How Car Transmission Lines Work

By Mister Transmission

Automatic transmissions generate a lot of heat. Transmission cooling lines keep things cool but they’re susceptible to being damaged

Car transmission lines connect your vehicle’s transmission to the vehicle’s radiator. Also known as transmission cooling lines, they are typically made of metal or composite aluminium and rubber hoses because they can handle the flow of hot transmission fluid.

Your car’s transmission lines are essential to preventing the transmission from overheating by carrying hot fluid away from the transmission until it is cooled and subsequently pumped back into the transmission.

If your car’s transmission lines are damaged, they will leak, and that can lead to serious trouble if you don’t notice your car bleeding transmission fluid. But here’s the problem: most automotive transmission lines are particularly susceptible to damage or rupture owing to the fact they are exposed on the underside of your car to the weather, and to debris on the road.

How to Spot Car Transmission Line Problems
If your car’s transmission cooling lines are leaking, it’s not difficult to detect. The most obvious sign is if there’s red fluid pooling beneath your engine where you park your vehicle.

Other noteworthy warning signs that your transmission cooling lines may be leaking include:

  • You’re having trouble shifting into gear; the gears are slipping, or are shifting slowly
  • Your transmission is overheating, or you notice an unpleasant burning smell
  • You hear grinding or whining noises when gears change or the vehicle rattles or jerks when you drive
  • The “service engine soon” indicator on your dashboard lights up

If you suspect your vehicle’s transmission cooling lines are leaking, or if you have questions about preventative transmission maintenance, contact us. Take advantage of our free 21-point multi-check inspection and avoid the cost and aggravation associated with a failing transmission.

Want to know more?
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Customer Reviews
Wes was very knowledgeable and...
Mike Webster
Wes was very knowledgeable and helpful and kept me informed throughout the repair. It was a pleasure to deal with such a professional automotive repair shop. I wholeheartedly recommend them for any transmission issues.
Date: September 22, 2022
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Our car broke down upon...
Virginia Tang
Our car broke down upon when we return home. End up car need to get tow to this store. Staff are very friendly and owner PJ is very helpful. He explained very clear about the problem and shown his expertise.They really relieved our stress.
Date: September 22, 2022
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Chris and his staff provided...
Glenn Gibbons
Chris and his staff provided excellent service. Quickly diagnosed problem ,clearly explained the repair. estimate was accurate and vehicle was repaired in time framed promised. highly recommend them .
Date: September 22, 2022
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Very happy with Carlo and...
Malcolm Ogley
Very happy with Carlo and the work he does. He has worked on both my vehicles and no issues. Will keep going back
Date: September 21, 2022
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Great service and friendly staff....
Neal Woelinga
Great service and friendly staff. Definitely will come for servicing my truck again
Date: September 21, 2022
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Had a great experience from...
TJ Deering
Had a great experience from the first phone call, very friendly staff. Highly recommended!
Date: September 21, 2022
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I have a Toyota rav4...
Kashmir Maan
I have a Toyota rav4 2013 Symptoms were , low speed shudder between 35-45 Km Dealer told me that it has problem with torque converter .So it has to be replaced . the cost would be $2000 . Suddenly I called Mr Giorgio .He at once ask me to come to his shop . He took test drive . Then he told me he will fix it without changing torque converter . He did it . He saved me $1650 and did an excellent job . I am fully satisfied with his services . He is a very professional and honest person . I would highly recommend that you visit Giorgio and his team for assistance with any issues you may have with your auto
Date: September 20, 2022
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Sean is amazing. Very sincere...
Patti Mckay
Sean is amazing. Very sincere and honest. I highly reccomend this location. I trust them 100%. Thank you.
Date: September 20, 2022
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Highly recommend this location! I...
Scott Bullock
Highly recommend this location! I don't normally post these but Ken was extremely helpful with my repair. He answered every one of my questions. If your car has a problem, go to this location, Ken will fix your problem
Date: September 20, 2022
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Aki and the boys know...
Gee Bee
Aki and the boys know EXACTLY what they're doing. You pay for that knowledge and experience. But it is worth every penny. I just have to remember to drop by more than once every 3 years! Lol
Date: September 19, 2022
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