommend the right oil based on your engine, mileage, and driving habits.
Squeaking can be caused by wear indicators, glazing, or debris; pulsation often points to rotor thickness variation or runout. We’ll measure pad thickness, rotor condition, and hydraulic performance, then recommend the right fix—pads/rotors, hardware, fluid service, or caliper work if needed.
Duncan Transmission & Automotive is a trusted choice for maintenance and repair in Bridgeton, MO. Look for ASE-certified techs, quality parts, clear estimates, and strong warranties. For questions or to schedule service, call 314-291-1615.
Duncan Transmission & Automotive provides full-service care—oil changes, brakes, tires, alignments, batteries, diagnostics, cooling systems, suspensions, and more—performed to manufacturer specs with friendly, straightforward communication.
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