(905) 828-1111

3090 Woodchester Drive Mississauga, ON L5L 1W9

Mississauga Woodchester Drive Rating 4.6/5 - 11 Reviews

Transmission Repair & Service Mississauga, 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.

Learn More
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.

Learn More
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Customer Reviews
Giorgio, a class act, he...
Dickson Zee
Giorgio, a class act, he took the time to diagnose my issue twice before open up the transmission. I saved unnecessary cost of a transmission repair, car repair are troublesome for seniors. Thank you.
Date: May 4, 2026
Website: Google
Expert
Mahmoud Alawamleh
Expert
Date: April 21, 2026
Website: Google
Highly recommended! If you are...
Johnny Arcangel
Highly recommended! If you are looking for a trustworthy place and Friendly Neighborhood shop to have your vehicle looked at and taken care of, this is the place. Giorgio was more than helpful in helping me Diagnose the transmission on my 2011 Sienna that the Toyota dealership called that it needed replacement when it did not even need it. I am very happy of how I was taken care of and will recommend him and his shop to everyone i know. Thank you once again!
Date: April 6, 2026
Website: Google
What can I say about...
Robert Boem
What can I say about this place that hasn't been said already in the reviews.I took my 2019 nissan rogue in thinking it was a transmission problem.Giorgio and I went for a test drive and he honestly didn't think it was a tranny problem. He gave me a couple of recommendations to try before I bring it in for an appointment. Hard to find an honest mechanic these days. Thanks so much Giorgio I will definitely be back to see you if the problem doesn't get resolved.
Date: March 30, 2026
Website: Google
Thank you, Giorgio! An honest...
Bobh Yyz
Thank you, Giorgio! An honest operator…I stopped by his Mister Transmission as a mechanic diagnosed a slow leak under my car as transmission fluid.Regardless of being tied up, Giorgio came out front to my Jeep Wrangler, crawled under, came back up, and said looks and smells like oil.He suggested the auto service shop next unit over. We went in and our explained the situation to the operator. I’m in good hands with the service shop now.Bottom line: Giorgio’s good turn, at no cost to me, quickly helped steered me in the right direction.
Date: March 6, 2026
Website: Google
I was having an issue...
Kawarbir Padam
I was having an issue with my 2012 Jeep Liberty, possibly related to a sensor. He diagnosed and fixed it the same day, I’m really impressed with the quick and efficient service!
Date: March 3, 2026
Website: Google
Went to Mister Transmission on...
Tony Brags
Went to Mister Transmission on Woodchester Dr. after my daughter's 2015 Honda Civic broke down on the road with no traction going forward or reverse. My decision was based on positive customers' reviews of the business on Google. Explained the problem to Giorgio who asked me to bring the vehicle in for inspection. After I had the vehicle towed there, Giorgio soon called me and confirmed that the problem was a broken axle. His repair quote for cost and time was reasonable and his manner was upfront and professional so I also asked for the transmission fluid drain and refill to be done while the vehicle was in the shop. I left the shop a satisfied customer and would recommend this business for the good customer service delivered there.
Date: February 1, 2026
Website: Google
This Mister Transmission came highly...
Joshua Santos
This Mister Transmission came highly recommended by a few mechanics that I know and now I know why. After having my Fiance's Transmission replaced here last year, I recently needed to bring my Jeep in. Giorgio went above and beyond finding me a good replacement transmission at a very reasonable price (same as he did for my Fiance's car), but also went out of his way to get me a deal on a windshield replacement at another shop when he noticed mine was cracked. If you are having issues with your transmission and need someone who is trustworthy and reliable, look nowhere else. This place gets it done with minimal damage to your wallet.
Date: February 1, 2026
Website: Google
5 star . they know...
The S.
5 star . they know what they are doing. saved me thousands. everyone else told me i needed a transmission when it was just a misfire . thank god i found them
Date: January 29, 2026
Website: Yelp
Giorgio really knows what he’s...
Bilal Mirza
Giorgio really knows what he’s doing. While other shops were quick to suggest an expensive transmission rebuild on my Buick Lucerne, he actually took the time to assess the problem properly. He confidently explained that the transmission was fine and that the real issue was a misfire—and he was completely right. He saved me a lot of money and unnecessary hassle. Highly recommend him.
Date: January 23, 2026
Website: Google
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