Grand Marquis V8-281 4.6L SOHC (1992)
8. Loosen the retaining clamp and disconnect the emission hose that passes over the top of the evaporator case assembly. Position the emission hose
and all vacuum hoses and movable wires away from the evaporator case assembly.
9. Disconnect blower motor lead assembly from the main wiring harness and remove the hard-shell connector from the blower motor resistor
assembly.
10. Disconnect the two large wire harnesses (which cross the evaporator assembly) at the various hard shell connecting points and position them away
from the evaporator assembly.
11. From the passenger side of dash panel, fold carpeting back on the Right Hand side of the floor. Remove the bottom Left Hand screw of the two
screws that support the inlet recirculation air duct assembly.
12. From the engine side of the dash panel, remove the three nuts (one upper and two lower) from the three evaporator assembly mounting studs. Also
remove the two screws (one drill point and one sheet metal) from the blower motor and wheel assembly portion of the case assembly.
13. PULL the bottom of the evaporator case assembly away from the dash panel to disengage the two bottom studs. Move the TOP of the case
assembly AWAY from the dash panel disengaging it from the TOP stud and maneuver the case UP and OVER the wheel well splash panel.
Installation
1. Position the evaporator assembly next to the dash panel by maneuvering it DOWN PAST the wheel well splash panel.
Plenum/Evaporator Case And Air Inlet Duct Assembly
2. Engage the two bottom dash panel studs into the evaporator assembly stud holes. Move the top of the case assembly TOWARD the dash panel
while engaging the top dash panel stud into the evaporator assembly stud hole.
3. Replace, but DO NOT TIGHTEN, the three stud nuts.
4. Replace and tighten the two screws (one drill point and one sheet metal). Tighten the three stud nuts previously installed.
NOTE: Be careful to return the drill point screw to the correct hole which is located on top of the case and to the right of the blower motor and
wheel assembly.
5. Position the two large wire harnesses across the evaporator case assembly and connect the various connectors.
6. Connect blower motor lead assembly to the main wiring harness.
7. Place the emission hose clamp on the hose, tighten the clamp and position it over the evaporator case assembly along with the vacuum hoses and
wires previously moved.
8. Unfold the hood seal bracket assembly and insert the copper hood ground clip underneath the hood seal. Install the four screws that secure the
Right Hand side of the hood seal bracket assembly. Secure the copper ground clip under one of these screws.