Frequently Asked Questions for Duncan Transmission & Automotive of Bridgeton, MO

Our shop is at 11835 St Charles Rock Rd, Bridgeton, MO 63044. You can find directions and our contact form on the Contact Us page.

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. Call 314-291-1615 to confirm holiday hours or the best time to bring in your vehicle.

Call 314-291-1615 or use our Contact Us form with your vehicle’s year, make, model and concern. Confirm the date and arrival time with Duncan Transmission & Automotive; sending a form does not by itself reserve an appointment.

Call 314-291-1615 before coming in so we can discuss the problem and current availability. The time needed depends on the work already scheduled and the inspection your vehicle needs.

Contact Duncan Transmission & Automotive at 314-291-1615 with your vehicle details and symptoms. Inspection or testing may be needed before the repair scope and cost can be established. Ask what the estimate includes before authorizing work.

Yes. We offer free road tests. Contact Duncan Transmission & Automotive to discuss availability and whether the vehicle is safe to road-test. Ask separately about any diagnostic testing, inspection or disassembly charges.

Yes, towing is available. Call 314-291-1615 to discuss pickup, availability, charges and delivery arrangements. Confirm the details before arranging a tow; do not assume round-the-clock dispatch or that towing is included in a repair.

Yes. Duncan Transmission & Automotive services domestic and foreign transmissions. Give us the year, make, model and transmission type so we can confirm the work available for your particular vehicle.

Duncan Transmission & Automotive specializes in automatic transmission work and general auto repair. We handle transmission concerns ranging from minor repairs to rebuilding and replacement, along with the general repair services described on our service pages.

Our repairs are backed by applicable warranties. Ask Duncan Transmission & Automotive for the terms covering your particular repair, including time or mileage limits, exclusions and any required approval before related work is done elsewhere.

Contact Duncan Transmission & Automotive at 314-291-1615 to confirm current payment options before authorizing repairs. Ask about any payment or warranty-claim requirements for your job; financing and installment arrangements should not be assumed.

Repair time depends on the diagnosis, parts availability and the work you approve. Ask Duncan Transmission & Automotive for an expected schedule after the evaluation and confirm transportation arrangements rather than assuming same-day completion.

Bring your vehicle keys and relevant maintenance or repair records. Tell Duncan Transmission & Automotive the mileage, when the symptom began, whether it happens hot or cold, and any warning lights. A safely recorded photo of a warning can help; do not record while driving.

Call 314-291-1615 before making an after-hours drop-off. Confirm where to park, how to hand over the keys and when the vehicle can be received. Do not leave a vehicle or keys unattended without an agreed arrangement.

Agree with Duncan Transmission & Automotive on the initial work and a reliable way to reach you. Ask for the findings, revised estimate and expected timing before approving additional repairs, and let the shop know about any outside warranty requirements.

Yes. Duncan Transmission & Automotive handles automatic transmission diagnosis and repair. Tell us when the problem occurs, any warning messages and the vehicle details so we can discuss the appropriate evaluation.

Yes. We offer transmission rebuilding and replacement. Duncan Transmission & Automotive can discuss the findings, repair options, what is included and the applicable warranty for your vehicle before you decide on the work.

Yes. Performance transmission work is available at Duncan Transmission & Automotive. Describe the vehicle, existing modifications and intended use so we can confirm compatibility, the proposed work and applicable terms.

Yes. Duncan Transmission & Automotive offers bench work. Contact us before delivering a unit to confirm which transmission it is, what evaluation is possible, delivery arrangements and what the estimate covers.

Yes. Duncan Transmission & Automotive offers clutch service. Describe pedal changes, slipping, noises or difficulty selecting gears so the clutch, release system and related components can be evaluated.

Yes. Transmission leak repair and resealing are available at Duncan Transmission & Automotive. The leak source needs to be identified first; a fluid spot by itself does not show which seal, line or component needs repair.

Yes. Duncan Transmission & Automotive handles transmission coolers and cooling lines. Share any leaks, temperature warnings or recent work so we can evaluate the cooling circuit and discuss the repair needed.

Yes. Our work includes electronic controls, manual and throttle linkage, transmission adjustment and neutral-switch concerns. Duncan Transmission & Automotive will need your vehicle details and symptoms to establish the appropriate testing.

Yes. Duncan Transmission & Automotive offers work on CV axles, U-joints and transmission mounts. Tell us whether the noise or vibration occurs when turning, accelerating, changing gears or cruising.

Yes. Duncan Transmission & Automotive offers computer diagnostics. Bring any saved codes or test reports, but remember that a fault code identifies a condition to investigate rather than proving a particular part needs replacement.

Yes. Discuss brake squeal, pulsation, pulling or pedal changes with Duncan Transmission & Automotive. If braking is reduced or the pedal suddenly feels soft or sinks, stop safely and arrange assistance instead of driving to the shop.

Yes. Contact Duncan Transmission & Automotive about battery and starting concerns. Tell us whether the engine cranks, whether you hear clicks and whether the lights dim so we can discuss the evaluation your vehicle needs.

Yes. Duncan Transmission & Automotive provides general auto repair including tires, alignments and suspension work. Describe uneven tire wear, pulling, vibration or ride changes and confirm the specific service for your vehicle.

Yes. Duncan Transmission & Automotive provides general auto repair including cooling-system work. Describe the temperature reading, warning lights, leaks and when the concern occurs; do not continue driving an overheating vehicle.

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.

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.

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.