What Is a Transmission Flush and Do You Need One?

By Mister Transmission

Maximizing the life of your vehicle’s transmission depends on regular maintenance including getting a transmission flush every three years

Among the myriad of moving parts and components that comprise your vehicle’s engine, the transmission is one of the most important, and it could be one of the costliest to repair or replace in the event of a complete breakdown.

The key to ensuring your transmission is in good working order is a matter of regular maintenance which includes getting a transmission flush every three years or as per the information in your owner’s manual.

What is a transmission flush?

Simply put, it’s a process by which transmission fluid is drained, followed by a process of removing all the grit, grime, and sludge that has been building up inside your transmission. Once completed, your old transmission filter is replaced (if accessible), and new transmission fluid is pumped back into your transmission all while adhering to the specifications of the manufacturer.

How to Tell If You Need a Transmission Flush

There are typically a few telltale signs if the automatic transmission in your car, truck, or SUV requires a transmission flush, including:

  • Your transmission fluid is a dark smoky colour and has a burned odour
  • You notice a leak
  • Your vehicle surges or stalls temporarily after being put into gear
  • The gears are slipping
  • You’re having problems changing gears
  • Your transmission is making strange noises

Remember: a transmission flush is a preventative maintenance procedure, not a cure-all for larger problems if your transmission or any of its moving parts are wearing down.

Book an appointment with Canada’s transmission maintenance and repair experts at Mister Transmission.

For more than 50 years, Mister Transmission has kept Canadian motorists on the road by ensuring the transmissions in their vehicles are in tip-top shape. If you have a question about your transmission or want to book a service appointment, contact the Mister Transmission service centre nearest to you.

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Customer Reviews
My rear diff had been...
Rachel Gavin
My rear diff had been whining and sounding terrible for a while... but since I've only had this truck for ~5 months I wasn't sure if it was normal or not. A different transmission shop said it sounded like normal gear noise, and perhaps sounded loud because of a lack of insulation/soundproofing. Well I took their word for it for a while but I still had a feeling something wasn't right - the sound (and my gas mileage) was getting worse, so I gave Mister Transmission in North Van a call. I brought it in the next day, and they were quickly able to diagnose the issue (diff was a mess, basically). They were able to source parts for this somewhat uncommon diff, rebuild it and get it back to me within about 4 business days which is pretty good in my opinion! Communication was great from start to finish. Obviously it wasn't fun having to pay a bunch of money to fix my truck, but I feel the price was fair (thousands of dollars less than it would have cost to bring it to the dealership for a whole new diff) and the price they quoted me once they knew what needed replacing was the price I paid. Best part is, my truck drives so smooth and quiet now! No more terrible whine! I'd definitely recommend Mister Transmission - thanks Bob and Ken and the rest of the gang!
Date: December 2, 2020
Website: Google
rich is a good guy
Matt Adam
rich is a good guy
Date: December 1, 2020
Website: Google
Although it was a minor...
Mario Iacobucci
Although it was a minor repair that some unnamed business botched horribly, this shop was very fair in price and took me in immediately. Thanks
Date: December 1, 2020
Website: Google
I really love this shop....
Clayton Leonard
I really love this shop. I've worked with Nav a few times now and their super professional and well priced. Like I said, love this shop and would highly recommend them!
Date: December 1, 2020
Website: Google
I have been dealing with...
Dan Macinnis
I have been dealing with Frank and Paul at this Mister Transmission storefor over 25 years now and I would have to say one of the most professional, courtious and accomadating automotive business's Ive had the pleasure to deal with ......period.
Date: December 1, 2020
Website: Google
My Caravan transmission was giving...
Aaron Dias
My Caravan transmission was giving a lot of problems and took it to Mr. Transmission, and got it fixed. Thanks to Denise and Sean for their amazing customer service.
Date: November 30, 2020
Website: Google
Very good customer service.
Irfan Sheikh
Very good customer service.
Date: November 30, 2020
Website: Google
I was happy with the...
Evan Gobeil
I was happy with the help I received when my car broke down on the side of the road. They were able to get me in right away and provided me with an explanation of what happened and what was done. I would recommend to anyone needing work done on their vehicle.
Date: November 30, 2020
Website: Google
Steve and his team are...
Anne Marie
Steve and his team are great.As a woman, I have been taken to the cleaners before by a garage.What a refreshing change 🙂 These guys are honest, respectful, knowledgeable and treat customers with respect. You can go there knowing you will not get ripped off. They do what is necessary.Recommend these guys 💯%.
Date: November 30, 2020
Website: Google
Very friendly and professional.
RodzillaRoar
Very friendly and professional.
Date: November 28, 2020
Website: Google
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