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.

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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.

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Customer Reviews
This is my experience with...
Niruja N
This is my experience with Whitby Mr. Transmission. I spoke to Denise over the phone and dropped off my 2019 Nissan to have them look at a leak. It was suggested that I bring back my vehicle to the previous repair shop so that I do not have to pay anything extra. Denise went above & beyond, their team called the other shop informing them of the problem as I do not know much about vehicle repairs/parts. Denise was soo helpful , I cannot thank her enough. When you do not know where to turn, and you come across genuine people who actually LISTEN to your concern, it means a lot. Splendid Customer Service. You are an awesome soul Denise !
Date: December 3, 2024
Website: Google
Excellent service at the right...
Bryan Baar
Excellent service at the right price. Just had my 2017 Ram transmission serviced. I had my regular local mechanic quote servicing the transmission and it was almost double! I recommend Mr transmission on Exeter for this specialized service.
Date: December 3, 2024
Website: Google
I had a great experience...
David Brown
I had a great experience with Uli and his team at the Queensway Etobicoke location. My 2015 Hyundai Santa Fe required a replacement transfer case and transmission and I was ready to sell it for parts but Uli presented me with different options allowing me to ultimately make an informed decision on an affordable used replacement. Uli and his team are consummate professionals, courteous and respectful. I will take my wife's newer Subaru here for transmission service in a heartbeat. Thank you, Uli and team!
Date: December 3, 2024
Website: Google
These guys are the best....
Dan Zaitzow
These guys are the best. They were incredibly communicative, keeping me updated on every step. They dealt with my warranty provider for me, making sure I had the most coverage possible. On top of being generally good people, their work is also top notch. I highly recommend!
Date: December 2, 2024
Website: Google
Excellent service, great price, quick...
Ryan At
Excellent service, great price, quick turn around time. Gary is the man! He was excellent explaining the issue sand work to be done and also gave ne a great price on premium breaks.
Date: December 2, 2024
Website: Google
My transmission decided to go...
Toni Fischer
My transmission decided to go after 160k. Mr transmission dealt with my warranty company and were a pleasure to deal with. I highly recommend!
Date: December 1, 2024
Website: Google
Some people just don't get...
Gary Thompson
Some people just don't get it! Transmission fluid in my mind, need's to be changed the same recommended time as oil changes!!!!!!! Especially if you have over 100 thousand kilometers!!! Also in my mind always have a professional handle transmission repairs. Thankfully this transmission repair shop is full of them 🫡
Date: December 1, 2024
Website: Google
Best experince ive had with...
Tristan Stanton
Best experince ive had with a mechanic shop! I braught my 2018 jeep cherokee trailhawk in for a transmission issue, the warrenty company, to say the least, was very dificult. That being said the wonderful people at mr.transmission not only faught on my behalf with the warrenty company, but did amazing work! Maintaind amazing contact the entire process (2 month long process). Not enough good can be said about Mr.transmission in Moncton !
Date: November 30, 2024
Website: Google
Amazing experience.Vivian was so awesome...
Bill Neumann
Amazing experience.Vivian was so awesome right from the start from booking a tow to the job getting finished.Raman took the time to show and explain what actually happened.Will definitely recommend to friends and family.Once again great job.
Date: November 30, 2024
Website: Google
Great people; Solid Service! Sanjay...
Big Bag
Great people; Solid Service! Sanjay and his team dug me out of a hole when I was desperate. I was lucky to get in when every other place had two week waits. They had me back on the road in a few days. My new transmission “Guy!” Highly Recommend!
Date: November 29, 2024
Website: Google
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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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