Soap Suds Or Bubble Test
- Close all the windows.
- Turn the vehicles ventilation fan to the on position, with the selector on high speed and in the defrost mode (or panel mode with fresh air vent on - no recirc).
- Unlock and close the doors.
- Apply the soap solution to the potential leak areas.
- Look for bubbles revealing escaping air.
- If unsuccessful in identifying the leak path, consider masking off the pressure relief valves (to increase cabin pressure) and perform the evaluation again.