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How To Replace Transmission Cooler Lines

When it comes to car repairs, many of us tend to think of things like oil changes and brake service. But what about one of the most important parts of your car—the transmission? Transmission coolers are essential for ensuring efficient gearbox operation, and they can often go without proper maintenance. If you’re experiencing problems with your transmission, or if you just want to upgrade your cooling system, now is the time to do it. In this blog post, we will teach you how to replace a transmission cooler line on a GM C6 Corvette. By following our guide, you will be able to save yourself a lot of hassle and money down the road.

What is a Transmission Cooler Line?

Transmission coolers lines are the tubes that connect your transmission to the radiator. When they wear out, they can cause your transmission to overheat and fail. Usually, when your transmission overheats, you’ll hear a noise and feel a shuddering sensation while driving. In some cases, it could even cause a car crash. If you’re experiencing any of these symptoms, it’s time to replace your transmission cooler lines.

Types of Transmission Cooler Lines

There are two types of transmission cooler lines: the intake and the exhaust. Intake lines cool the engine by transferring heat from the air to the coolant. Exhaust lines expel hot air and fumes from the engine.

To replace a transmission cooler line, remove the bolts that secure it to the transmission- mount bracket. Pop off the cooling line assembly from the mounting bracket. Disconnect both ends of the line and slide it out of its holder. Clean all surfaces with a degreaser before replacing the line. Install new line assembly in reverse order, making sure to tighten bolts to specification.

How to Replace a Transmission Cooler Line

If your car has an automatic transmission, you will need to replace the transmission cooler line. The transmission cooler line is a plastic tube that runs from the transmission to the radiator. It helps to keep the transmission cool and prevents it from overheating. When the line breaks, it can cause a lot of problems including overheating and failure of the transmission. Here are steps on how to replace a Transmission Cooler Line:

1. Park your car in a safe location and turn off the engine.
2. Remove the cover over the transaxle by removing either of two 10mm bolts circled in red below.
3. Carefully pull out the transaxle assembly from behind the cover.
4. Locate and remove the Transmission Cooler Line (TCL) by unscrewing it from its mounting bracket and pulling it out of its housing (See photo). Make sure to clean all debris off of both TCL and mounting bracket before reassembling them into their original location (See next step).
5. Clean both ends of TCL thoroughly with a degreaser before screwing it back onto its mounting bracket (See photo).
6. Reinstall transaxle assembly into vehicle by reinserting bolts circle in red below, and securing cover with two 10mm bolts circled in green below).

Tips for Replacing a Transmission Cooler Line

If your transmission is overheating, it may be because of a failing transmission cooler line. Replacing the cooler line is a relatively easy task that can help your car run more efficiently. Here are some tips for replacing a transmission cooler line:

1) Locate the transmission cooler lines on your car. They will typically be located behind the engine near the firewall.
2) Remove the radiator support panel and bolts that hold it to the chassis. Once this panel is removed, you should be able to see both coolers.
3)remove the old cooler line by unscrewing it from the radiator. Make sure to save all of the associated mounting hardware!
4) Install a new cooler line by following the same installation procedure as before. Make sure to torque the mounting hardware to manufacturer specifications.