Vehicle Overheating

Contaminated or burnt fluid that contains particles can indicate overheating problems in the transmission.

An overheated vehicle is a common cause of mechanical breakdown and can be the cause of significant engine and transmission damage, therefore establishing the problem associated with the overheating is important for maintaining a well-running vehicle.

What’s that smell?

If a driver while running a vehicle smells something burning while driving, it could be a sign of a transmission that is overheating or leaking transmission fluid onto the exhaust. The transmission fluid is what keeps the moving parts in the transmission lubricated, as well as providing a cooling system for the transmission to prevent it from burning out.

Transmission fluid should be a translucent reddish brown color. Contaminated or burnt fluid that has particles in it can indicate problems in the transmission from overheating. If the fluid has a varnished look it is an indication of repeated overheating of the transmission.

Use the dipstick test

Drivers can check their fluid color by taking out the dipstick, cleaning it with a cloth and then re-inserting it into the fluid chamber. If the transmission fluid has any particles in it, than the driver should have a transmission expert check the vehicle and change the fluid. Driving with particles in transmission fluid can cause the transmission filter to become clogged, so draining and replacing the transmission fluid can sometimes solve overheating problems. However, other times the fluid color is an indication of bigger transmission problems. Make sure your transmission expert knows of your problems to ensure your vehicle continues to run optimally.

Clutch problems can cause transmission problems, which lead to overheating. The clutch, which is located within the torque converter, can become jammed. If the clutch is jammed, the solenoid can also become locked which means that the amount of transmission fluid needed could be incorrectly calculated and problems similar to low fluid levels can occur. Violent shaking of the car as well as producing high heat and a lower power output can result if this jam occurs.

What to know when towing

When a vehicle is towing anything or has been running at high speeds in warmer temperatures the transmission fluid should be checked regularly as anything that adds extra stress to the engine can cause transmission fluid to overheat. Rocking a car after it has become stuck in sand or snow can also cause high levels of heat in the transmission and engine in a short period of time. Digging out a vehicle or towing is the best option for your transmission. Warming up a vehicle so that the fluid is at optimal operating temperature is also recommended.

If a vehicle is towed, ensure that it is correctly done! Rear wheel vehicles must be towed with the rear wheels off of the ground, and front wheel vehicles with the front wheels off of the ground. Four-wheel drive vehicles should have no wheels on the ground. Improper towing can cause serious damage to the transmission, so make sure to check the owner’s manual before hooking up the vehicle.

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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
Was very helpful getting my...
Cameron Frith
Was very helpful getting my transmission fluid changed on a 280,000km car. Made sure the car was running right by doing a test drive before and after the appointment, and let me know of something else that needed fixing without pushing me to schedule another appointment so I wasn't running broken was tremendously nice!
Date: October 12, 2026
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To Chris & Team at...
Darrin Brady
To Chris & Team at Mr Transmission #127, It is wirh grear pleasure to post a 5 Star (well deserved) review for your EXCEPTIONAAL SEVICE and timely reults while helping restore my 2008 JEEP LIBERTY Sport Your expertise and communication was Top shelf and sinceely appreciated to quickly diagnose , locate parts and have me me back on the road in 3 days was insane! Thanks for turning a headache in to an enjoyable interaction. Will see you in 500km for a follow up as recommended. All th Best, Darrin Brady
Date: October 12, 2026
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Attentive service, prompt calls for...
Ambra A
Attentive service, prompt calls for updates and made a courtesy car available for me. Very much appreciated!
Date: October 11, 2026
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Very good communication and updates....
Kelly Nichols
Very good communication and updates. Great customer service.
Date: October 10, 2026
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Kudos to Kyle and Jenifer...
Neil Hopper
Kudos to Kyle and Jenifer owners of Mr. Transmission on Bath Road in Kingston. Their quote was accurate and the repair time and work was excellent. Truck went in Monday and out Thursday, thanks guys, wishing you all the best !!!!
Date: October 10, 2026
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Professional staff, work completed in...
Brett Rainboth
Professional staff, work completed in a timely manner!
Date: October 10, 2026
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Highly recommend Mr. Transmission as...
D Rombis
Highly recommend Mr. Transmission as they are efficient, and get the problem solved every single time!
Date: October 10, 2026
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Helpful and friendly staff. Communicated...
Jeffrey Doerr
Helpful and friendly staff. Communicated well keeping me up to date.
Date: October 10, 2026
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The crew was super friendly....
Cory Spataro
The crew was super friendly. Even though I berated them with questions they were happy to answer them in detail and the customer service was excellent. It was a very expensive repair but I had a general idea of what the cost would be going in. It took a fairly longer time than they originally said but they were extremely thorough and I felt confident about the repair. However, a couple weeks later, a component sprang a leak and they honored their warranty and repaired everything and then some, free of charge.
Date: October 9, 2026
Website: Google
The best staff and fast...
Joseph Dupont
The best staff and fast and reliable service they go the extra mile to make your vehicle safe and running smoothly
Date: October 9, 2026
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