Transmission Repair & Service Hamilton, 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
image-reviews image-reviews
Customer Reviews
An exceptional and professional service...
Adam Avery
An exceptional and professional service by Dan and his team. The truck transmission blew on a weekend, Dan went above and beyond, returned my calls out of hours and we were back on the road in a matters of days.
Date: June 5, 2023
Website: Google
I took my car for...
Brianne Miller
I took my car for repair. I had a transmission issue or so I thought and they ended up diagnosing my car and said it was an engine misfire not transmission problem really honest place they were professional and great customer service, didnt even charge me a diagnostic fee even provided me with shuttle their and back, I highly recommend Dan and this Mr transmission location
Date: June 2, 2023
Website: Google
My old car, a 2013...
Hugh Clark
My old car, a 2013 Dodge Charger developed a mid-shift that only happened when the car was cold and it was shifting up into 3rd or 4th gear for the first time each day - it would stumble badly, but then it would be fine for the rest of the day. My regular garage specifically recommended I go to this Mr. Transmission, so there I went. If they would have told me that it would be 5,000 for a rebuild I would have said “Ok”. But they diagnosed this car over a couple of cold cycle mornings and said “you may as well just drive it as long as you can put up with a minor mis-shift, otherwise you would be wasting your money to rebuild it”. So that’s what I did - I drove it for 18 months and it never got any worse and I ended up getting a great trade value for it. These guys are honest and have my deepest respect.
Date: June 1, 2023
Website: Google
Dan was amazing to work...
Taylor Lavigne
Dan was amazing to work with! He was honest with what repairs needed to be done with no bs, like other shops that had a long list of repairs that didn’t need done. 10/10 recommend
Date: May 25, 2023
Website: Google
Amazing service time great communication...
Brandon Beaver
Amazing service time great communication swaped my engine and put in a new one fairly quick and dealt with global warranty for me
Date: May 16, 2023
Website: Google
My fiancé and I have...
Nicki Kirchmayer
My fiancé and I have a 2017 Ford focus SE, the car kept revving, it wouldn’t change gears and it wouldn’t go into reverse. I called Mr transmission on a Saturday and left a voicemail knowing they weren't open. Dan called me about an hour later, he said the phone was forwarded to his phone. I told him the problem we where having and he instantly knew what the problem was, and reassured me it wasn’t the whole transmission. Dan stated that he has done a few ford focuses and it sounds like the same problem (the actuator clutch). We took the car in on the Monday and Dan had it in and diagnosed quickly, he called to let us know that it was what he thought it was and the cost. He also fixed the starter which was a different issue but none the less he fixed what needed to be fixed. Dan was amazing throughout our entire transaction, I highly recommend going to this Mr Transmission.
Date: May 15, 2023
Website: Google
Dan at Mister Transmission on...
Kristine Sixteen
Dan at Mister Transmission on Centennial Parkway is a ROCK STAR. Stayed late on a Friday to fix my car so I would have it for an important appointment the next day. That is amazing customer service, and I will forever be grateful
Date: May 12, 2023
Website: Google
Dan was very professional in...
Richie A
Dan was very professional in helping me get to the bottom of my transmission issues and got my vehicle back to me in a timely manner.
Date: May 5, 2023
Website: Google
They have excellent customer service...
Tracy Beckham
They have excellent customer service at this location. Dan went above and beyond to help me get the best option to replace my transmission. Definitely will use them for service again.
Date: May 1, 2023
Website: Google
I took the car in...
Lance Lincoln
I took the car in because I had issues with my transmission, not only did they fix it but they fixed my lower control arm and adjusted my brakes, these are problems that were missed on the safety, Dan also dealt with my warranty company as well as made sure I had the financing to get my car back with no out of pocket funds, they worked late making sure I had the car on the day they said, thank you Dan and Bob for all your hard work.
Date: March 24, 2023
Website: Google
Transmission Service
Recent Blogs
What To Know About Transmission Rebuilds
A transmission rebuild is a major type of repair and it’s a big decision to make as
Read More
June 06, 2023
What To Do If Your Transmission Is Slipp...
A slipping transmission is one of the most common transmission problems, but what
Read More
May 30, 2023
4 Key Transmission Services Mister Trans...
If you need your transmission serviced, there’s no better place to go than Mister
Read More
May 23, 2023
What You Should Know About Differential ...
Discover what you need to know about differential service and repair and learn what
Read More
May 16, 2023
Why Do Transmission Clutches Need So Muc...
Learn about the role the clutch plays in the transmission and discover why
Read More
May 09, 2023
Everything You Need To Know About Transm...
Learn about the transmission overhaul, discover what this transmission service
Read More
May 02, 2023
Manual Transmission Repair FAQs
Learn all about manual transmission repair by reading the answers to some of the most
Read More
April 25, 2023
Maintain Your Automatic Transmission wit...
An automatic transmission is vital to modern vehicles, providing a seamless driving
Read More
April 18, 2023
Is CVT Transmission Repair Expensive?
If you’ve recently bought a vehicle with a CVT, or you’re considering buying one,
Read More
March 27, 2023
What Is A Solenoid In A Transmission?
If you’ve been reading about transmissions, how they work, and about common
Read More
March 24, 2023