Operation CHARM: Car repair manuals for everyone.

Insufficient Cooling




Insufficient Cooling

1. Low pressure: normal
High pressure: high
System is too full. Drain and refill system.

2. Low pressure: too low
High pressure: too low
Insufficient refrigerant in system. Look for leakage. Refill system.

3. Low pressure: too high
High pressure: normal
Expansion valve is defective.