1991 FORD FESTIVA air conditioning

Fig. 23: Condensor Fan Trouble Chart CF3

Courtesy of FORD MOTOR CO.

Fig. 24: Condensor Fan Trouble Chart CF4

Courtesy of FORD MOTOR CO.

Fig. 25: Condensor Fan Trouble Chart CF5

Courtesy of FORD MOTOR CO.
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Fig. 26: Condensor Fan Trouble Chart CF6

Courtesy of FORD MOTOR CO.

Fig. 27: Condensor Fan Trouble Chart CF7

Courtesy of FORD MOTOR CO.

Fig. 28: Condensor Fan Trouble Chart CF8

Courtesy of FORD MOTOR CO.
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Fig. 29: Condensor Fan Trouble Chart CF9

Courtesy of FORD MOTOR CO.
REMOVAL & INSTALLATION
COMPRESSOR
Removal & Installation
1. Discharge A/C system using approved refrigerant recovery/recycling equipment. Disconnect negative battery cable. Remove compressor
drive belt. Disconnect electrical connector. Disconnect refrigerant lines, and plug openings.
2. Remove compressor mounting bolts and compressor. See Fig. 1
. To install, reverse removal procedure. If installing a new compressor,
drain 1.2 ounces of refrigerant oil from compressor before installation. Evacuate and recharge system.
CONDENSER
Removal & Installation
1. Discharge A/C system using approved refrigerant recovery/recycling equipment. Remove radiator grille. Remove right-side sight glass
cover. Disconnect refrigerant line from receiver-drier. Remove refrigerant line clamp from condenser bracket. Remove hood latch and
center brace bolts.
2. Remove condenser fan (if equipped). Remove condenser mounting bolts. Lift out condenser and mounting grommets. See Fig. 1
. To
install, reverse removal procedure. Ensure mounting grommets are properly positioned. Install new "O" rings on all refrigerant line.
Evacuate and recharge system.
RECEIVER-DRIER
Removal & Installation
Discharge A/C system using approved refrigerant recovery/recycling equipment. Remove condenser. See CONDENSER under REMOVAL &
INSTALLATION. Disconnect refrigerant lines from receiver-drier, and plug openings immediately. Remove receiver-drier mounting bolts and
receiver-drier. See Fig. 1
. To install, reverse removal procedure. Use new "O" rings. Evacuate and recharge system.
EVAPORATOR HOUSING
Removal & Installation
1. Disconnect negative battery cable. Discharge A/C system using approved refrigerant recovery/recycling equipment. Disconnect
evaporator outlet tubes (refrigerant lines), and plug openings. See Fig. 1
. Remove glove box. Disconnect 2 electrical connectors from
thermostatic switch.
2. Disconnect temperature control cable. See Fig. 4
. Remove wiring harness clamps from evaporator housing. Loosen clamp screws
securing connector duct to evaporator housing. Remove evaporator drain hose. Remove air inlet duct. See Fig. 2
.
3. Remove evaporator housing-to-dash panel bolts. Remove evaporator housing. To install, reverse removal procedure. Use new "O" rings.
Evacuate and recharge system.
EVAPORATOR
Removal & Installation
1. Remove evaporator housing. See EVAPORATOR HOUSING under REMOVAL & INSTALLATION. See Fig. 1 . Remove upper and
lower evaporator case half clips. Remove upper housing. Carefully pull sensing tube from evaporator core fins while removing
thermostat. Remove evaporator from lower housing. Remove stand-off insert from between inlet and outlet tubes.
2. Remove insulator from around capillary tube and thermostatic expansion valve. Remove capillary tube-to-suction tube clamp.
Disconnect evaporator tube fitting and thermostatic expansion valve. To install, reverse removal procedure. Use new "O" rings on all
refrigerant line connections. Evacuate and recharge system.
THERMOSTATIC SW ITCH
Removal & Installation
Remove evaporator housing. See EVAPORATOR HOUSING under REMOVAL & INSTALLATION. See Fig. 1. Remove 10 clips retaining
evaporator housing halves. Remove upper housing section. Remove thermostatic switch mounting screws. Carefully pull thermostat sensing
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tube from evaporator core fins while removing thermostatic switch. To install, reverse removal procedure. Evacuate and recharge system.
THERMOSTATIC EXPANSION VALVE
Removal & Installation
1. Discharge A/C system using approved refrigerant recovery/recycling equipment. Remove evaporator housing. See EVAPORATOR
HOUSING under REMOVAL & INSTALLATION. Remove air inlet duct. See Fig. 1 .
2. Remove insulation from sensing bulb. Disconnect thermostatic expansion valve at evaporator tube fitting and inlet tube fitting (from
