Town Car V8-302 5.0L (1987)
MAJOR SERVICE OPERATIONS
Grid Wire Repair
NOTE:
A single break or any breaks that total more than 25 mm (1 inch) in one grid cannot be repaired. The rear window must be replaced. For
breaks less than 25 mm (1 inch) long, use the following procedure:
Surface Preparations
1.
The vehicle should be brought inside and permitted to come to room temperature of 16~C (60~F) or above.
2.
Clean entire grid line repair area with Ford Glass Cleaner E4AZ-19C507-A (ESR-M1495- A) or equivalent or other suitable cleaning solvent to
remove all dirt, wax, grease, oil or other foreign matter. It is important that repair area be clean and dry.
Mixing The bottle of Grid Repair Compound D8AZ-19562-A (ESB-M4J58-A) or equivalent and touch-up paint must be at room temperature. Shake
bottle for at least one minute for thorough mixing. Shake frequently during use. Application
1 Mark location of break on outside of window.
2.
Using cellulose tape, mask off area directly above and below grid break. The break area should be at the center of mask, and tape gap must be no
wider than existing grid line.
Lincoln Town Car - Ford Crown Victoria - Mercury (Grand Marquis)
1987 Lincoln Town Car - Ford (Crown Victoria) - Mercury (Grand Marquis)
36-86-1
Window, Rear-Defroster
36-86-1
SECTION 36-86 Window, Rear-Defroster
SUBJECT
PAGE
DESCRIPTION AND OPERATION
36-86-1
MAJOR SERVICE OPERATIONS
Grid Wire Repair
36-86-2
Lead Wire Terminal Repair
36-86-4
REMOVAL AND INSTALLATION
Control Assembly
36-86-2
SUBJECT
PAGE
REMOVAL AND INSTALLATION (Cont'd.)
Window
36-86-2
TESTING
Control Assembly Tests
36-86-1
Grid Wire Test
36-86-2
VEHICLE APPLICATION
36-86-1
VEHICLE APPLICATION
Lincoln Town Car, Ford Crown Victoria/Mercury Grand Marquis.
DESCRIPTION AND OPERATION
The heated rear window defroster system consists of a control assembly mounted on the climate control head, a series of grid lines baked on the inside
surface of the rear window and system wiring. The grid lines consist of two layers. The first layer is brown in color as viewed from the exterior, and the
second layer is silver in color as viewed from the interior.
The control assembly has a lever spring-loaded to center position, to turn the system on or off, and a timercontrolled relay that turns off automatically
after approximately ten minutes of operation. If more than ten minutes are required, the control can be reactivated for another ten minutes by pushing the
lever momentarily to the ON position. This operation can be repeated as required.
When the lever is pushed to the ON position the normally open contacts in the control are mechanically closed, thus providing power from battery to the
rear window grids, the indicator lamp, the heated outside mirror and also triggering the timing circuit. This contact will remain closed until the timer
turns it off, or the lever is
pushed momentarily to the OFF position, or the ignition switch is turned off. Power for the rear window grids, the outside rear view mirror, and the
indicator lamp is supplied directly from the battery side of the starter motor relay through a fuse link which protects the circuit. Power for the control
timer comes from the accessory terminal of the ignition switch. This power is available whenever the ignition switch is in RUN. This circuit is protected
by a fuse, located in the fuse panel.
