1. Safety First:
* Wear safety glasses: Transmission fluid is messy and can irritate your eyes.
* Gloves: Protect your hands from the fluid.
* Work on a level surface: This prevents fluid spills.
* Have absorbent material ready: Rags, shop towels, or kitty litter are good for cleanup.
* Container: Have a suitable container ready to catch the draining fluid. It doesn't need to be huge, but enough to catch what spills out.
2. Locate the Quick Connects:
The transmission cooler lines are usually found near the radiator. Trace the transmission lines from the transmission itself to find the connections.
3. Prepare for Disconnection:
* Cool the system: If the engine is hot, let it cool completely before working. Hot transmission fluid can cause burns.
* Position the container: Place the container below the connection to catch the fluid.
4. Disconnect the Lines:
This is where the specifics depend on the type of quick connect. There are several types, but generally:
* Push and Turn: Some quick connects require you to push a tab or collar (usually a ring or a small button) in while pulling the line away. There might be a small notch or indentation indicating where to push. Carefully examine the fitting for clues.
* Push and Pull: Others simply require a firm pull after depressing a retaining clip. The clip's release might be accompanied by a clicking sound or audible snap.
Important Notes on Disconnection:
* Don't use excessive force: If a connection is particularly stubborn, try gently rocking or wiggling the line while pushing the release mechanism. Forcing it could damage the fitting.
* Check for a release tab or lever: Many quick-connects have a small tab or lever that must be depressed before pulling the line. Sometimes they are difficult to locate. Look carefully around the fitting.
* If unsure, consult a repair manual: A shop manual specific to your 2005 Chevrolet Cobalt will show diagrams and instructions.
5. After Disconnection:
* Clean up the spilled fluid immediately.
* Inspect the fittings: Check for any damage or debris before reconnecting.
6. Reconnection:
Reconnection is generally the reverse of disconnection. Ensure the lines are firmly seated. You should feel a noticeable "click" or resistance indicating a secure connection.
Important Disclaimer: This information is for general guidance only. Improper handling of transmission fluid can lead to damage. If you are not comfortable performing this procedure, consult a qualified mechanic. They have the tools and expertise to do it safely and correctly.