2002 2003 2004 2005 2006 Honda CRV CR-V L4 2.4L DOHC. 2001 2002 2003 2004 2005 Honda Civic L4. The expansion valve is the component in the refrigerant system that regulates the rate of flow of refrigerant into the evaporator core through the use of variable valve opening as governed by a remote bulb sensing evaporator temperature.
