Technological Diagnostics Service in St Catharines, Ontario

Advanced Technology for Assessing Transmission Problems

At Mister Transmission we have access to leading-edge diagnostic equipment, enabling us to offer you the fastest and most accurate findings about what’s going on inside your vehicle’s transmission. Today’s vehicles come equipped with complex computer systems. Our technology can talk to your car’s computer systems to find your specific transmission problems.

The first step in assessing your transmission involves your technician connecting the diagnostic equipment to your vehicle’s on-board computer. This will produce a code stating where the problem lies. Next, the vehicle is taken for a test drive so that we can monitor its behaviour in real-time. While more comprehensive and hands-on evaluations may yet be required, technology is an important tool in determining the right starting point for further investigations.

Find out more about how we diagnose transmission problems and the role of computer diagnostics.

Featured Services
Transmission Repair

The evolution of transmissions has made these machines and systems increasingly complex. When transmission repairs are required, determining the cause and cure for what ails can be tricky.

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Transmission Technology

At Mister Transmission we have access to leading-edge diagnostic equipment, enabling us to offer you the fastest and most accurate findings about what’s going on inside your vehicle’s transmission.

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Transmission Maintenance & Service

Just as you have other parts of your car serviced, your transmission needs maintenance to ensure a long life and avoid transmission problems.

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Customer Reviews
Had my transmission fluid changed...
Namik Mamadov
Had my transmission fluid changed at Mr. Transmission and everything went great. Jordan at the front desk was friendly, professional, and made the whole process smooth. The service was quick and the price was amazing – literally half of what the dealership quoted me. No pressure, no upselling, just honest and efficient work. Definitely recommend if you want solid service without overpaying.
Date: June 25, 2025
Website: Google
Good people good prices definitely...
Jason Yurczsyzyn
Good people good prices definitely recommend them.
Date: January 11, 2025
Website: Google
My husband Victor just picked...
Christine Deverson
My husband Victor just picked up our car. He’s so very pleased with the service and price. In his book he would leave 10 stars if he could. He says why go anywhere else when you have access to the best.
Date: January 10, 2025
Website: Google
I wanted to wait a...
Ziggy Z
I wanted to wait a while before writing a review. So it has been a little over one year since Mister Transmission in St. Catharines rebuilt the transmission in my 2007 Ford Explorer 4x4. They did a superb job! Since the rebuild I have taken long highway trips, hauled my 25 foot boat on shorter trips, gone exploring on bush roads and some off road, as well as the regular day today driving. Maybe it has something to do with the updated parts they used, but it works better than it did when the vehicle was new. The repair took longer than expected because some of the parts were hard to get due to my vehicle's age. But they managed to find them all, one came from northern Quebec. And they even covered the extra days of car rental for me! Thanks guys.
Date: January 4, 2025
Website: Google
This place was amazing. My...
Chuck Robillard
This place was amazing. My Wife car needed work. They found a not from Honda to replace the fluid a couple of times in a row. Got that done, and car runs great now!!! No more vibration!!!
Date: December 20, 2024
Website: Google
Great customer service. Very helpful...
Michael A.
Great customer service. Very helpful and knowledgeable
Date: December 13, 2024
Website: Google
Good and honest people
A Malik
Good and honest people
Date: December 9, 2024
Website: Google
Thank you Jordan and the...
Omar
Thank you Jordan and the amazing team. 1st class service.
Date: October 31, 2024
Website: Google
Thank you Jordan and the...
Omar
Thank you Jordan and the amazing team. 1st class service.
Date: October 31, 2024
Website: Google
Thank you Jordan and the...
Omar
Thank you Jordan and the amazing team. 1st class service.
Date: October 31, 2024
Website: Google
Mister Transmission Blogs
Recent Blogs
Ford Transmission Problems Explained: Sy...
Ford has produced many popular vehicles known for power and innovation. However,
Read More
June 30, 2025
Finding A Reliable Transmission Shop Nea...
The transmission is the heart of your vehicle’s power system. When it starts to
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June 23, 2025
Complete Guide To Transmission Replaceme...
Transmission replacement becomes necessary when wear and damage go beyond repair.
Read More
June 16, 2025
Is Your Vehicle Showing Transmission Pro...
Transmission problems often begin with small signs that many drivers choose to
Read More
June 09, 2025
What Does A Transmission Flush Do? Is It...
A transmission flush is a professional service designed to remove old, degraded
Read More
May 31, 2025
Why Is My Car Not Shifting Gears Properl...
Have you noticed your car struggling to shift gears? Whether it hesitates, jerks, or
Read More
May 23, 2025
What Happens When Transmission Fluid Is ...
Transmission fluid plays a critical role in keeping a vehicle’s transmission system
Read More
May 15, 2025
Used Transmission Vs. Rebuilt Transmissi...
Choosing between a used transmission and a rebuilt transmission is an important
Read More
May 07, 2025
Preventative Transmission Maintenance: 5...
A vehicle's transmission is one of its most critical components, responsible for
Read More
April 30, 2025
Transmission Rebuild Vs. Replacement: Wh...
When a vehicle's transmission begins to fail, owners often face a crucial decision:
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April 23, 2025