A/C - Performance Concerns

SOURCE: Subaru Tech Tips

TITLE: Automatic A/C System Aspirator Tubes

APPLIES TO: All models with Auto A/C

SERVICE TIP:

Subaru has received some calls on vehicles equipped with the Automatic Climate Control system with the concern of the heater blowing cold air.

If you get such a concern, make certain the system's aspirator tube is properly connected and if so, also make sure it's not kinked or restricted by a harness or something else.

The vehicle's aspirator tube tells the system what the cabin temperature is. Without this input, it cannot adjust the system properly to maintain the correct temperature.

Also, be aware that this can cause the a/c system to not cool properly as well in warmer temperatures.

This tube should be inspected anytime you have a poor heating/cooling concern on these vehicles.