1993 GMC SIERRA fuel

Scheduled Maintenance Services
13. EGR SYSTEM INSPECTION* -Conduct EGR SYSTEM CHECK as
described in the Service Manual.
14. ELECTRONIC VACUUM REGULATOR VALVE (EVRV) INSPECTION*
-Inspect filter for excessive contamination or plugging. If required, clean
element with a solution of biodegradable soap and water, let
dry and
reinstall element.
15. ENGINE TIMING CHECK AND DISTRIBUTOR CHECK (SOME
MODELS)”
-Adjust timing to underhood label specifications. Inspect the
inside and outside of the distributor cap and rotor for cracks, carbon
tracking and corrosion. Clean or replace as needed.
cap and lines for damage or leaks. Remove fuel cap, inspect g\
asket for
an even filler neck imprint, and any damage. Replace parts as \
needed.
16. FUEL TANK, CAP AND LINES INSPECTION* -Inspect the fuel tank,
17. THERMOSTATICALLY CONTROLLED AIR CLEANER INSPECTION*
A-(If so equipped.) Inspect all hoses and ducts for proper hookup.
Make sure valve works properly.
Look for cracks, fraying, wear, and proper tension. Adjust or replace as
needed.
19. EVAPORATIVE CONTROL SYSTEM (ECS) INSPECTION* -Check all
fuel and vapor lines and hoses for proper hookup, routing, and\
condition.
Check that the purge valve works properly,
if equipped. Replace as
needed.
18. ENGINE ACCESSORY DRIVE BELT(S) INSPECTION* --Inspect belts.
20. SHIELDS AND UNDERHOOD INSULATION INSPECTION Am-Inspect
shields and underhood insulation for damage or looseness. Adjust\
or
replace as required.
21. AIR INTAKE SYSTEM INSPECTlONAWCheck the air intake system
installation to see that gaskets are seated properly and all hose
connections, fasteners, and other components are tight. Also check to be
sure that the air cleaner housing is properly seated, that the\
cover fits
tightly, and the wing nuts are tight. Tighten connections and \
fasteners or
replace damaged parts as required.
22. THERMOSTATICALLY CONTROLLED ENGINE COOLING FAN INSPECTI0NA.-(If
so equipped.) With the engine off and below
normal operating temperature, check to see that the fan can be rotated
by hand on fluid coupling or viscous drives. Replace as necessary.
*An Emission Control Service
AAlso a Noise Emission Control Service
.Applicable only to vehicles
sold in the United States
7-20
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On manual transmission 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.
Steering column lock operation -While parked, try to turn the key to Lock
in each gear shift position.
With an automatic transmission, the key should turn to
Lock only when the
gear shift is in
P (Park).
On vehicles with a key release lever, try to turn the key to
Lock without
pressing the lever. The key should turn to
Lock only with the key lever
depressed.
On all vehicles, the key should come out only in
Lock.
Parking brake and transmission
P (PARK) mechanism operation -
CAUTION I
4 When you are doing this check, your vehicle could begin to move.
You
or others could be injured and property could be damaged.
Make sure there is
room in front of your vehicle in case you begin
to
roll. Be ready to apply the regular brake at once should the
vehicle begin to move.
IW
Park on a fairly steep hill, with the vehicle facing downhill.\
Keeping your foot
on the regular brake, set the manual parking brake.
To check the parking brake: With the engine running and the
transmission 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 “Park” mechanism’s holding ability: Apply the \
regular brake
and shift to
P (Park). Release the manual parking brake, then slowly
release the regular brake.
Lap and shoulder belts condition and operation -Inspect belt system,
including: webbing, buckles, latch plates, retractors, guide loop\
s and anchors.
Have a belt assembly replaced
if the webbing has been cut or otherwise
damaged.
Body
Lubrication Service -Lubricate all body door hinges with engine oil.
Also lubricate the tailgate, tailgate handle pivot points, and tailga\
te mounted
spare tire carrier
(if equipped). Lubricate the body hood, fuel door and rear
compartment hinges, latches and locks including interior glove
box and
console
doors, and any folding seat hardware. Lubricate the hood safety lever
pivot and prop
rod pivot. More frequent lubrication may be required when
exposed to a corrosive environment.
7-23
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Scheduled Maintenance Services
Recommended Fluids & Lubricants
Hood Latch Assembly a. Pivots and spring anchor
b. Release Pawl
Front Wheel Bearings
Propeller Shaft Spline/Universal Joint
Automatic Transmission Shift Linkage, Floor
Shift Linkage, Hood and Door Hinges, Body
Door Hinge Pins, Tailgate Hinge and Linkage,
Folding Seat, Fuel
Door Hinge
Key Lock Cylinders
Zhassis Lubrication
Windshield Washer Solvent and Anti-Freeze
Neatherstrip
Mer Tailgate Handle Pivot Points a. Engine
oil (GM Part
No. 1050109).
b. Chassis grease meeting requirements
of
GM-6031-M (GM Part No. 1052497).
