Transmission Repair & Service Peterborough, 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.

Frequently Asked Questions

  • What transmission repair services are offered?
 +

    Mister Transmission Peterborough offers complete repair services including diagnostics, component replacement, rebuilds, and full transmission repair for all vehicle types. Each repair is based on accurate testing to ensure reliable performance and long-lasting results.

  • How do I know if I need transmission repair? +

    Signs include slipping gears, delayed shifting, grinding noises, burning smells, or warning lights. Mister Transmission Peterborough can perform a comprehensive inspection to identify the issue and recommend the most effective repair solution.

  • How long does transmission repair take?
 +

    Repair time varies depending on the severity of the issue. Minor repairs may be completed quickly, while complex rebuilds take longer. Mister Transmission Peterborough focuses on efficient service without compromising quality or accuracy.

  • Is transmission repair better than replacement? +

    In many cases, repairing specific components is more cost-effective than full replacement. Mister Transmission Peterborough evaluates your transmission condition and recommends the most practical and affordable solution based on diagnostics.

  • Does transmission repair come with a warranty?
 +

    Yes, Mister Transmission Peterborough offers warranty-backed repairs, providing confidence and peace of mind. Coverage depends on the type of service performed, ensuring your vehicle remains protected after repairs are completed.

View All FAQs
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
I wish I could put...
Heather Hunter
I wish I could put 10/10 stars. This place is excellent and I highly recommend them. I was having issues with my vehicle lagging on hills and on start off. I believed it may have been an exhaust issue which could have been costly. Joe, the front manager, is an awesome individual. Friendly and informative. One of his workers took the vehicle for a drive and came back with a diagnosis. The air filter box had not been closed properly, affecting the car's ability to receive enough air. It was fixed free of charge. Wow!! Any other mechanic would have charged me for the correction of the box. To future customers. You will not be disappointed. Keep up the awesome customer service Mister Transmission!!!
Date: June 3, 2026
Website: Google
We had an issue with...
Susan Feeney
We had an issue with the vehicle and they were very kind and had a look at it again. They were very accommodating. Fixed the issue. Thanks to a great team.
Date: May 22, 2026
Website: Google
My vehicle totally shut down...
Arlene Peever
My vehicle totally shut down on Hwy 115 and the only display message was service transmission so I had it towed to Mr Transmission in Peterborough. Turns out that it was not the transmission after being on the diagnostic machine for hours but electrical. Joe then had it towed to the GMC dealership in Lindsay where they determined it to be the fuse block and electrical module. Fixed and then brought back to Peterborough. Definitely went above and beyond for me. Would highly recommend. Sincerely, Arlene
Date: May 12, 2026
Website: Google
Hands down best place to...
Andrew Edwards
Hands down best place to go !!! Rebuilt my truck transmission , rebuilt my daughters Bronco Transmission and service my C5 corvette Transmission . I am a mechanic by trade and I only trust these guys work on my vehicles .
Date: April 20, 2026
Website: Google
Great place! Very nice staff....
Mike A
Great place! Very nice staff. They really know there stuff!!! Probably most talented mechanics in town! If you need anything transmission related highly recommend this place.
Date: April 16, 2026
Website: Google
These guys are great honestly...
Kyle Tanner
These guys are great honestly there is nothing good about a failed transmission but they did everything possible to soften the blow. Service was fast and efficient gave me some options and helped try and make it affordable.
Date: April 9, 2026
Website: Google
Fantastic service and customer treatment!...
Bryan Weir
Fantastic service and customer treatment! I've been at this shop before and I'll keep coming back because of how customers are served. You're not a number, but considered like family.
Date: April 8, 2026
Website: Google
I take my car to...
Tia Grills
I take my car to Brad first, every single time. Brad has saved me so much grief, time, and money. I earnestly recommend this business to all of my friends and family. Now I would like to recommend them to the strangers of Google. Do yourself a favour and come here. Brad has eloquently frankensteined my car that would’ve been put down a while ago without him. Thank you Brad!
Date: March 17, 2026
Website: Google
I’ve been to Mister Transmission...
Randy G
I’ve been to Mister Transmission in Peterborough twice. The first time I had my trucks transmission, torque converter and differential fluids changed. The second time I was looking for a transmission part for an old vehicle. Both times the service was excellent and the staff were very knowledgeable and friendly. The price for the fluid change was great, they refused to take anything for the transmission part. Thank you
Date: March 10, 2026
Website: Google
GOOD SERVICE , ON A...
David C.F.
GOOD SERVICE , ON A TIMELY FASHION . VERY REASONABLE PRICES
Date: March 4, 2026
Website: Google
Mister Transmission Blogs
Recent Blogs
How Transmission Repair Works And When Y...
Transmission repair fixes a specific failed part inside the transmission, like a
Read More
June 15, 2026
Transmission Problems You Should Never I...
The transmission problems you should never ignore are slipping gears, delayed or hard
Read More
June 08, 2026
Transmission Fluid Flush VS Change: Whic...
Transmission fluid service is one of those maintenance items that most vehicle owners
Read More
May 29, 2026
Transmission Shop Services Explained: Fr...
Most drivers don't think about their transmission until something goes wrong. That's
Read More
May 22, 2026
Transmission Rebuild Cost VS Replacement...
One of the most stressful moments a Ford owner can face is sitting across from a
Read More
May 14, 2026
Ford Transmission Replacement: Signs You...
Ford vehicles are built to handle demanding conditions — from city commutes in
Read More
May 07, 2026
Transmission Overheating: Why It Happens...
Transmission overheating is one of the most preventable causes of major vehicle
Read More
April 30, 2026
Manual VS Automatic Transmission Repairs...
Your transmission is doing a lot of work every time you drive — shifting power,
Read More
April 27, 2026
Dodge Transmission Replacement Cost: Wha...
Dodge vehicles have built a strong reputation for performance and durability —
Read More
April 16, 2026
Transmission Diagnostic Testing: How Exp...
Transmission problems are rarely sudden. Most failures develop quietly — slipping
Read More
April 07, 2026