receiver-drier). See Fig. 3
. Remove thermostatic expansion valve. To install, reverse removal procedure. Use new "O" rings. Evacuate
and recharge system.
A/C RELAYS
Removal & Installation
A/C relays are located in left front corner of engine compartment, near battery. Unclip relay holder from its mounting bracket. Disconnect
relay wiring. DO NOT pull on wiring connector to remove relay from holder. Remove relay from holder. To install, reverse removal procedure.
A/C-HEATER CONTROL ASSEMBLY
Removal & Installation
1. A/C control module is located above radio. Remove accessory bezel. Remove radio (if necessary) and glove box. Disconnect
recirculated/fresh air cable from door lever. See Fig. 5
. Disconnect mode select cable from door lever. See Fig. 6 .
2. Disconnect temperature control cable from door lever. See Fig. 4
. Pull control assembly away from dash, and disconnect wiring
connectors. Remove control assembly.
3. To install, reverse removal procedure. Check and adjust temperature control, recirculated/fresh air and mode cables. See
ADJUSTMENTS. Test control assembly operation.
BLOWER MOTOR
Removal & Installation
Disconnect negative battery cable. Remove A/C air outlet duct located below steering column. See Fig. 2 . Disconnect blower motor wiring.
Remove blower motor attaching screws and blower motor. Remove blower wheel attaching nut. Remove blower wheel and washer. To install,
reverse removal procedure.
BLOWER MOTOR RESISTOR
Removal & Installation
Disconnect negative battery cable. Remove air duct located below steering column. See Fig. 2 . Disconnect blower motor resistor wiring.
Remove blower resistor attaching screws and resistor. To install, reverse removal procedure.
AIR DISTRIBUTION PLENUM
Removal & Installation
1. Remove instrument panel. See INSTRUMENT PANEL under REMOVAL & INSTALLATION. Drain cooling system. Disconnect
heater hoses in engine compartment. Disconnect wiring for blower motor and blower resistor. Disengage wiring harness and antenna
lead from bracket on front of air distribution housing.
2. Loosen connector duct-to-air inlet clamp screw. Remove upper and lower mounting nuts from plenum. Disengage and remove plenum
from defroster ducts. To install, reverse removal procedure. Refill cooling system, and check for leaks.
HEATER CORE
Removal & Installation
1. Remove air distribution plenum. See AIR DISTRIBUTION PLENUM under REMOVAL & INSTALLATION. Disconnect linkage
connecting defroster doors. Remove attaching screw located near blower resistor. Turn housing around and remove attaching screw
located near blower motor opening.
2. Remove clips retaining blower housing halves. Separate blower housing halves. Remove heater core. Remove tube insert from heater
core. To install, reverse removal procedure. Test system for proper operation.
INSTRUMENT PANEL
Removal & Installation
1. Disconnect negative battery cable. Remove steering wheel, steering column covers and multifunction switch assembly. Disconnect
electrical connectors from switches on instrument panel. Remove instrument cluster hood.
2. Disconnect speedometer cable from transmission. Remove 4 instrument cluster screws. Pull instrument cluster out from instrument
panel cluster enough to disconnect wiring and speedometer cable. Remove instrument cluster.
3. Remove steering column shield. Remove shield bracket. Remove glove box. Remove fuse panel cover and 4 fuse panel screws. Pull fu se
panel out, but DO NOT remove. Remove shift lever console and mount brackets. CAUTION: DO NOT rem ove screw in front of blower resistor, or blower resistor m ounting plate will fall into air
distribution plenum . T o retrieve plate, disassem ble instrum ent panel.
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4. Remove radio and A/C-heater control assembly. See A/C-HEATER CONTROL ASSEMBLY under REMOVAL &
INSTALLATION. Disconnect cigarette lighter connector. Remove snap-in trim inserts concealing instrument panel attaching bolts.
Remove 7 instrument panel attaching bolts.
5. Remove 2 lower instrument panel-to-body bracket stud nuts. Disconnect remaining electrical connectors from instrument panel.
Remove instrument panel. To install, reverse removal procedures.
WIRING DIAGRAM

Fig. 30: Manual A/C Heater System Wiring Diagram (Festiva)

Copyr ight 2009 Mitchell Repair Information Company, LLC. All Rights Reserved.
Article GUID: A00039084
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