Chassis grease meeting requirements
of NLGl
Grade 2, Category LB or GC-LB (GM Part
No.
1052497).
Chassis grease meeting requirements
of
GM-6031-M (GM Part No. 1052497)
Engine oil
Use regular engine oil or
a synthetic light
weight engine oil
(SAE 5W-30).
Chassis grease meeting requirements
of
GM-6031 (GM Part No. 10524971.
GM Optikleen washer solvent (GM Part
No.
1051515) or equivalent.
Silicone grease (GM Part
No. 12345579) or
equivalent.
Multi-purpose lubricant meeting requirements
of
GM Part No. 12345120.
TO392
7-26
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Scheduled Maintenance Services
Service Station Checks
It is important for you or a service station attendant to perform these
under-hood checks at each fuel
fill.
Check the engine oil level and add if necessary.
Check the engine coolant level in the recovery bottle and add if
necessary.
Check the windshield washer fluid level and add if necessary.
See these items in the Index
for information on how to check them.
7-28
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1993 SERVICE PUBLICATIONS
ORDERING INFORMATION
You can get manuals that tell how to operate and service your veh\
icle.
To order them, fill out the order form on the next page and send it to
the address below.
GMC Truck Service Publications
Post Office Box 436006 Pontiac, MI 48343
If you have questions or would like to order using your credit c\
ard, call
us TOLL FREE at
1-800-627-5699.
From outside the Continental United States, please call 1-313-45\
5-8016
GLOVE BOX LITERATURE FOR YOUR SIERRA
Manual Form Number Price
Owner’s Manual X-9304 $5.50
Warranty Manual X-931 7 $2.00
Vehicle Storage Manual x-01
01 -
You can also order the Glove Box Literature in a vinyl pottfolio which
includes all of these publications.
Ask for form number 15690052-it
costs
$1 4.00.
SERVICE MANUALS FOR ALL LIGHT DUTY TRUCKS
*Includes Fuel and Emissions Manual X-9336
Model Form Number Price*
1993 C/K Models X-9331 $62.00
1993
G Van x-9357 $70.00
1993 P3
81 PIG Models X-9332 $64.00
1993 Safari X-9330 $62.00
1993
S/T Models X-9329 $6 1 .OO
There are other service manuals you can buy that cover the el\
ectrical
systems and unit repair. Call us to get a catalogue listing o\
f all these
manuals.
PRODUCT SERVICE PUBLICATIONS
Description Form Number Price
* 1990 Model Year Index PSP I 90 Free
1991 Model Year Index PSP I 91 Free
1992 Model Year Index PSP I 92 Free
1993 Model Year Index PSP I 93 Free
1993 Model Year Product Service
Publication Subscription
PSP 93 $75.00
Above Subscription With Binder PSP 93B $85.00
Binder Only PSP B $1 5.00
Prices subject to change without notice.
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C
Camper Wiring Harness .............. 2-91
Capacities/Specification Charts .. 6-95
Cassette Tape Player
Catalytic Converter
...................... 6-65
Certificationnire Label
................. 6-67
Changing
A Flat Tire ........ 5.17. 5-23
Chemical Paint Spotting
.............. 6-90
Child Restraints
Cigarette Lighter/Ashtrays
........... 2-62
Circuit Breakers (See “Fuses”)
Cleaning (See
“Audio Systems”)
(See “Safety Belts”)
Finish Care
................................ 6-88
Glass
.......................................... 6-87
Inside of Vehicle
....................... 6-85
Instrument Panel. Top
............. 6-87
Outside of Vehicle
.................... 6-88
Special Problems
...................... 6-86
Vinyl
or Leather ........................ 6-87
Wheels and Tires
..................... 6-89
Windshield
................................ 6-88
Clock
................................... 3-1 2. 3-1 5
Computer Command Control
System
..................................... 6-66
Conversion to Chassis Cab
........ 6-72
Coolant (See “Engine”)
Cooling System
............................ 5-1 1
Capacity
.................................... 6-96
Crankcase Capacity
...................... 6-96
Cruise Control
............................... 2-47
Increase Speed
......................... 2.50
On Hills ...................................... 2-51
Passing
...................................... 2-51
Resume
..................................... 2-49
Set
.............................................. 2-48
To Get Out Of
.......................... 2-52
Cup Holder
.................................... 2-65
Customer Assistance for the
Customer Satisfaction Procedure.8-2 Reduce Speed
.......................... 2-51
Hearing
or Speech Impaired .... 8-3
D
Daytime Running Lights
(Canada Only)
.................... 2.55. 2-84
Indicator Light
............... 2.55. 2-84
Diesel Fuel (See “Fuel”)
Dome Lights
................................. 2-56
Doors
............................................... 2-5
Driving Locks
............................................ 2-6
Across an Incline
..................... 4-33
After Off-Road Driving
............ 4-36
At Night
.......................... 4.36. 4-38
Backing Up
............................... 4-59
Defensive
................................... 4-10
Downhill
..................................... 4-31
Freeway
..................................... 4-43
High Beams
.............................. 4-37
Highway Hypnosis
................... 4-46
Hydroplaning
............................. 4-39
In Blizzard
................................. 4-54
In City
....................................... 4-42
In Fog. Mist and Haze
. 4.41 . 4-42
In Rain
............................ 4.38. 4-40
In Sand. Mud. Ice.
