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
They did a good job,...
Lisa Overland
They did a good job, pretty fast so far so good. Shifts good.They did break an exhaust sensor, did not mention it to me after l showed the warning light to em. Cost me anouther $200 at Midas while getti g an oil change.
Date: June 29, 2022
Website: Google
Very nice staff and service...
Rehman Sherazi
Very nice staff and service with enough satisfaction to your questions and concerns.
Date: June 28, 2022
Website: Google
Great people and service!!Service: Transmission
Robert Vieth
Great people and service!!Service: Transmission
Date: June 28, 2022
Website: Google
Zaff was really good.Services: Body &...
Ze Ad
Zaff was really good.Services: Body & Trim, Oil change
Date: June 27, 2022
Website: Google
I have used this location...
D Anderson
I have used this location (Centennial Pkwy.) for transmission repair and preventative maintenance work on several occasions, with more than one vehicle over the years. Owner Steve is both courteous and knowledgeable. The work done here is honest and reliable. They are not in the business of overcharging for work that isn't required! I would highly recommend this location to anyone in need of transmission repair or service.Service: Transmission
Date: June 27, 2022
Website: Google
Great service and honest !Fixed...
NatyBe Creator
Great service and honest !Fixed my problem with very little headaches!
Date: June 26, 2022
Website: Google
Doctor Matt and his crew...
Michael Crofton
Doctor Matt and his crew fixed up a bad situation on a 700R4 in an old car. It’s tough to get ANY shop these days to even consider working on ol school Detroit muscle. They’ve touched both my cars and I wouldn’t have anyone else deal with my drivetrain issues. Thnx again Matt
Date: June 25, 2022
Website: Google
Fantastic place! Staff so friendly...
Dave Nelson
Fantastic place! Staff so friendly I would work there!!
Date: June 24, 2022
Website: Google
Excellent people small family business
Casperft Dubbert
Excellent people small family business
Date: June 23, 2022
Website: Google
A true “five stars” service...
Adnan Isakovic
A true “five stars” service by a professional Team of experts!Had intermittent transmission issues with my old SUV and previously tried to get help from the dealership, with no resolution - until I called Eric.Got immediate attention and effective service. Eric is passionate about his business and someone you can trust without reservations. You will get the best transmission job done for a fair price.Highly, highly recommended!
Date: June 23, 2022
Website: Google
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