How Do I Know If My Transmission Needs To Be Replaced?

June 3, 2020 | By Mister Transmission

How Do I Know If My Transmission Needs To Be Replaced?

If you can avoid it, you really do not want to replace your transmission. Transmission replacement is not cheap. However, sometimes it is your best option. But how do you know if your transmission needs to be replaced?

Transmission problems can manifest in dozens of ways. It is always sensible to keep your eye (and ear) out for possible problems so you can spot them before they become so big that they require you to replace your transmission.

Transmissions are intricate pieces of machinery. In fact, they are dozens of different parts of machinery all working in congruence with one another. This means there is a lot that can go wrong. But like with most things, transmission problems start off small before they get big. Only big problems require transmission replacement so it would be wise to nip small problems in the bud.

See patches of red liquid underneath your car as you pull out of your driveway? That is transmission fluid and it means you have a leak. Top up your fluid and visit a transmission shop as soon as possible to avoid further damage. Low levels of transmission fluid can do enough damage that you may need to replace your transmission. Furthermore, listen for funny noises —whirring, humming, buzzing, grinding, etc.— which are symptomatic of transmission problems. Slipping out of gear or difficulty shifting gears are also symptoms of transmission problems.

Do any of these above transmission problems mean that your transmission needs to be replaced?

Not necessarily. Many of these problems can be solved with relatively minor fixes. Sometimes you just need your transmission fluid flushed out and replaced. Other times, the problem part or parts are accessible while the transmission remains in the chassis, meaning they can be swapped out rather easily.

But what if a transmission problem can’t be fixed with new transmission fluid or replacing an accessible part? Does it have to be replaced then?

Maybe. If the transmission techs need to remove the transmission from the body of the vehicle, then you are looking at a more involved repair. Sometimes you can get lucky and the techs will be able to narrow the problem down to one or two components that can be replaced once the transmission is removed. However, some transmissions are so damaged that they need to be replaced altogether. Other times, transmissions can be overhauled, in which each component is removed, inspected, and replaced.

Mister Transmission

At Mister Transmission, we often recommend transmission overhauls, replacing one with another transmission of unknown provenance. But every case is different and you can’t know if replacement is necessary right away. To learn more about transmission replacement, please contact us.

Mister Transmission Team

The Mister Transmission team consists of certified transmission specialists with decades of combined experience in diagnosing, repairing, and maintaining automatic and manual transmissions.

With over 60 years of service across Canada, our experts provide trusted, accurate, and up-to-date automotive advice to help drivers make informed decisions about their vehicles.

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Customer Reviews
Excellent. Service
Sheila Bredo
Excellent. Service
Date: September 19, 2026
Website: Google
Very informative
Charlotte Charlotteseely@hotmail.com
Very informative
Date: September 18, 2026
Website: Google
Sanjay and his technician were...
Randy Johnston
Sanjay and his technician were great. The tech was very knowledgeable with many years of experience. He took the time to explain to me exactly what the problem was, and what needed to be done to fix it. Transmission work is typically very expensive and I felt the price for the job I was quoted was very fair. I recommend this Mr. Transmission shop.
Date: September 18, 2026
Website: Google
The team went above and...
Dionne Greaves
The team went above and beyond from the moment my vehicle arrived, I worked mainly with Chris and then Ken but everyone I had contact with was amazing. They understood the vehicle and performed excellent service start to finish. I would definately recommend anyone to go Mr. Transmission in Pickering.
Date: September 18, 2026
Website: Google
Matt was such a great...
Crissy Moore
Matt was such a great help! He took thr time to source the parts I needed and gave me some great advice along the way. It's noce to find an honest, reliable mechanic you can trust. I'll definitely be going back to Matt and his team for all my car needs!
Date: September 18, 2026
Website: Google
Fixed my truck perfectly 10/10...
Jacob Ursel
Fixed my truck perfectly 10/10 service super friendly super fast great people
Date: September 18, 2026
Website: Google
I went to the Mister...
Claudiovw
I went to the Mister Transmission store #160, near Dixie/hwy401, to have the transmission inspected on my 2015 Dodge Grand Caravan. As soon as you walk in the door you are greeted with a smile and a sincere "how are you today". The inspection was thorough and the time was taken to explain the process and findings in detail. A report with pictures was also provided by email. Thank You to Jody, Aki, and the Technicians who took care of me!
Date: September 17, 2026
Website: Google
I went to the Mister...
Claudiovw
I went to the Mister Transmission store #160, near Dixie/hwy401, to have the transmission inspected on my 2015 Dodge Grand Caravan. As soon as you walk in the door you are greeted with a smile and a sincere "how are you today". The inspection was thorough and the time was taken to explain the process and findings in detail. A report with pictures was also provided by email. Thank You to Jody, Aki, and the Technicians who took care of me!
Date: September 17, 2026
Website: Google
Had to get my transmission...
Manitoba Hindu
Had to get my transmission fixed.for 2015 Hyundai. Happy with the overall experience. Got a loaner car which also helped.
Date: September 17, 2026
Website: Google
I went to the Mister...
Claudiovw
I went to the Mister Transmission store #160, near Dixie/hwy401, to have the transmission inspected on my 2015 Dodge Grand Caravan. As soon as you walk in the door you are greeted with a smile and a sincere "how are you today". The inspection was thorough and the time was taken to explain the process and findings in detail. A report with pictures was also provided by email. Thank You to Jody, Aki, and the Technicians who took care of me!
Date: September 17, 2026
Website: Google
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