Wrangler 4WD L4-150 2.5L VIN P MFI (1998)
2. Install and tighten the one screw that secures the heater-A/C housing to the plenum bracket on the passenger compartment side of the dash panel.
Tighten the screw to 3.4 N.m (30 in. lbs.).
3. Install the floor duct to the bottom of the heater-A/C housing. See Floor Duct for the procedures. See: Air Duct/Service and Repair
4. Install the cowl drain tube onto the heater-A/C housing mounting stud on the dash panel directly behind the engine cylinder head.
5. Install and tighten the five nuts onto the heater-A/C housing mounting studs on the engine compartment side of the dash panel. Tighten the nuts to
6.2 N.m (55 in. lbs.).
6. If the battery was repositioned during the removal procedure, position the battery and tighten the hold-downs. Refer to Starting and
Charging/Battery for the procedures. See: Starting and Charging/Battery/Service and Repair
7. Connect the heater-A/C system vacuum supply line connector to the tee fitting near the heater core tubes.
8. Unplug or remove the tape from the heater core tubes. Connect the heater hoses to the heater core tubes and fill the engine cooling system.
9. If the vehicle is not equipped with air conditioning, go to Step 13. If the vehicle is equipped with air conditioning, unplug or remove the tape from
the accumulator inlet tube and the evaporator outlet tube fittings. Connect the accumulator inlet tube coupler to the evaporator outlet tube. See:
Coupler HVAC/Service and Repair
10. Unplug or remove the tape from the liquid line and the evaporator inlet tube fittings. Connect the liquid line coupler to the evaporator inlet tube.
See: Coupler HVAC/Service and Repair
11. Evacuate the refrigerant system.
12. Charge the refrigerant system.
13. Install the instrument panel in the vehicle. See: Instrument Panel, Gauges and Warning Indicators/Instrument Cluster / Carrier/Service and Repair
14. Connect the battery negative cable.
15. Start the engine and check for proper operation of the heating and air conditioning systems.
