Contact Us
2777 Dunn Rd.
St. Louis, MO. 63136
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(314) 869-1611
All forms of payment are accepted, except personal checks.
Hours:
| Monday | 8AM - 5PM |
| Tuesday | 8AM - 5PM |
| Wednesday | 8AM - 5PM |
| Thursday | 8AM - 5PM |
| Friday | 8AM - 5PM |
| Saturday | 8AM - NOON |
| Sunday | CLOSED |
Learning
Transmission Education

Mercedes Benz RWD Transmission, Courtesy of Dahmler Chrysler and HowStuffWorks.com
Certified Transmission & Auto Repair is more than just a place that works on and sells transmissions. It is important to us that the customer has the opportunity to know what is going on underneath them as they drive. You should feel free at any time to ask someone in the shop about what is going on with your particular case.
Most transmission shops are "on-the-level" and honest with their customers, but we understand that not every shop is good. The best rule of thumb is to ask questions and get answers that make sense to you. If you are getting the run-around or incomplete answers to your questions, go somewhere else.
The drivetrain of a modern automobile is a very complicated combination of mechanical parts, electrical systems and computers. It is not uncommon that a car that is under diagnosis for a drivetrain problem be hooked to computers similar to when we see a doctor. Most drivetrain repair specialists are mechanics certified by the ASE just like at the dealerships and automotive repair shops around the country. Certified Transmission & Auto Repair is no exception and is proud of its affiliation with the ASE. Ask to see our certifications if you drop by!
While most customers are not engineers or experts on mechanics or fluid dynamics, you don't need to be one to understand the basics of how transmissions work. There are basically two types of transmissions: Manual and Automatic. There are several variations of both but they all have the same thing in common. Transmissions harness the RPM, torque and horsepower of your cars engine and transfers it to the wheels. The inner mechanics are complicated for both manual and automatic transmissions and there is enough learning for both that there are whole careers made out of understanding each.
We thought it might be best to take multiple approaches to helping you understand the transmission. First, we can turn to the web for an explanation of how the transmission works. Below are links to "How Stuff Works.com" for the Automatic and Manual Transmission. After trying to write in detail about how they worked, we found that HSW did a much more complete and understandable job:
Press here for Automatic Transmissions
Press here for Manual transmissions
Certified Transmission & Auto Repair can handle all of your regular maintenance, and if necessary complete rebuilding services for your manual or automatic transmission and drivetrain. We hope that this little demonstration of how a transmission works and our rebuilding process helps you understand more of what happens under the seat of your own car.
Call Today! (314) 869-1611
Why Use Certified Transmission & Auto Repair?
| Family Owned and Operated | 'A' Rating with the BBB | ASE Master Certified | All Work Guaranteed |
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