Transmission Repair & Service Pickering, 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
Super helpful and friendly. Got...
Prav Raj
Super helpful and friendly. Got my civic fixed here. Thanks Ken and team! Would highly recommend!
Date: April 9, 2024
Website: Google
Good timely service, transmission rebuilt...
Kevin C
Good timely service, transmission rebuilt in 3 days, price was fair and performance is good again. I noticed a small drip the following week and we put it on the hoist to discover transfer case seal was the source of the dripping. The transfer case wasn't part of the job but it was removed to service the transmission. Ken ordered a seal as I waited and installed it two days later at no charge, awesome. The shop blew me away when they diagnosed my lack of 4WD and found a bad vacuum actuator. I tried to pay for the diagnostics and they would not take my money. I can't remember the last time I got a freebie at a shop. Highly recommend Ken, Chris and the staff
Date: November 15, 2023
Website: Google
Thank you never seems enough...
Mike O'Neill
Thank you never seems enough when a company goes way above and beyond to help a customer. Ken is one of those special service people we all need. If I could give 6 Stars I would .
Date: October 21, 2023
Website: Google
I had a leak of...
Jeff H.
I had a leak of what appeared to be transmission fluid and dropped in to see if the leak could be identified. Ken managed to squeeze me in and one of his technicians put my Corolla up on the hoist and diagnosed the problem in minutes. The problem was quickly resolved and I was on my way. Ken and staff are very friendly, professional, and skilled. I wouldn't hesitate to use their services again should the need arise. Thanks guys!!
Date: October 16, 2023
Website: Yelp
Anytime I bring my car...
Sarah Be
Anytime I bring my car here I get great honest service. Easy to get an appointment and satisfied with service. Recently took in to get my transmission checked.
Date: July 19, 2023
Website: Google
First experience with Mister Transmission,...
Nando Villatoro
First experience with Mister Transmission, and I was very impressed from the moment I called and inquired about an appointment. I was greeted by Ken at the shop, and we took a test drive to see if I should've been worried. He assured me I was fine but also helped price out some transmissions on the off chance something went wrong. I like the fact that he was open and honest and didn't try to sell me what I didn't need. I hope not to go back, but if I have a transmission issue, I know I'll come here.
Date: June 9, 2023
Website: Google
Friendly, knowledgeable, honest and trustworthy....
Rebecca Hansen
Friendly, knowledgeable, honest and trustworthy. Simply the best! ⭐
Date: May 5, 2023
Website: Google
Ken and his team were...
Nick Dillon
Ken and his team were amazing. I had an issue with my Honda CRV that according to one of their service advisors, Parkway Honda felt they could not fix, so upon recommendation from my brother, I went to MT. Ken did a free road test, and although busy, he still dropped me off at work. He diagnosed the issue. The left front wheel bearing needed to be replaced. Thank you for your professional and personable service.
Date: April 8, 2023
Website: Google
A+ highly recommended, professional and...
Shane Ramsden
A+ highly recommended, professional and quick service. They took the time to answer any questions and the price was extremely reasonable. They rebuilt my 4r100 transmission the next day
Date: April 6, 2023
Website: Google
I recently had a transmission...
Chris Parr
I recently had a transmission problem and everyone I spoke to told me the vehicle isn’t worth repairing as the transmission was done, it was a write off. Until I spoke with Ken and his team. They made me feel comfortable and confident that I didn’t need a repair that I can’t exactly afford. They were the only ones to really listen to my description of the issue and ensured me that it can be fixed and not to panic. The honesty and integrity this business showed me is so refreshing. I would recommend Ken and this Mr. Transmission to anyone. Thank you so much guys. My problem has been fixed and at a very reasonable price. Absolutely excellent
Date: November 4, 2022
Website: Google
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