Oasis LS L4-2253cc 2.3L SOHC VTEC MFI (1999)
7. Disconnect the receiver line and the suction line from the evaporator.
Remove the rear A/C unit wire harness, then remove the four mounting bolts and the rear A/C unit.
NOTE: Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
8. Install in the reverse order of removal. Make note of the following items.
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If you're installing a new evaporator, add refrigerant oil (ND-OIL 8).
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Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them.
NOTE: Be sure to use the right O-rings for HFC-134a (R-134a) to avoid leakage.
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Make sure that there is no air leakage.
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Charge the system and test its performance.