1991 FORD FESTIVA wheel

compressor label before adding refrigerant oil to A/C compressor/system. See Fig. 2 . The following R-134a refrigerant oils are currently
available.
Lexus
PAG Refrigerant Oil (ND-OIL 8) with 10P/10PA swashplate (piston) compressor. Synthetic Refrigerant Oil (ND-OIL 9) with through-va n e
(rotary vane) compressor.
Mercedes-Benz
PAG Refrigerant Oil (001 989 08 03).
Nissan
PAG Refrigerant Oil (KLH00-PAGR0) with rotary vane compressor. PAG Refrigerant Oil (KLH00-PAGS0) with piston (swashplate)
compressor.
Saab
PAG Refrigerant Oil (40 74 787).
SERVICE EQUIPMENT
Because R-134a is not interchangeable with R-12, separate sets of hoses, manifold gauge set and recovery/recycling equipment are required to
service vehicles. This is necessary to avoid cross-contaminating and damaging system.
All equipment used to service systems using R-134a must meet SAE standard J1991. The service hoses on the manifold gauge set must have
manual (turn wheel) or automatic back-flow valves at the service port connector ends. This will prevent refrigerant from being released into
the atmosphere.
For identification purposes, R-134a service hoses must have a Black stripe along its length and be clearly labeled SAE J2196/R-134a. The low
pressure test hose is Blue with a Black stripe. The high pressure test hose is Red with a Black stripe, and the center test hose is Yellow with a
Black stripe.
R-134a manifold gauge sets can be identified by one or all of the following.
Labeled FOR USE WITH R-134a on set
Labeled HFC-134 or R-134a on gauge face
Light Blue color on gauge face
In addition, pressure/temperature scales on R-134a gauge sets are different from R-12 manifold gauge sets.
SYSTEM SERVICE VALVES
SCHRADER-TYPE VALVES
Schrader valve is similar in construction and operation to a tire valve. When a test gauge hose with built-in valve core depressor is attached,
Schrader stem is pushed inward to the open position and allows system pressure to reach gauge.
If test hose does not have a built-in core depressor, an adapter must be used. Never attach hose or adapter to Schrader valve unless it is first
connected to manifold gauge set.
Refrigerant R-12 Schrader-type valve cores have TV5 thread size. Refrigerant R-134a Schrader-type valve cores use M6 (Metric) threads. R-
134a valve cores can be easily identified by use of "O" rings and external spring. See Fig. 1
.
SERVICE VALVE LOCATIONS
SERVICE VALVE LOCATIONS NOTE:Synthetic/PAG oils absorb m oisture very rapidly, 2.3-5.6% by weight, as com pared to a m ineral oil
absorption rate of .005% by weight.
NOTE:Refrigerant R-12 service hoses will ONLY be labeled SAE J2196.
NOTE:Although sim ilar in construction and operation to a tire valve, NEVER replace a Schrader-type valve
with a tire valve.
VehicleHighLow
Audi(14) (15)
Acura(2) (3)
BMW(4) (5)
Chrysler, Eagle & Mitsubishi
Colt, Mirage & Summit(10) (11)
Colt Vista & Summit Wagon(10) (11)
Diamante(1) (1)
Eclipse & Expo(10) (11)
Galant(10) (11)
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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 PositionContinuity Between Wire Colors
1Black-to-Blue/White
2Black-to-Blue/Yellow & Blue/Yellow-to-Blue/Red
3Black-to-Blue/Black & Blue/Black-to-Blue/Red
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Fig. 1: Exploded View of Heater Unit

Courtesy of FORD MOTOR CO.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS
WIRING DIAGRAMS

