When do transmission cooler lines need to be replaced?
The cooler lines are made of metal, rubber, or a combination of both. These materials can wear out or deteriorate under many circumstances. Replacement is the only solution when they start leaking fluid. Sometimes, the transmission cooler may fail and the line replacement comes as a part of the repair.
What to do if your transmission cooler is leaking?
If you simply notice that a line is leaking, that can be a simple fix depending on the location of the leak and line itself. Depending on the transmission cooling system routing, it is not too uncommon to have the transmission cooler lines leaking at the radiator if the lines are starting to rust.
What are the symptoms of a transmission cooler failure?
1. Transmission Line Leak One of the most obvious transmission cooler failure or blown transmission line symptoms is a leak. When a line leaks, there will be transmission fluid on the ground near where the leak is coming from.
How does transmission coolant affect the transmission system?
It keeps the transmission components lubricated, activates gear changes, and releases heat from the system’s internal parts. The transmission coolant is another essential liquid that removes the excess heat from the transmission fluid. Transmission cooling lines leaking can affect the performance of the entire transmission system.
How do I remove transmission lines from Radiator?
Remove the two transmission cooler lines from the bottom of the radiator. These two lines can be accessed either from underneath the hood or underneath the vehicle. Use the flare nut wrench to remove the lines in the same manner used to remove the lines from the transmission.
Which line is the return to transmission?
The white arrow on the driver side is the return line from the radiator to the transmission. You want the tap into the return (driver side) side. This will allow the ATF to be cooled even more after going through the radiator and then through the additional new cooler and back to the transmission.
What causes a transmission cooler to leak?
Heat causes oxidation. Oxidation causes a brown tarnish that coats the dipstick, transmission case and other components inside the transmission. This tarnish also causes transmission valves to stick, resulting in delayed and unusual shifting. If the fluid is pink and milky, the transmission cooler is leaking.
What is a transmission cooling line?
What is a transmission cooling line? Your transmission cooling lines, often just called the transmission lines, are the lines that connect your transmission to the radiator in your car. The hot fluid cools off in the radiator and then heads back to the transmission.