Evaporator Core: Service and Repair

Fig. 15 Evaporator core removal:

1. Disconnect battery ground cable. Discharge refrigerant from system.
2. Disconnect pressure switch electrical connector and remove from suction accumulator, Fig. 15.
3. Disconnect refrigerant lines from accumulator and evaporator. Plug all open lines to prevent entry of dirt and moisture into system.
4. Remove nut retaining MAP sensor bracket to upper LH corner of evaporator case and remove spring clip holding sensor to housing, and position sensor aside.
5. Remove one nut retaining upper LH corner of evaporator case to dash panel, then remove six screws attaching LH evaporator cover to evaporator case.
6. Remove LH evaporator cover from case evaporator case.
7. Remove evaporator core and suction accumulator from evaporator case.
8. Reverse procedure to install. Use new O-rings lubricated with refrigerant oil.
9. Evacuate, charge and leak test system. Check for proper operation.