Stabilizing the System

Stabilizing the System

Accurate test gauge data will only be attained if the system temperatures and pressures are stabilized.
- Ensure that equipment and hoses cannot come into contact with engine moving parts or sources of heat.
- It is recommended that a free standing air mover is placed in front of the vehicle to provide air flow through the condenser/cooling system.
- Start the engine, allow it to attain normal working temperature and set at fast idle (typically 1200 to 1500 rpm).
- Select full air conditioning performance.
- With all temperatures and pressures stable, or displaying symptoms of faults; begin relevant test procedures.