Transmission Repair & Service Woodstock, 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
If your transmission is slipping,...
Alex DeMontmorency
If your transmission is slipping, don't let your mechanic slip one past you; just go to Mr. Transmission in Woodstock. Trav, Jenn, and the entire team are a breath of fresh air in an industry famous for surprise costs. They treated me like a human being rather than a walking ATM. This crew is the real deal and it’s apparent they want to do right by their customers. Honest, fair, and top-tier service. Smooth shifting from here on out.
Date: February 17, 2026
Website: Google
I can’t say enough good...
Nicole
I can’t say enough good things about the team at Mister Transmission. They have been incredibly patient, kind, and genuinely helpful while I’ve been navigating ongoing issues with my vehicle. They consistently go the extra mile and truly care about their customers. Their honesty and integrity stand out, and I’m so grateful for everything they’ve done. I highly recommend them to anyone needing reliable, trustworthy service.
Date: November 14, 2025
Website: Google
I can’t say enough good...
Nicole
I can’t say enough good things about the team at Mister Transmission. They have been incredibly patient, kind, and genuinely helpful while I’ve been navigating ongoing issues with my vehicle. They consistently go the extra mile and truly care about their customers. Their honesty and integrity stand out, and I’m so grateful for everything they’ve done. I highly recommend them to anyone needing reliable, trustworthy service.
Date: November 14, 2025
Website: Google
Vehicle towed to mister transmission,...
Robert Carrier
Vehicle towed to mister transmission, he found the problem immediately. Being atraveler he drove me to a motel and started on my car. Returned my car the next day and also corrected another problem I had, that I was unaware of. I highly recommend this place to everybody his expertise and quick service, also his concern for the safety of his customers.
Date: May 31, 2025
Website: Google
I highly recommend this shop!!!...
Mohit Mohit
I highly recommend this shop!!! A+ Service!! Thank you again Travis!! You are the best!!
Date: May 31, 2025
Website: Google
1000% without any doubt recommend...
Joy Hickox
1000% without any doubt recommend Travis and his team for all your transmission needs!They are knowledgeable and honest!I stopped in there for a diagnostic and quote after paying $180 from my regular mechanic the day before who told me my issues (engine overheating and creaking noise when braking at low speeds) were a transmission issue.Travis took my vehicle for a drive and upon his return, he flat out told me that there was absolutely nothing wrong with my CVT transmission (2018 Honda CR-V)To say this made me incredibly happy would be an understatement. The honesty received here, especially being skeptical going in a woman alone was refreshing and top notch!Thank you so much for being a dependable and honest place for the community to bring their vehicle’s transmission needs to!
Date: May 29, 2025
Website: Google
Very friendly staff and very...
Ian Kittmer
Very friendly staff and very knowledgeable.
Date: May 14, 2025
Website: Google
Very knowledgeable, helpful and friendly,...
Kenny Likins
Very knowledgeable, helpful and friendly, I will recommend this garage to everyone I know. Thanks Travis and Jenn for help with my truck.
Date: May 7, 2025
Website: Google
Diagnosed the issue immediately. Friendly...
Paul Carrigan
Diagnosed the issue immediately. Friendly and knowledgeable. Took care of everything. Highly recommend this place best costumer service ever!
Date: May 5, 2025
Website: Google
Great experience with Travis and...
Joey D
Great experience with Travis and Jenn. Got me back on the road quickly and at a fair price. Highly recommend.
Date: February 26, 2025
Website: Google
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