Air Pressure Test
| Air Pressure Test | 
| 1. | Mask off both the pressure relief valves. | |
| 2. | Close all the windows. | |
| 3. | Turn the vehicles ventilation fan to the on position, with the selector on high speed and in the defrost mode. | |
| 4. | Unlock and close the doors. | |
| 5. | Listen for escaping air along the door and the window seals with a stethoscope or a length of heater hose. | |

 
		