1993 PONTIAC GRAND-PRIX Owners Manual

Maintenance Schedule
Section A: Scheduled Maintenance Services t~ont.3
Explanation of Scheduled Maintenance Services
Below are explanations of the services listed in Schedule I
and Schedule 11.
ITEM
NO. SERVICE
1 Engine Oil and Filter Change’:-Always use SG
Energy Conserving I1 oils for proper viscosity. The
“SG” designation may be shown alone or in
combination with others, such as “SG/CC,”
“SG/CD” or
“SF, SG, CC,” etc. To determine the
preferred viscosity for your vehicle’s engine (e.g.,
SAE
5W-30 or SAE 1OW-30) see the Index under
Engine OiZ. If your vehicle is equipped with an
Engine Oil-Change Indicator (EOCI)
, the
indicator will show you when to change oil. See
the
Index under Driver Information Center.
2 Chassis Lubrication-Lubricate the transaxle shift
linkage, parking brake cable guides, underbody
contact points and linkage. Lubricate the front and
rear suspension and steering linkage. The
proper fluids and lubricants to use are listed in Section
D. Make sure whoever services your vehicle uses these. All
parts should be replaced and all necessary repairs done
before you or anyone else drives the vehicle.
ITEM
NO. SERVICE
3 Throttle Body Mounting Bolt Torque (3.1L
Code T engine only)‘x- Check the torque of the
mounting bolts and/or nuts.
Tire and Wheel Rotation and Inspection -For
long wear and maximum tire life, rotate your tires
following the instructions in this manual. See the
Index under Tires, Inspection G. Rotation. Check
the tires for uneven wear or damage.
If you see
irregular or premature wear, check the wheel alignment. Check for damaged wheels also.
4
a The U.S. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify the emission warranty or
limit recall liability prior to the completion of vehicle useful life. General Motors, however, urges that all recommended maintenance services be
performed at the indicated intervals and the maintenance be recorded
in Section E: Maintenance Record.
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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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Maintenance Schedule
Section A: Scheduled Maintenance Services CCont.3
ITEM
NO.
11
12
SERVICE
Positive Crankcase Ventilation
Inspection*-Inspect system for proper function.
Replace any
worn, plugged or collapsed hoses or
seals. Replace valve only if necessary.
Exhaust Gas Recirculation (EGR) System
Inspection
(3.4L Code X engine only) %-
Conduct the EGR system service as described in
the service manual.
To purchase a service manual,
see the
Index under Service Publications.
ITEM
NO.
13
14
SERVICE
Air Cleaner Filter Replacement*-Replace every
30,000 miles (50 000 km) or more often under
dusty conditions. Ask your dealer for the proper
replacement intervals for your driving conditions
Fuel Tank,
Cap and Lines Inspection*&-Inspect
fuel tank, cap and lines (including fuel rails and
injection assembly) for damage or leaks. Inspect
fuel cap gasket for an even filler neck imprint or
any damage. Replace parts as needed. Periodic
replacement
of the fuel filter is not required.
NOTE: To determine your engine’s displacement and code, see the Index under Engine Identification
* An Emission Control Service.
a The US. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify the emission warranty or
limit recall liability prior to the completion of vehicle useful life. General Motors, however, urges that all recommended maintenance services be
performed at the indicated intervals and the maintenance be recorded in Section E: Maintenance Record.
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Section B: Owner Checks & Services
Listed below are owner checks and services which should be
performed at the intervals specified to help ensure the
safety, dependability and emission control performance of
your vehicle. Be
sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added
to your vehicle,
make sure they are the proper ones, as
shown in Section D.
At Each Fuel Fill (It is important for you or a sewice station attendant to perform these underhood checks at each fue\
l fill..)
CHECK
OR SERVICE WHAT TO DO
i
I Engine Oil Level
Check the engine oil level and add
the proper oil if necessary. See the Index under Engine Oil for
further details.
I
Engine Coolant Level Check the engine coolant level in the coolant recovery tank and add the proper coolant mix if
I necessary. See the Index under Coolant for further details.
Windshield Washer See the
Index under Windshield Washer Fluid for further details.
Fluid Level Check the windshield washer fluid level in
the windshield washer tank and add fluid
if necessary.
At Least Once a Month h
CHECK
OR SERVICE WHAT TO DO
Tire Inflation
Check tire inflation. Make
sure they are inflated to the pressures specified on the Tire-Loading
Information label located on the rear edge of the driver’s door or inside the trunk lid. See the
Index under Tires for further details.
At Least Twice a Year h I CHECK
OR SERVICE WHAT TO DO
Hydraulic Clutch
in this system could indicate a problem. Have the system inspected and repaired at once.
System Inspection Check the fluid level in
the clutch reservoir. See the Index under Hydraulic Clutch. A fluid loss
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Maintenance Schedule
Section B: Owner Checks & Services t~ont.3
At Least Once a Bar
CHECK
OR SERVICE I WHAT TO DO
I
Key Lock Cylinders I Lubricate the key lock cylinders with the lubricant specified in Section D.
Body Lubrication
Lubricate all body door hinges. Also lubricate all hinges and latches, including t\
hose for the
hood, trunk, glove box door, console door and any folding seat hardware. Se\
ction
D tells you
what to use.
I
When you are doing this check, the vehicle could move suddenly. If it does, you or others I
could be injured. Follow the steps below.
1. Defore you start, be sure you have enough room aIuund the vdcle.
2. Firmly apply both the parking brake (see the Index under Parking Brake if necessary) and the
regular brake.
