Auto >> AutoSPT >  >> Electric car

How do you bypass the air conditioning on 1989 Chevy G20 series van?

There's no single "bypass" for a 1989 Chevy G20's AC system. The system is integrated, and disabling parts will likely lead to problems. What you're probably looking for is how to *prevent* the AC from operating, while still having airflow from the blower motor.

Here are a few ways to achieve that, with varying degrees of impact and complexity:

* Turn the AC off: This is the simplest. Locate your AC control panel (usually under the dash). There should be a button or switch specifically for the AC compressor. Turn it off. You'll still have ventilation, just without the cold air.

* Disconnect the AC clutch: This is more involved and requires some mechanical skill. The AC compressor clutch is an electromagnetic device that engages the compressor. Locating it requires looking at your vehicle's AC system. Disconnect the electrical connector to the clutch. This prevents the compressor from engaging, but you still have airflow. WARNING: This method *requires* you to know the location of the clutch and to understand basic electrical safety procedures. Improperly disconnecting the electrical component could cause damage or injury.

* Bypass the compressor (Advanced and NOT Recommended): This is NOT recommended for someone without significant automotive AC experience. Bypassing the compressor itself involves potentially modifying the system's refrigerant flow. This is dangerous because of the high pressure involved and can lead to system damage and refrigerant leaks. This should only be attempted by a qualified mechanic.

Important Considerations:

* Refrigerant: Do not attempt any work on the AC system unless you are properly trained to handle refrigerant. Refrigerant is harmful to the environment and can be dangerous to your health.

* Safety: Working with automotive AC systems requires safety precautions. Always use appropriate safety glasses and gloves.

In summary: The simplest and safest way to "bypass" your AC is to simply turn it off using the control panel. More involved methods should only be attempted by individuals with the necessary mechanical skills and knowledge of automotive AC systems. If you are uncomfortable with any of these steps, take your van to a qualified mechanic.