Are Automatic Transmission Repairs Complicated?

September 6, 2019 | By Mister Transmission

Are Automatic Transmission Repairs Complicated?

One of the selling points of the automatic transmission is that it is easier to drive. For the driver, an automatic transmission is simpler to handle than a manual transmission. In order to facilitate this ease of use, there is more work to be done internally within the transmission, in as certain processes are automated (hence the term “automatic”). But does this mean it’s harder to repair an automatic transmission as opposed to a manual transmission? Are automatic transmission repairs complicated?

The Automatic Transmission

Automatic transmissions automatically change gear ratios as the vehicle is in motion. This frees up the driver from having to shift gears manually, as one would when operating a manual transmission. The transmission allows the engine to provide a range of speed and torque outputs necessary for vehicular travel. By far the most common type of automatic transmission is the hydraulic automatic transmission. Hydraulic automatic transmissions utilize fluid coupling and accomplish gear changes by hydraulically locking and unlocking a series of planetary gears. Manual transmissions use a friction clutch.

History Of The Automatic Transmission

Did you know that the automatic transmission was actually invented by a Canadian? It’s true. Alfred Munro first patented an automatic transmission way back in 1921. However, Munro’s design used compressed air and was not strong enough to ever achieve commercial application. It was not until 1940 when General Motors introduced its “Hydra-Matic” transmission in its Oldsmobile that automatic transmissions first became widely available to the public.

Signs Your Automatic Transmission Needs Repair

Your automatic transmission might require a repair if you notice it doing any of the following:

  • Overheating
  • Changing gears at high RPMS
  • Slipping, grinding, or jumping when you’re accelerating and shifting gears
  • Contaminated transmission fluid during a pan examination and/or if you have a fluid leak
  • Your “Check Engine” light is on (seriously, don’t ignore this)

Automatic Transmission Repair

So now we know the basics of the automatic transmission, a little automatic transmission history, and some of the key signs that an automatic transmission is in need of repair, but what should we know about transmission repair? Are transmission repairs complicated? The answer is . . . it depends. Automatic transmission repairs are generally more complicated than manual transmission repairs; it all depends on what and where the problem is.

There is one important factor to this, though. Newer automatic transmission often requires a repair process that is quite complicated given that it needs specialized technology. Specifically, a computer. Most new automatic transmissions are heavily computerized such that a technician’s first step when repairing an automatic transmission is to use diagnostic technology to interface with a vehicle’s on-board computer. This process produces a code that indicates where the problem is. As part of any automatic transmission repair, the vehicle will then be taken for a road test so that the technician can monitor its behavior. After this, the required automatic transmission repair is often minor; it’s the diagnostic process that is key.

Get In Touch

If you suspect your automatic transmission is in need of repair, please don’t hesitate to get it checked out. Please contact us at Mister Transmission and we can have a look at it and give you advice on how best to care for your automatic transmission going forward.

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Customer Reviews
Always a great experience here....
Crystal Garbutt
Always a great experience here. The manager goes above and beyond to make sure you are satisfied with the outcome. Special thanks to Dan and his team for making sure my daughter’s car was safe for her and my grandbabies to drive. It’s nice to find a mechanic you can trust and feel confident in. Highly recommend this location.
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My car faced a shifter...
Victor Fernandes
My car faced a shifter malfunction related issue. I was referred to Mister Transmission and I must say that Aki and his crew went above and beyond to assist. Every member of the team including Aki, Victor at Front Desk, the Technicians working diligently on the workshop floor were all supportive and keen to assist. Aki also took the time to explain the issue in detail and also demonstrated the problem my car faced with a diagrammatic representation to help me better understand. I am extremely pleased with the levels of service, support and reassurance offered. In addition, Aki’s knowledge of transmission systems reigns supreme and it is evident that this expertise has been acquired practicing his trade over decades. Customers benefit most from this experience as Aki has an extremely thorough understanding and a deep sense of what is causing the issue on hand. Would strongly recommend Mister Transmission (Dundas and Shawson/Britannia) in Mississauga.
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Mister transmission was absolutely amazing...
CheriPie
Mister transmission was absolutely amazing to work with. I was freaking out and stressed knowing how expensive a transmission issue can be. I was referred from my mechanic for transmission issues and from the beginning of the referral, I was informed of everything that was going on and what they were doing. They were amazing to answer my questions and concerns and were very patient with me while I was able to work out a payment. The lady at the front desk was amazing and so professional and wonderful to talk to. They were able to get my jeep in very quickly and diagnosed. Once they Started the repair. It was so fast. Thank you so much for getting my vehicle back on the road so quickly. I highly recommend them for any transmission service or repair. Just an all around amazing experience. Thank you Mister Transmission!!!
Date: July 10, 2025
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Everyone was exceptional! Very transparent...
Stephanie B
Everyone was exceptional! Very transparent about each step and what they found and what it would cost before hand
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My first experience with Mister...
Natalie And
My first experience with Mister Transmission was great! Their inspection was thorough and they were honest about what actually needed fixed and didn't try to push unnecessary work. Highly recommend
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Great customer service, got in...
Marc S.
Great customer service, got in quicky, problem solved on time and on budget.
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Exter road mister transmission was...
Brian Linhares
Exter road mister transmission was great in servicing my vehicle. Sanjay was great and kind in helping me and fair in pricing. Overall great place to take your vehicle and great customer service
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Barry is one of the...
Josh Anderchek
Barry is one of the best. Straight up, tells you how it is, no swerves or anything.
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Great reliable friendly service
Joe Macdonald
Great reliable friendly service
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I would first like to...
S Williams
I would first like to say the customer service and Mister Transmission is none like I have ever experienced. I had the pleasure of speaking with Denise who was so professional, patient and indescribably kind. Not only did she take the time to detail what my car needed and how long it would take, they took the time to provide alternate cost efficient options. For those looking for transmission repairs , I promise you you will find no better!!!
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