1993 PONTIAC GRAND-PRIX air conditioning

Comfort Controls & Audio Systems
Climate Control
The air conditioner and heater work
best
if you keep your windows closed
while using them. Your vehicle also has
the flow-through ventilation system
described later in this section.
OFF: Press to turn the blower off.
Some air will still come from the outlets
at the floor. Press any function button
to turn the system on.
Temperature Control Lever: This
lever changes the temperature of the air
coming through the system. The higher
the lever setting, the warmer the air.
a: Selects the force of air you want.
Press
4 to lower the fan speed, b to
raise it.
Air Conditioning
There are three air conditioning
settings:
MAX: Provides maximum cooling or
quick cool-down on very hot days. This
setting recirculates much
of the air
inside your vehicle, and it should not be
used for long periods because the air
may become too cold and dry.
A/C: Use for normal cooling on hot
days. This setting brings in outside air,
cools it and directs it through the
instrument panel outlets.
B/L (Bi-Level): Use on cool, but
sunny days. This setting brings in the
outside air, but directs it in two ways.
The cool air
is directed to the upper
portion
of your body through the
instrument panel outlets, but most
warmed air is directed through the
heater ducts and
a little to the defrost
and side window vents. At times this
temperature difference may be more
apparent than others.
On very hot days, open the windows
long enough to let hot inside air escape.
This reduces the time your air
conditioner’s compressor will have to
run, which should help fuel economy.
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I
NOTEE II
Don’t use a razor blade or
something else sharp
on the inside
of the rear window. If you do, yo
could cut or damage the warmi
grid, and the repairs would
Flow-Through Ventilation System
Your Pontiac’s flow-through ventilation
system supplies outside
air into the
vehicle when it is moving. Outside air
will also enter the vehicle when the
heater or the air conditioning fan
is
running.
Ventilation Tips
Keep the hood and front air inlet free
of ice, snow, or any other obstruction
(such as leaves). The heater and
defroster will work €ar better,
reducing
the chance of fogging the
inside of your windows..
When you enter a vehicle in cold
weather, set the blower fan to the
highest setting for a
few moments
behe driving
off, This helps clear the
intake ducts of snow and moisture,
and reduces the chance of fogging the
inside
of your windows.
* Keep the air path under the front
seats clear of objects. This helps air to
circulate throughout your vehicle.
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Cooling System
3.1L V6
With 3-Speed Automatic Transaxle.. ....................................... 12.7 quarts 12.0 L
With 4-Speed Automatic Transaxle ......................................... 12.5 quarts 11.8 L
With 4-Speed Automatic Transaxle ......................................... 12.7 quarts 12.0 L
With 5-Speed Manual Transaxle ............................................. 12.9 quarts 12.2 L
Twin Dual Cam (DOHC) 3.4L V6
Refrigerant, Air Conditioning ......................................................... See refrigerant charge label under hood.
Not all air conditioning refrigerants are the same. If the air
conditioning system
in your vehicle needs refrigerant, be
sure the.proper refrigerant
is used. If you're not sure, ask your
Pontiac dealer.
Fuel Tank ........................................................................\
................... 16.5 gallons
Power Steering
Pump Only ........................................................................\
............. 2 pints
Wheel Nut Torque ........................................................................\
.... 103 lb. ft.
Battery Size '
3.1L V6 ........................................................................\
................... 525 CCA
3.4L V6 ........................................................................\
................... 690 CCA
62.0 L
.925 L
(140 Nom)
I
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ITEM
NO. SERVICE
ITEM NO. SERVICE
5
6
Engine
Accessory Drive Belt Inspection
(California
3.1L Code T, engine*)-Inspect the
belt for cracks, fraying, wear and proper tension.
Replace as needed,
Camshaft Timing Belt Inspection
(3.4L Code X
engine only)*-Inspect for cracks, wear or oiliness.
Check tensioner for proper operation. See the
service manual. (To purchase a service manual,
see the
Index under Publications.) Replace parts
as needed.
7 Cooling System Service*-Drain, flush and refill
the system with new or approved recycled coolant
conforming to
GM Specification 1825111. Keep
coolant at the proper mixture as specified. See the
Index under Coolant. This provides proper freeze
protection, corrosion inhibitor level, and engine
operating temperature.
Inspect hoses and replace if they are cracked,
swollen or deteriorated. Tighten screw-type hose
. clamps. Clean the outside of the radiator and air
conditioning condenser. Wash the pressure cap
and neck.
To help ensure proper operation, we recommend a
pressure test of both the cooling system and the
pressure cap.
8 Transaxle Service-For manual transaxles, fluid
doesn’t require changing.
For automatic transaxles, change both the fluid
and filter every
15,000 miles (25 000 lun) if the
vehicle is mainly driven under one or more of
these conditions:
In heavy city traffic where the outside
temperature regularly reaches
90°F (32°C) or
higher.
In hilly or mountainous terrain.
9
10
When doing frequent trailer towing. (With some
models,
you shouldn’t ever tow a trailer. See the
Index under Towing a Trailer.)
Uses such as found in taxi, police car or delivery
service.
If you do not use your vehicle under any
of these
conditions, change both the fluid and filter every
100,000 miles (160 000 km).
Spark Plug Replacement *-Replace spark plugs
with the proper type. See the
Index under
Replacement Parts.
Spark Plug Wire Inspection*+Inspect for
burns, cracks
or other damage. Check the boot fit
at the coils and at the spark plugs. Replace wires
as needed.
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