(25) Turn the key to OFF and remove the scan tool
from the vehicle.
(26) Test the operation of the horn, wipers and any
other functions that are steering column operated. If
applicable, reset the radio and the clock.
(27) If the steering column is a tilt column, verify
the tilt mechanism operates properly.
(28) Road test the vehicle to ensure proper opera-
tion of the steering system and the speed control sys-
tem.
STEERING COLUMN LOWER COUPLING
NOTE: Before proceeding with this removal and
installation procedure, review SERVICE WARNINGS
AND CAUTIONS at the beginning of REMOVAL AND
INSTALLATION in this section and in STEERING
GEAR.
REMOVAL
(1) Place the steering wheel in the STRAIGHT-
AHEAD position. Using a steering wheel holder, lock
the steering wheel in place to keep it from rotating
(Fig. 21). This keeps the clockspring in the proper
orientation.
(2) Inside the passenger compartment, remove the
steering column coupling retainer pin, back off the
pinch bolt nut, and remove the steering column cou-
pling pinch bolt (Fig. 22) (the pinch bolt nut is caged
to the coupling and is not removable). Separate the
upper and lower steering column couplings.
(3) Raise the vehicle. Refer to HOISTING in the
LUBRICATION AND MAINTENANCE group in this
service manual for the correct lifting procedure.(4) Release the locking tab on the wiring harness
connector for the power steering fluid pressure
switch before connector removal. Remove the wiring
harness connector from the power steering fluid pres-
sure switch (Fig. 23).
(5) Remove the bolt mounting the engine torque
strut to the right forward corner of the front suspen-
sion crossmember (Fig. 24).
Fig. 21 Steering Wheel Holder
1 ± STEERING WHEEL
2 ± STEERING WHEEL HOLDER
3 ± DRIVERS SEAT
Fig. 22 Steering Column Couplings
1 ± STEERING COLUMN UPPER COUPLING
2 ± PINCH BOLT
3 ± STEERING COLUMN LOWER COUPLING
4 ± BRAKE PEDAL
5 ± NUT
6 ± RETAINER PIN
Fig. 23 Power Steering Fluid Pressure Switch
1 ± WIRING HARNESS CONNECTOR
2 ± POWER STEERING GEAR
3 ± POWER STEERING FLUID PRESSURE SWITCH
4 ± REAR OF FRONT SUSPENSION CROSSMEMBER
19 - 38 STEERINGPL
REMOVAL AND INSTALLATION (Continued)
GENERAL INFORMATION
A/C APPLICATION TABLE
Item Description Notes
Vehicle PL Neon
System expansion valve
Total Refrigerant
CapacityR134a 765 grams / 27 oz / 1.69 lbs
Total Oil Capacity ND-8 PAG oil 180 ml / 6.10 oz
Compressor Nippondenso 10S17
Freeze-up Control Fin sensor-3 wire input to PCM, evaporator mounted, cycles
clutch off below 34É F, cycles back on
above 45É F
Low psi Control opens < 14 psi, resets > 38 psi expansion valve mounted
High psi Control opens > 470 psi, resets < 370 - 330 psi compressor mounted switch
Control head manual type
Mode Door cable
Blend Air Door cable
Fresh/Recirc door vacuum actuator
Blower Motor control head switched resistor block
Cooling Fan variable speed PCM controlled ISO solid state fan relay
Clutch
Control relay PCM
Draw 2.5 amps @ 12V60.5V @ 70É F
Gap 0.014º - 0.0269
DRB IIIT
Reads TPS, RPM, A/C switch test, fin sensor
A/C & fan relays
Actuators fan & clutch relays
HEATER AND AIR CONDITIONING CONTROL
Both the heater-only and heater-A/C systems use a
combination of, electrical, cable, and vacuum con-
trols. These controls provide the vehicle operator
with a number of setting options to help control the
climate and comfort within the vehicle. Refer to the
owner's manual in the vehicle glove box for more
information on the features, use, and suggested oper-
ation of these controls.
The heater-only or heater-A/C control panel is located
to the right of the instrument cluster on the instrument
panel. The control panel contains rotary-type knobs.
There is a blower motor speed switch, mode control
switch, temperature control, and airflow control.
The heater-only or heater-A/C control panel cannot
be repaired. If faulty or damaged, the entire unit
must be replaced. The control knobs and the illumi-
nation lamps are available for service replacement.
HEATER AND AIR CONDITIONING
All vehicles are equipped with a common heater-
A/C housing assembly (Fig. 1). The system combines
air conditioning, heating, and ventilating capabilities
in a single unit housing mounted under the instru-
ment panel. On heater-only systems, the evaporator
coil is omitted from the housing and replaced with an
air restrictor plate.
Outside air enters the vehicle through the cowl top
opening at the base of the windshield, and passes
through a plenum chamber to the heater-A/C system
blower housing. Air flow velocity can then be
adjusted with the blower motor speed selector switch
on the heater-A/C control panel. The air intake open-
ings must be kept free of snow, ice, leaves, and other
obstructions for the heater-A/C system to receive a
sufficient volume of outside air.
24 - 2 HEATING AND AIR CONDITIONINGPL
