Celica Liftback L4-122 1998cc 2.0L DOHC Turbo (3S-GTE) (1992)
Heater Core: Service and Repair
1. Disconnect negative cable from battery.
2. Recover refrigerant from refrigeration system
3. Disconnect suction tube from cooling unit outlet fitting.
4. Disconnect liquid tube from cooling unit in let fitting.
NOTE: Cap the open fittings immediately to keep moisture out of the system.
5. Remove grommets from inlet and outlet fittings.
6. Remove glove box and reinforcement.
7. Disconnect connectors.
8. Remove three nuts and four bolts remove cooling unit.
9. Drain engine coolant from radiator.
10. Disconnect water hoses from heater unit.
11. Remove pipe grommets.
12. Disconnect heater unit connector and remove wire harness.
13. Remove four retaining nuts and the heater unit.