Fig. 2: Heater Wiring Diagram

ApplicationINCH Lbs. (N.m)
Steering Wheel Nut29-36 (39-49)
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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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1971-96 MAINT ENANCE & SERVICE INFORMAT ION
Interference Verification Check For OHC Engine - T im ing Belt Inform ation
TIMING BELT INTERFERENCE VERIFICATION INFORMATION
TIMING BELT INTERFERENCE CAUTION
Crack Or Tears In Belt Surface
Missing, Damaged, Cracked Or Rounded Teeth
Oil Contamination
Damaged Or Faulty Tensioners
Incorrect Tension Adjustment
TIMING BELT REPLACEMENT INTERVAL & INTERFERENCE VERIFICATION
TIMING BELT REPLACEMENT INTERVAL & INTERFERENCE VERIFICATION (FORD PASSENGER CARS)
(1)
TIMING BELT REPLACEMENT INTERVAL & INTERFERENCE VERIFICATION (MERCURY PASSENGER CARS)
(1) CAUT ION: T he condition of cam shaft tim ing belts should always be checked on vehicles which have m ore than
50,000 m iles. Although som e m anufacturers do not recom m end replacem ent at a specified m ileage,
others require it at 60,000-100,000 m iles. A cam shaft drive belt failure m ay cause extensive dam age to
internal engine com ponents on m ost engines, although som e designs do not allow piston-to-valve
contact. T hese designs are often called "Free Wheeling". Many m anufacturers changed their
m aintenance and warranty schedules in the m id-1980's to reflect tim ing belt inspection and/or
replacem ent at 50,000-60,000 m iles. Most service interval schedules shown in this section reflect these
changes. Belts or com ponents should be inspected and replaced if any of the following conditions
exist:
ApplicationYear SpanEngineReplacement Interval (Miles)
Aspire1994-961.3L 4-Cyl.60,000
Contour1995-962.0L 4-Cyl.60,000
Escort1981-851.6L 4-Cyl.60,000
Escort1985-961.9L 4-Cyl.60,000
Escort1984-87(2) 2.0L 4-Cyl. Diesel(4) 100,000
Escort1991-961.8L 4-Cyl.60,000
EXP1981-851.6L 4-Cyl.60,000
EXP1985-961.9L 4-Cyl.60,000
Fairmont1978-832.3L 4-Cyl.(3) 60,000
Festiva1988-931.3L 4-Cyl.60,000
Granada1981-822.3L 4-Cyl.(3) 60,000
LTD1983-862.3L 4-Cyl.(3) 60,000
Mustang1974-932.3L 4-Cyl.(3) 60,000
Pinto1971-742.0L 4-Cyl.(3) 60,000
Pinto1974-802.3L 4-Cyl.(3) 60,000
Probe1989-92(2) 2.2L 4-Cyl.60,000
Probe1993-96(2) 2.0L 4-Cyl.60,000
Probe1993-962.5L V660,000
Taurus SHO1989-953.0L V6100,000
Taurus SHO1993-953.2L V6100,000
Tempo1984-87(2) 2.0L 4-Cyl. Diesel(4) 100,000
Thunderbird1983-882.3L 4-Cyl.(3) 60,000
(1)Other interference engine applications may exist which are not indicated here.
(2)Interference engine. Check for possible damage to piston(s) or valve(s) if there has been a timing belt failure.
(3)Although the vehicle manufacturer does not recommend a specific scheduled maintenance interval, aftermarket belt manufacturers
suggest the belt be replaced at 60,000 mile intervals.
(4)Vehicle manufacturer recommends replacing all belts at the same time.
ApplicationYear SpanEngineReplacement Interval (Miles)
Bobcat1974-802.3L 4-Cyl.(3) 60,000
Capri1971-721.6L 4-Cyl.(3) 60,000
Capri1971-742.0L 4-Cyl.(3) 60,000
Capri1974-842.3L 4-Cyl.(3) 60,000
Capri1991-941.6L 4-Cyl.60,000
Cougar1984-862.3L 4-Cyl.(3) 60,000
LN71981-85(2) 1.6L 4-Cyl.(3) 60,000
Lynx1981-85(2) 1.6L 4-Cyl.(3) 60,000
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MAINTENANCE INFORMATION
1988-93 MAINT ENANCE Ford Motor Co. Maintenance Inform ation
MODEL IDENTIFICATION
VIN LOCATION
The Vehicle Identification Number (VIN) is located on the left side of the dash panel at the base of the windshield. The VIN chart explains the
code characters.
VIN CODE ID EXPLANATION
Numbers preceding the explanations in the legend below refer to the sequence of characters as listed on VIN identification label. See VIN
example below.

Fig. 1: VIN Code ID Explanation

MAINTENANCE SERVICE INFORMATION
SEVERE & NORMAL SERVICE DEFINITIONS
Service is recommended at mileage intervals based on vehicle operation. Service schedules are based on the following primary operating
conditions:
Severe Service
Short Trips (About 10 Miles) In Freezing Temperatures
Towing Or Heavily Loaded
Severe Dust Conditions
Hot Weather, Stop-And-Go Driving
Extensive Idling Conditions (Taxi Or Delivery Type Service)
Normal Service
NOTE:For scheduled m aintenance intervals and the related fluid capacities, fluid specifications and labor
tim es for m ajor service intervals, see SCHEDULED SERVICES article in this section. Warranty
inform ation and specifications for fluid capacities, lubrication specifications, wheel and tire size, and
battery type are covered in this article.
NOTE:Use the Severe Service schedule if the vehicle to be serviced is operated under ANY (one or m ore) of
these conditions:
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Driven More Than 10 Miles Daily
No Operating Conditions From Severe Service Schedule
CAMSHAFT TIMING BELT
The condition of camshaft drive belts should always be checked on vehicles which have more than 50,000 miles. Although some
manufacturers do not recommend belt replacement at a specified mileage, others require it at 60,000-100,000 miles. A camshaft drive belt
failure may cause extensive damage to internal engine components on most engines, although some designs do not allow piston-to-va l ve
contact. These designs are often called "Free Wheeling".
Many manufacturers changed their maintenance and warranty schedules in the mid-1980's to reflect timing belt inspection and/or replacement
at 50,000-60,000 miles. Most service interval schedules in this manual reflect these changes.
Belts or components should be inspected and replaced if any of the following conditions exist:
Cracks Or Tears In Belt Surface
Missing, Damaged, Cracked Or Rounded Teeth
Oil Contamination
Damaged Or Faulty Tensioners
Incorrect Tension Adjustment
Replace camshaft timing belt every 60,000 miles.
COOLING SYSTEM
Replace engine coolant every 36 months or 30,000 miles. Check condition of hoses and clamps every 12 months or 15,000 miles, whichever
comes first. Replace hoses and clamps if necessary.
SERVICE POINT LOCATIONS

Fig. 2: Engine Service Point Locations (1988
-89 1.3L 2V Carb.)
Courtesy of FORD MOTOR CO. CAUT ION: Failure to replace a faulty cam shaft tim ing belt m ay result in serious engine dam age.
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Fig. 3: Engine Service Point Locations (1989
-93 1.3L EFI)
Courtesy of FORD MOTOR CO.

Fig. 4: Jacking & Hoisting Points

Courtesy of FORD MOTOR CO.
ALIGNING CAMSHAFT TIMING MARKS
NOTE:For m ore inform ation regarding vehicle lifting refer to the JACKING & HOISTING article in the WHEEL
ALIGNMENT section.
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