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
Best Service and very honest...
Melad Shamoun
Best Service and very honest people. You have a transmission problem go to Dan and it’s solved.
Date: October 9, 2024
Website: Google
I love this mechanic. They...
Taylore Paruch
I love this mechanic. They always make me feel so comfortable! As a young woman taking my car in somewhere not knowing very much in this realm it means alot that they are trustworthy.
Date: October 8, 2024
Website: Google
I Almost broke down on...
Greg Hull
I Almost broke down on highway 403 and ended up making it to mr transmission with the car. They diagnosed that there was no trans damage. It was somthing else causing the lights to come on, car to stall and lose power. They also recommended another garage close by and called for an appointment on my behalf for another auto garage to preform the work that needs to be done. Thank you mr transmission and thank you for not charging me for running your tests.
Date: October 8, 2024
Website: Google
My car was shaking when...
Karim Michael
My car was shaking when accelerating, progressively worsening over the past 2 years. 3 mechanics could not figure it out. Lexus dealer couldn't figure it out and ultimately misdiagnosed the issue. Ken figured it out immediately. Turns out my Lexus's "lifetime" transmission oil needed changing. Once Ken did it the shaking stopped immediately! Seems so simple retrospectively. I appreciated Ken's honesty. Only issue I had is that my emails and voice messages went unanswered, so only way to reach them is to call during business hours. Otherwise I wouldn't hesitate to come here again in the future or recommend them.
Date: October 7, 2024
Website: Google
Service was excellent had my...
Eric Whitlam
Service was excellent had my pickup fixed and back on the road in three days cost was expensive double of what I thought but then I never asked for a quote just wanted my truck fixed no complaints with the staff they were helpful
Date: October 7, 2024
Website: Google
Always fast & friendly service!
John Kakuriev
Always fast & friendly service!
Date: October 7, 2024
Website: Google
Fast, Knowledgable and friendly service!...
Kelsey Leveille
Fast, Knowledgable and friendly service! Jason & team was able to confirm that there was no issues with my transmission and radiator saving me hundreds on unnecessary repairs from misdiagnotics. Thank you! Always able to trust Mr T Canada, from coast to coast. Keep up the great work 👍
Date: October 6, 2024
Website: Google
Yes, I fact the worst...
Kerwin Wong
Yes, I fact the worst situation. Fortunately I sent the car to repair and the mechanic told me what they need to do, meanwhile give me a quotation when they starting to repair the car.
Date: October 6, 2024
Website: Google
Very honest and nice mechanics...
Andrew Israel
Very honest and nice mechanics and very good prices will def use them in near future
Date: October 6, 2024
Website: Google
They know what they doing....
Patriot
They know what they doing. Very honest with their work.
Date: October 5, 2024
Website: Google
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