Volvo Workshop Manuals
940 L4-2.3L SOHC VIN 88 B230F (1992)
Maintenance > Fluids > Refrigerant > Component Information > Technical Service Bulletins > A/C - Converting R12 System to R134a > Page 2971
In older cars or where the A/C system is fitted as an accessory, there is no ETF/ KRU-valve. If this is the case, remove the pipe at the firewall.
Location of orifice
1991 models and earlier: orifice is located in the evaporator inlet at the firewall.
1992 models: orifice is located in the high pressure pipe at the pipe junction on the side member.
Clean connection and surrounding body area thoroughly
Undo nut on connection.
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