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
Honest, fair prices and good...
Brendan Caron
Honest, fair prices and good work.
Date: August 10, 2021
Website: Google
We can't THANK Mark and...
Lindsay Tribble
We can't THANK Mark and his staff enough for the excellent experience we had getting a rebuilt transmission done there. We were given several options for repair, replacement and rebuild along with the estimate, explained to us all in full detail. We decided the best option for us was a rebuild. The service was fast, friendly and our truck runs brand new! We will return for our servicing now and would highly recommend the team at St. Thomas Mister Transmission for all your needs!
Date: August 9, 2021
Website: Google
Staff were all super friendly...
Cameron Thomson
Staff were all super friendly and very professional! One of my friends is a technician there and I know he does good work.
Date: August 9, 2021
Website: Google
Having boken down near this...
Carol Purdy
Having boken down near this site, I went in to ask if they sold radiator fluid. The manager went and brought my vehicle in, they inspected it and ran a computer diagnostic , and informed me of the problem. As it was not a transmission issue they were unable to help me, yet they went acove and beyond to assist. I waited fora toe truck and went home. They did not chare me a thing, This is the best service I have had in years and would defineately use them if I had transmission issues. I would also highly recommend the business to anyone.
Date: August 9, 2021
Website: Google
Both the Father and son...
Roger Pastora
Both the Father and son are very honest guys. I would recommend anyone to have a great experience here.Service: Transmission
Date: August 8, 2021
Website: Google
Quick, professional, and excellent service...
Chris Heringer
Quick, professional, and excellent service with very friendly staff. no complaintsService: Transmission
Date: August 8, 2021
Website: Google
Thank you Terry & Cam...
Rod Ciccale
Thank you Terry & Cam for your help fixing my transmission problems! I had a great experience with your shop all around! I would highly recommend you and will certainly return should I have any other issues with my transmission. Again, I’m a very happy customer & Thanks! RodService: Transmission
Date: August 8, 2021
Website: Google
I am a diesel mechanic...
Dawson Ferringo-Millson
I am a diesel mechanic and usually do my own work but had a u joint and output seal give out a few days before a backcountry trip, did not have time to complete the repair myself, and no other shop had time. Mister transmission moved some things around and got me mobile a day earlier than their original time frame. Job was done professionally and for a very fair price. They even went over the rest of my truck to ensure it was good before I left without charging me or trying to upsell
Date: August 6, 2021
Website: Google
They did the work quickly...
Lee Esser
They did the work quickly and professionally. Were able to get my vehicle in right away.
Date: August 6, 2021
Website: Google
We've been to Frank's shop...
Dean F.
We've been to Frank's shop a few time with different vehicles and he has consistently provided great service no matter how big or small the job. Highly recommend.
Date: August 6, 2021
Website: Yelp
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.

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