NOTE:
Do not use the accelerator pedal, and be ready to turn off the engine immediately if it
starts.
3. On automatic transaxle vehicles, try to start the engine in each gear. The starter should work
only in
P (Park) or N (Neutral). If the starter works in any other position, your vehicle needs
service.
On manual transaxle vehicles, put the shift lever in
N (Neutral), push the clutch down halfway
and try to start the engine. The starter should work only when the clutch\
is pushed down all
the way to the floor.
If the starter works when the clutch isn’t pushed all the way down, your
vehicle needs service.
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~ ~~~ ~ CHECK
OR SERVICE
Steering Column Lock
Parking Brake and
Automatic Transaxle
P (Park) Mechanism
Check
Underbody Flushing
WHAT TO DO
While parked, and with the parking brake set, try to turn the key to Lock in each shift lever
position.
With an automatic transaxle, the key should turn to Lock only when the shift lever is in
With a manual transaxle, the key should turn to Lock only when the shift lever is in
P (Park).
R (Reverse).
On vehicles with a key release button,
try to turn the key to Lock without pressing the button.
The key should turn to
Lock only with the key button depressed. On all vehicles, the key
should come out
only in Lock.
A When you are doing this check, your vehicle could begin to move. You or others could be
a injured and property could be damaged. Make sure there is room in front of your vehicle
in case it begins to roll. Be ready to apply the regular brake at once should the vehicl\
e begin to
-we.
Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot
on the regular
brake, set
the parking brake.
To check the parking brake: With the engine running and transaxle in N (Neutral), slowly
remove foot pressure from the regular brake pedal.
Do this until the vehicle is held by the
parking brake only.
To check the P (Park) mechanism’s holding ability: Shift to P (Park). Then release all brakes.
At least every spring, use plain water to flush any corrosive materials from the underbody. Take
care to clean thoroughly any areas where mud and other debris can collect.
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Maintenance Schedule
Section C: Periodic Maintenance Inspections
Listed below are inspections and services which should be performed at least twice a year (for instance, each spring and fall).
You should let your GM dealer's service department or other qualified service center do these jobs. Make sure any necessary
repairs are completed at once.
INSPECTION
OR SERVICE
Steering, Suspension
and Front-Wheel-Drive
Axle Boot and Seal
Inspection
Exhaust System
Inspection
Throttle Linkage
Inspection
Brake System
Inspection
~~
WHAT SHOULD BE DONE
Inspect the front and rear suspension and steering system for damaged, loose or missing parts,
signs of wear,
or lack of lubrication. Inspect the power steering lines and hoses for proper
hookup, binding, leaks, cracks, chafing, etc. Clean and then in\
spect the drive axle boot seals for
damage, tears or leakage. Replace seals if necessary.
Inspect the complete exhaust system. Inspect the body near the exhaust system. Look for broken,
damaged, missing or out-of-position parts as well as open seams, holes, loose connections, or
other conditions which could cause a heat build-up
in the floor pan or could let exhaust fumes
into the vehicle. See the
Index under Engine Exhaust.
Inspect the throttle linkage for interference or binding, and for damaged or missing parts.
Replace parts as needed.
Inspect the complete system. Inspect brake lines and hoses for proper hooku\
p, binding, leaks,
cracks, chafing, etc. Inspect disc brake pads for wear and rotors for surface condition. Inspect
other brake parts, including calipers, parking brake, etc. Check parking brake adjustment. You
may need to have your brakes inspected more often if your driving habits or conditions result in
frequent braking.
Note: A low brake fluid level can indicate worn disc brake pads which may need to be serviced.
Also, if the brake system warning light stays on or comes on, something may be wrong with the
brake system. See the
Idex under Brake System Warning Light. If your vehicle is equipped with
anti-lock brakes and the anti-lock brake system warning light stays on, comes on or flashes,
something may be wrong with the anti-lock brake system. See the
Index under Anti-Lock Brake
System Warning Light.
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Section D: Recommended Fluids & Lubricants
NOTE: Fluids and lubricants identified below by name, part number or specification may be obtained from your GM dealer.
I USAGE
Engine Oil
Engine Coolant Hydraulic Brake
I system
Hydraulic Clutch
I system
I Parking Brake Guides
II
I I Automatic Transaxle
FWID/WBRICANT
GM Goodwrench Motor Oil or equivalent for API service SG Energy Conserving II oils of the
proper viscosity. The “SG” designation may be shown alone \
or
in combination with others, such
as “SGICC,” “SG/CD,” or “SF, SG, CC,” etc. To determine the preferred viscosity for your
vehicle’s engine,
see the Index under Engine Oil.
A 5060 mixture of water (preferably distilled) and good quality ethylene glycol base antifreeze
(GM
Part No. 1052753 or equivalent) conforming to GM Specification 1825M or approved
recycled coolant
conforming to GM Specification 1825111.
Delco Supreme
ll@ Brake Fluid (GM Part No. 1052535) or equivalent DOT-3 brake fluid.
Hydraulic Clutch Fluid (GM
Part No. 12345347) or equivalent.
~
Chassis lubricant meeting requirements of NLGI Grade 2, Category LB or GC-LB
(GM Part No. 1052497 or equivalent).
GM Hydraulic Power Steering Fluid (GM
Part No. 1052884) or equivalent.
Synchromesh Transmission Fluid (GM
Part No. 12345349) or equivalent.
DEXRON@-IIE Automatic Transmission Fluid (GM
Part No. 12345881).
I
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