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
Went there couple weeks ago...
David Mityurin
Went there couple weeks ago because I had a problem with my Transmission. George was very helpful to check out my car. He tried to get me the cheapest and the best solution possible. At the end, the problem was fixed. Great job and knowledgable people work there. No issues I highly recommend people to go there if they have problems with their Transmission.
Date: May 30, 2026
Website: Google
Had a full transmission rebuild...
Will Haws
Had a full transmission rebuild done on a ford escape which was completed in good time and some other parts requiring repairs where replaced at no charge. The young lady on the desk was very pleasant, friendly and helpful.
Date: May 30, 2026
Website: Google
TLDR; knowledgeable, helpful, patiently answered...
Martha
TLDR; knowledgeable, helpful, patiently answered all questions, only repaired what was deemed necessary and was agreed upon, price seemed fair. would recommend! I took my car in to be checked for transmission issues. Everyone was helpful, respectful, patient, and knowledgeable. Aki personally took my car for a road test and even asked me to come along so that I could help point out the issues I was experiencing. When they lifted my car to inspect, they actually showed me the underbody of the car and pointed out what looked ok and what needed to be repaired and why. They even agreed to repair a part that was not anticipated - they ordered the part on the spot and replaced it, even though they were closing in less than 2 hours (and it was Friday). I really appreciated not having to return a second time. In my experience as a woman, I have found mechanic shops to either dismiss my concerns and questions or assume I know nothing about cars and recommend repairs that aren't necessary. Mister Transmission was the opposite. I felt respected and my concerns were taken seriously, while not taken advantage of. I will return in the future if needed and would recommend this location to anyone who asks. Thanks guys!
Date: May 29, 2026
Website: Google
TLDR; knowledgeable, helpful, patiently answered...
Martha
TLDR; knowledgeable, helpful, patiently answered all questions, only repaired what was deemed necessary and was agreed upon, price seemed fair. would recommend! I took my car in to be checked for transmission issues. Everyone was helpful, respectful, patient, and knowledgeable. Aki personally took my car for a road test and even asked me to come along so that I could help point out the issues I was experiencing. When they lifted my car to inspect, they actually showed me the underbody of the car and pointed out what looked ok and what needed to be repaired and why. They even agreed to repair a part that was not anticipated - they ordered the part on the spot and replaced it, even though they were closing in less than 2 hours (and it was Friday). I really appreciated not having to return a second time. In my experience as a woman, I have found mechanic shops to either dismiss my concerns and questions or assume I know nothing about cars and recommend repairs that aren't necessary. Mister Transmission was the opposite. I felt respected and my concerns were taken seriously, while not taken advantage of. I will return in the future if needed and would recommend this location to anyone who asks. Thanks guys!
Date: May 29, 2026
Website: Google
I didn't give them an...
Jennifer Kalenuik
I didn't give them an easy task. 1988 Chevy G20 with bearings gone in the rear diff. They went above and beyond not just to find the parts but also finish the repair in only a day. Communication was outstanding as well. Thank you so much guys!!!
Date: May 29, 2026
Website: Google
Create me a humble review...
Venisa Esposo
Create me a humble review for Mister Transmission, we had our Honda Odyssey looked at and repaired here and it was very good
Date: May 29, 2026
Website: Google
Amazing and very trustworthy technicians....
Minnie L
Amazing and very trustworthy technicians. They are the experts with the car issues..mostly TRUSTWORTHY AND RELIABLE!
Date: May 29, 2026
Website: Google
Awesome shop. Explained everything to...
Ethan Fleger
Awesome shop. Explained everything to me perfectly, although i’m an idiot when it comes to understanding how most of the transmission stuff works. 100% recommend getting your car checked out here
Date: May 28, 2026
Website: Google
Communication was easy, my car...
Trisha Girard
Communication was easy, my car was fixed quickly and the pricing was very reasonable.
Date: May 28, 2026
Website: Google
Frank has a friendly professional...
John Bulger
Frank has a friendly professional personality Tom (repair man) explained what he found and suggested other items for future repairs This place is fantastic and I would recommend to everyone
Date: May 28, 2026
Website: Google
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