Section 12-03A: Air Conditioning System Manual A/C-Heater

Section 12-03A: Air Conditioning System—Manual A/C-Heater 1998 Taurus, Sable Workshop Manual REMOVAL AND INSTALLATION

Heater Core

Removal

NOTE: If a heater core leak is suspected, the heater core must be pressure leak tested before it is removed from the vehicle. Refer to Section 12-00 .

1. NOTE: If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle. Refer to Section 12-00 .

Remove instrument panel (04320); refer to Section 01-12 .

2. Drain coolant from radiator (8005) into a clean container.

3. Disconnect heater water hoses (18472) from heater core (18476) . Plug heater core tubes or blow any coolant from heater core with low pressure air.

4. Remove four retaining screws and A/C electronic blend door actuator from A/C evaporator housing. 5. Remove metal cover, disengage spring from heater core cover (18B300) and remove spring from lever. Part Item Number Description 1 — Metal Link (Part of 19B555) 2 18B300 Heater Core Cover 3 19B555 A/C Evaporator Housing 4 — Spring (Part of 19B555) 5 — Lever (Part of 19B555) 6 — Locking Ramp (Part of Secondary A/C Air Temperature Control Door Shaft) 7 — Secondary A/C Air Temperature Control Door Shaft (Part of 19B555) 6. NOTE: Do not attempt to bend any part of the lever; it is brittle and will break.

Gently depress locking ramp and remove lever from secondary A/C air temperature control door end.

7. Rotate primary A/C air temperature control door shaft down, then swing metal link and remove from pin.

8. Remove three heater core cover retaining screws and remove heater core cover and heater core cover seal (18N267) from A/C evaporator housing.

9. Remove heater core and seal from A/C evaporator housing by pushing on heater core tubes. Item Part Number Description 1 19B555 A/C Evaporator Housing 2 18476 Heater Core 3 18N267 Heater Core Cover Seal 4 18B300 Heater Core Cover 5 N805347-S58 Screw

Installation

1. Transfer foam core seal to new heater core.

2. Install heater core and foam core seal into A/C evaporator housing.

3. Position heater core cover and seal on A/C evaporator housing and install three retaining screws.

4. Install metal link over pin on primary A/C air temperature control door lever.

5. Install secondary A/C air temperature control door lever on metal link. 6. Install secondary A/C air temperature control door lever to secondary A/C air temperature control door end.

7. Engage spring to heater core cover and secondary A/C air temperature control door lever.

8. Install A/C electronic blend door actuator to A/C evaporator housing with four retaining screws.

9. Connect heater water hoses to heater core .

10. Fill radiator to correct level with previously removed coolant or specified mixture of coolant and water.

11. Install instrument panel as described in Section 01-12 .

12. Check system for proper operation.