Ford Festiva. Instruction — part 87

5. Check blower motor fan switch continuity. Resistance should not exceed 4 ohms. See

BLOWER MOTOR FAN SWITCH

CONTINUITY

table. If continuity is not present, replace fan switch. If continuity is okay, repair open in Black wire from blower motor

switch to ground.

BLOWER MOTOR FAN SWITCH CONTINUITY

REMOVAL & INSTALLATION

CONTROL PANEL

1. Remove bezel screws and accessory bezel. Remove radio. Remove 4 screws securing control panel to instrument panel. Remove glove

box attaching screws and glove box. Remove the retaining clip and disconnect fresh/recirculation air door cable from mode door lever.

2. Disconnect mode select cable at mode control door lever. Disconnect temperature control cable at temperature control mode door lever.

Pull control panel away from instrument panel. Disconnect blower motor switch connector. Disconnect illumination electrical
connector. Remove control panel. To install, reverse removal procedure. Adjust control cables. See ADJUSTMENTS in this article.

BLOWER MOTOR FAN SWITCH

Remove control panel. See

CONTROL PANEL R & I

. Remove blower motor fan switch knob. Remove attaching nut. To install, reverse

removal procedure.

HEATER CORE

1. Disconnect negative battery cable. Remove steering wheel by prying out center trim insert and removing steering wheel retaining nut.

Remove 2 steering wheel cover retaining screws and remove cover. Using a steering wheel puller, remove steering wheel.

2. Remove 5 screws and remove lower and upper steering column covers. Disconnect electrical connections and remove multifunction

switch. Remove 5 screws and pull instrument cluster hood rearward. Disconnect electrical connections and remove instrument cluster
hood.

3. Disconnect speedometer cable at transaxle. Remove 4 instrument cluster screws. Pull instrument cluster rearward and disconnect

speedometer cable and electrical connections. Remove instrument cluster.

4. Remove 2 center bracket mounting bolts under steering column and remove bracket. Remove glove box attaching screws and remove

glove box. Remove left and right heater ducts. Remove fuse panel cover. Remove 2 screws securing fuse panel and push fuse panel
inward. DO NOT remove fuse panel.

5. Slide both seats to most forward position. Remove 2 console attaching screws, located in front of seat belt anchors. Slide both seats to

rearmost position. Remove parking brake console insert. Using a Phillips screwdriver, remove push retainer insert, located at front lower
edge of parking brake console. Pull back on parking brake lever and remove parking brake console.

6. Remove gearshift knob. Remove screws and remove shift console. Remove radio/heater control panel bezel screws and remove bezel.

Remove 4 radio attaching screws. Pull radio out and disconnect antenna lead and electrical connections. Disconnect radio ground lead
and remove radio.

7. Remove 4 screws attaching heater control panel. Disconnect control cables and electrical connections. Remove control panel, while

pulling cables through opening.

8. Pry out bolt cover trim inserts in top corners of dash. Remove bolts located under trim panels. Remove 7 instrument panel attaching

bolts and 2 nuts. Pull instrument panel rearward. Disconnect any harness connectors and clips. Remove instrument panel.

9. Disconnect electrical connections at blower and resistor. Remove harness from routing brackets on heater box. Loosen clamp screw

securing air inlet housing. Remove attaching nuts at top and bottom of heater box. Disconnect defroster ducts and remove heater
assembly.

10. Disconnect link connecting 2 defroster doors. Remove attaching screw just above and to right of blower resistor. Turn heater assembly

around and remove screw just to left of blower motor opening. Remove clips securing 2 halves of heater assembly. Separate halves. Lift
out heater core.

11. To install, reverse removal procedure. Ensure all heater control cables are routed and adjusted properly. See ADJUSTMENTS in this

article. Fill cooling system. Check for leaks.

BLOWER MOTOR & RESISTOR

Disconnect negative battery cable. Remove instrument panel spacer brace located below steering column. Remove airflow duct below steering
column. Disconnect blower motor or resistor wiring. Remove 3 blower motor attaching screws or 2 resistor attaching screws and remove
component. To install, reverse removal procedure.

Switch Position

Continuity Between Wire Colors

1

Black-to-Blue/White

2

Black-to-Blue/Yellow & Blue/Yellow-to-Blue/Red

3

Black-to-Blue/Black & Blue/Black-to-Blue/Red

Fig. 1: Exploded View of Heater Unit

Courtesy of FORD MOTOR CO.

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

WIRING DIAGRAMS

Fig. 2: Heater Wiring Diagram

Application

INCH Lbs. (N.m)

Steering Wheel Nut

29-36 (39-49)

Fig. 3: Heater Wiring Diagram (1992 Model)

Copyright 2009 Mitchell Repair Information Company, LLC. All Rights Reserved.

Article GUID: A00039001

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1991 AIR CONDITIONING & HEAT

MANUAL A/C

A/C SYSTEM SPECIFICATIONS

SPECIFICATIONS

DESCRIPTION

This A/C-heater system is fully integrated to provide cooling, heating and ventilation with either fresh or recirculated air. A/C system is
expansion valve type. Interior air temperature is controlled by cycling the compressor on and off at different rates. A/C compressor is protected
by a low pressure switch, which stops compressor operation when refrigerant pressure is too low. Compressor operation is cut when throttle is
wide open to improve driveability.

The primary system components are compressor, receiver-drier, evaporator, low pressure switch, thermostatic switch, thermostatic expansion
valve, A/C control module, refrigerant lines and air ducts. See

Fig. 1

and

Fig. 2

. The heater core is continuously supplied with coolant. To

control temperature, air goes through and/or around heater core by way of temperature blend door.

Fig. 1: Identifying A/C System Components

Courtesy of FORD MOTOR CO.

CAUTION:

When discharging air conditioning system, use only approved refrigerant recovery/recycling
equipment. Make every attempt to avoid discharging refrigerant into the atmosphere.

Application

Specification

Compressor Type

Nippondenso 10-Cylinder

Refrigerant (R-12) Capacity

25 ozs.

System Oil Capacity

10 ozs.

Compressor Belt Deflection

New

9/32-11/32" (8-9 mm)

Used

11/32-7/16" (9-11 mm)

System Operating Pressure

(1)

Low Side

19-25 psi (1.3-1.7 kg/cm

2

)

High Side

199-220 psi (13.9-15.4

kg/cm

2

)

(1)

When measured at 79°F (26°C).