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.

Mechanic carrepair starting carcar on the road issues


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
Frank and the crew in Coquitlam did
Harold P
Frank and the crew in Coquitlam did a great job and very quickly repaired my Jeep.
Date: July 2, 2020
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Andrew Ouellette was amazing. Serv
Steve R
Andrew Ouellette was amazing. Service was booked the next day. dropped the car off at 1pm. Received a call on the work required by 2pm and picked up the car by 4pm. A great service experience!
Date: July 1, 2020
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Great customer service
Darin K
Great customer service
Date: July 1, 2020
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Great service
Greg K
Great service
Date: June 30, 2020
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Ken is great - knowledgeable skille
Kyle T
Ken is great - knowledgeable skilled friendly and honest and fair. What more could you want?
Date: June 30, 2020
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Chris & Kurt were Awesome they both
MARC M
Chris & Kurt were Awesome they both went above and beyond ! From Kurt using the Diagnostic tool before they opened as I needed to get to work by 8:50 AM to Chris looking into my options & working on my Transmission They are both incredible ! you have a set of Ambassadors for Mister Transmission that live a vision of caring for the well being of their clients. I will defiantly refer people to them as they are without a doubt the best of the best ! Thank you again Kurt and Chris ! You guys deserve an Award ! Regards Marc
Date: June 29, 2020
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Pleased with professional and frien
Kim G
Pleased with professional and friendly service and same day repair
Date: June 27, 2020
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As always the service was great, th
Tyson T
As always the service was great, the right work that needed to be done was done.
Date: June 27, 2020
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So far, repair seems fine
Betty H
So far, repair seems fine
Date: June 26, 2020
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The team communicated each step in
Tracy D
The team communicated each step in the process. They quoted higher than what it actually cost me. They brought out the hardware to explain and show us what the issues were. They answered all questions that my son and I both had. It definitely made is less stressful as the vehicle in question has been a huge cost factor.
Date: June 26, 2020
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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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