740 L4-2320cc 2.3L DOHC B234F (Can) (1992)
Note:
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
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1991 models and earlier: orifice is located in the evaporator inlet at the firewall.
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1992 models: orifice is located in the high pressure pipe at the pipe junction on the side member.
Remove orifice
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Clean connection and surrounding body area thoroughly
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Undo nut on connection.