What could cause clear water to leak from under dash of 1982 Oldsmobile 98 when air conditioner is running?

The most common cause of clear water leaking from under the dash of a 1982 Oldsmobile 98 when the air conditioner is running is a clogged or damaged evaporator drain hose. This hose is responsible for draining the water that forms on the evaporator coil when the air conditioner is in use. If the hose becomes blocked or damaged, the water can back up and overflow, causing it to leak from under the dash.

Here are some other possible causes of clear water leaking from under the dash of a 1982 Oldsmobile 98 when the air conditioner is running:

* A cracked or damaged evaporator core. The evaporator core is a component of the air conditioner that is responsible for cooling the air. If the core becomes cracked or damaged, it can leak refrigerant, which can cause water to form on the evaporator coil and drip from under the dash.

* A loose or damaged hose connection. If any of the hoses that are connected to the evaporator core or the drain hose become loose or damaged, it can cause water to leak from the system.

* A malfunctioning expansion valve. The expansion valve is a component of the air conditioner that is responsible for controlling the flow of refrigerant. If the expansion valve malfunctions, it can cause too much refrigerant to flow into the evaporator core, which can lead to water leaking from under the dash.

If you are experiencing clear water leaking from under the dash of your 1982 Oldsmobile 98 when the air conditioner is running, it is important to have the problem diagnosed and repaired by a qualified mechanic.