Transmission Repair & Service North York, Ontario

Pinpointing the exact cause of any transmission problem takes skill, knowledge, and investigation

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. Why? Because transmissions have become remarkably complex and computerized and that presents both advantages and disadvantages. On one hand, transmission performance has become noticeably better in all vehicle makes and models. On the other, the increased complexity and digitization of transmission systems has made repair work a highly technical and complicated affair.


As you can imagine, there are different types of transmission repair jobs and options you can choose from depending on the nature of your vehicle’s breakdown. Understanding what those options are can help you make informed decisions when faced with a choice of transmission repairs to weigh.

A Repair for Every Type of Transmission Malfunction

Some transmission repair work is straightforward and mechanical in nature. Other times, it’s a combination of mechanical and electronic engineering that’s required to get your car back on the road. The most common types of repair work include:

  • Adjustments and in-car repairs. Most minor repairs are simple matters that are done without removing the transmission from the vehicle. If yours is a computer-controlled transmission that is not shifting properly, it is often the result of a computer sending incorrect signals due to a faulty sensor, or the transmission is not reacting to the command because of a bad connection or defective solenoid pack. If a non-computer controlled transmission is shifting too early or too late, it may require an adjustment to the throttle cable. If the vehicle has a vacuum modulator instead of a throttle cable, there is an adjustment that can be made using an adjustment screw in some designs. In vehicles with modulators, however, it is important to ensure there are no vacuum leaks and that the engine is running at peak efficiency.
  • Reseal jobs. A transmission is re-sealed to repair external transmission fluid leaks. If you see spots of red oil on the ground under the car, your transmission may need a re-seal job. To check a transmission for leaks, a technician will put the vehicle on a lift and examine the unit for signs of oil leaks. If a leak is spotted at any of the external seals or gaskets and the transmission otherwise performs well, the technician will most likely recommend that the transmission be re-sealed. Most of the external seals can be replaced while the transmission is still in the car but, if the front seal must be replaced, the transmission must first be removed from the vehicle to gain access to it.
  • Replacing accessible parts. There are a number of parts that are accessible without requiring the removal of the complete transmission. The parts that are accessible, however, vary from transmission to transmission and most transmission repair facilities would hesitate to provide meaningful warranties on external repairs for the simple reason that they cannot see if there are any additional internal problems in the components that are only accessible by transmission removal.
  • Complete overhauls. Also known as “rebuilding a transmission”, a complete overhaul involves the removal and disassembly of the transmission in its entirety. Every part is inspected for wear and damage, then cleaned in a special cleaning solution, or replaced with another part depending on its condition. Parts that have friction surfaces, such as bands and clutches are replaced as are all seals and gaskets. The torque converter is also replaced, usually with a remanufactured one. Technical service bulletins are checked to see if the auto manufacturer recommends any modifications to correct design defects that were discovered after the transmission was built. Automobile manufacturers often make upgrade kits available to transmission shops to resolve these design defects.

Replacing or Overhauling a Transmission

When a transmission requires an overhaul, there are two options that you may have. The first is to remove your existing transmission and overhaul it, then put the rebuilt unit back in your car. The second option is to replace your existing unit with another unit that has already been rebuilt or remanufactured.

A word to the wise: replacing your transmission with a used one may not be your best option. Used transmissions often have questionable histories that could create a whole new set of challenges. New transmissions, meanwhile, are mostly aftermarket transmissions billed as new but are in fact rebuilt transmissions with new parts.

The cost of the repair is always top-of-mind and understandably so. Transmission repairs are usually unexpected (and unwelcome). The cost varies depending on the outcome of our diagnostic testing, and we will help you to understand the various factors that come into play. We also offer our customers flexible payment options.

Whichever route you choose, you can trust our transmission experts to get you and your car back on the road.

Visit Mister Transmission for an assessment on what transmission repairs you may need. Contact the Mister Transmission service centre nearest to you.

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.

Learn More
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 some clutch issues. Explained...
A R
Had some clutch issues. Explained the issues to Joe and he just had me pump the clutch a few times while he looked under the hood and it turns out to be just air in the hydraulic system. He could have given me the dealer treatment and charged me for diagnostic fees and shop time but he didn’t. He took me for a quick drive around to make sure it’s working and sent me on my way. That’s the kind of place this is. Honest people. Will come back (hopefully not) but if I ever have any transmission issues, this is where I’ll go. Highly recommended.
Date: February 4, 2026
Website: Google
Joe is the best guys...
봉태환
Joe is the best guys in here Toronto Confidence & sincerity
Date: January 23, 2026
Website: Google
Joe is the best guys...
봉태환
Joe is the best guys in here Toronto Confidence & sincerity
Date: January 23, 2026
Website: Google
Efficiency, honesty, professionalism
Martin Mortaro
Efficiency, honesty, professionalism
Date: October 4, 2025
Website: Google
Joe was exceptional! He ssisted...
Ashley Gamboa
Joe was exceptional! He ssisted with trying to find the issue I thought I was experiencing and although all avenues lead to no issues (great for me) they were still able to complete a transmission oil change per the maintenance schedule very quickly. My husband also swears by this location and will only recommend this location to others. I will definitely be back with my other car to get maintenance done. Thank you for a great experience.
Date: September 4, 2025
Website: Google
The staff here are incredible...
Mike G
The staff here are incredible Always take the time to explain what's going on, present and explain multiple options available and steer you in the right direction...all while saving you lots of money. Strongly recommend
Date: August 26, 2025
Website: Google
Hands down the best transmission...
Jennifer Kruk
Hands down the best transmission shop around. The owner, Joe is very honest and will take the time to look and explain any problems. Fair price for quality work by his team. Trust nobody else. Worth driving up from downtown too. Get your car back on the road.
Date: August 21, 2025
Website: Google
Frendly and profissional service .thank...
Zaki Zaaki
Frendly and profissional service .thank you
Date: August 8, 2025
Website: Google
This Mister Transmission location is...
Tristan Noa
This Mister Transmission location is an absolute gem. Joe and his team saved me when my car was facing a severely damaged transmission due to a complicated problem. They guided me in determining the most effective and budget-friendly solution. The expertise of the technicians and staff is truly remarkable and extensive, all while being customer friendly and kind. Thank you for helping me with my Toyota rav 4
Date: June 3, 2025
Website: Google
I brought my car there...
Lisa C
I brought my car there for the first time and was treated as if I were a repeat customer. Extremely helpful and transparent for the work my car needed. I have taken my car elsewhere for work to be completed, and Giuliano understood and even prompted me to ask specific questions for the rebuild of my transmission with another garage.I highly recommend their services and staff. My own mechanic charged me to inform me of the problem, ($150.00) but Giuliano did not charge me at all to provide details of the work required on my car and he provided me with an accurate quote for the work.Thank you so much, Giuliano. I wish more places were as honest as you.
Date: June 2, 2025
Website: Google
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