100S Quattro Wagon (Canada) V6-2.8L (AAH) (1992)
Housing Assembly HVAC: Service and Repair
Evaporator Housing, Removing and Installing
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Discharge A/C refrigerant.
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Remove glove compartment. See: Body and Frame/Interior Moulding / Trim/Glove Compartment/Service and Repair
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Remove four bolts from evaporator cover.
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Remove plenum tray.
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Disconnect refrigerant lines to evaporator.
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Plug all open line connections.
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Disconnect all connections between evaporator housing and vehicle.
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Remove evaporator housing.
NOTE: The evaporator housing cannot be disassembled and must be replaced as an assembly.
Install
Reverse order of removal noting the following:
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Replace seal -A- between vehicle and evaporator housing.
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Replace all O-rings properly.
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Insert water drain hose -B- through opening in plenum, route hose straight and kink-free, ensure hose connections are tight and sealed.
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Check water drain valve -C- for proper operation, clean any dirt, wax or undercoating from valve flap.
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Valve flap must close.
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After installation, ensure there are no air leaks around housing.