Or Snow .................................. 4-34
In Water
.................................... 4-35
Long Distance
.......................... 4-45
Loss of Control
........................ 4-24
Night Vision
.............................. 4-37
Off-Roading
............................... 4-25
On Curves
................................. 4-20
On Grades
................................. 4-60
On Hill and Mountain Roads
. 4-47
On Off-Road Hills
.................... 4-28
On Snow
or Ice .. 2.15. 4.52. 4-55
Passing
............................ 4.22. 4-59
Skidding
..................................... 4-24
Stuck in Deep Snow
..... 4.54. 5-33
Through Water
.............. 2.15. 4-35
Uphill
.......................................... 4-29
Winter
........................................ 4-52
With a Trailer
............................ 4-55
Drunken Driving
........................... 4-11
9-2
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1 Add-on Equipment ................... 6-94
I- Electronic Heatinghir Conditioning
(See "Heating")
Adding Coolant
... 5.12, 5.14. 6-44
... Engine I
Air Cleaner ................................ 6-31
Block Heater
.......... 2.19. 3.5. 6-26
Cold Weather Starting (Diesel)
.................... 2-1 7
Coolant
....... 5.12. 5-1 4. 6.42. 6-96
Coolant Temperature Gage
...... 2-88
Diesel
................................ 6.6. 6-1 9
Crankcase
.................................. 6-96
Fan Noise
.................................. 5-1 7
Noise Control System
.............. 6-1 9
.-Identification,
............................ 6-95
Oil .(See "Oil")
Overheating
................................. 5-9
Running While Parked
............. 2-35
Equipment, Add-on
...................... 6-69
Exhaust System
................ 2.34, 6-65
Exhaust
........................... 2.34,
6-65
Starting
............................ 2.12, 2-1 5
F
Fan Noise ...................................... 5-1 7
Filter
. Replacement Chart ............ 6-99
Finish Care
............................................ 6-88
Damage
..................................... 6-90
Automatic Transmission
........... 6-33
Brake
.......................................... 6-49
Coolant
............................ 5-1 2. 6-42
Front Axle
.................................. 6- 40
Hydraulic Clutch
....................... 6-37
Leak Check
................................ 6-52
Manual Transmission
................ 6-36
Power Steering
............ 1 ............ 6-46
Radiator
....................................... 5-1 4
Fluid
9-3
Rear Axle .................................. 6-41
Recommended Fluids
.............. 7-25
. Transfer Case ............................ 6-39
Windshield Washer.
................. 6-48
Fog Lamps
.................................... 2-54 .
Four-wheel Drive ............... 2.36, 6-39
Transfer Case
................ .2-37, 6-39
Front Axle
................................. 6-40
Fuel (Diesel Engines)
..................... 6.6
Cold Weather Operation
............ 6-7
Filter Replacement
........ 6-1 1, 6.13,
6-99
Fuel Requirements
..................... 6-6
Gage
........................ ; ................. 2-87
Running Out Of
........................ 6-10
Tank Capacity
........................... 6-97
Water in Fuel
.............................. 627
Fuel (Gasoline Engines)
................. 6-4
Filling Your Ta'nk
....................... 6-16
Foreign
. Countries ..................... 6-15
Gage
.......................................... 2-87
Gasolines for Cleaner Air
......... 6-5 A-
Fuses and Circuit
Breakers
............................ 6-64, 6-1 01 * .
Fuse Block ................................ 6-65 . . f
Headlights .................... 6.64, 6-100
Power Windows and Other
Trailer Wiring Harness
.. 6.64, 6-1 00
. Windshield Wipers ...... 6-64, 6-100
G
Gages ............................................ 2.87
Coolant Temperature Gage
..... 2-88
Fuel Gage
.................................. 2-87
Odometer
................................... 2-76
Oil Pressure Gage
..................... 2-89
Speedometer.
............................ 2-76
Tachometer
..................... 2.76, 2-78
Trip Odameter 2-77
Voltmeter
................................... 2-90
-
-.
I
Power Options ......... 6.64, 6-100 :
. ...........................
...
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INDEX
H
Halogen Bulbs .............................. 6-55
Hazard Warning Flashers
.............. 5-2
Head Restraints
.............................. 1-5
Headlights .......................... 2.53. 6-55
Composite
.................................. 6-56
Halogen
..................................... 6-55
High-Low Beam
........................ 2-44
Reminder
................................... 2-54
Sealed Beam
............................. 6-55
Heating System (with NC)
........... 3-5
Rear Window Defogger
............. 3-8
System Controls
......................... 3-6
Fan Knob
..................................... 3-4
Function Lever
............................ 3-4
Temperature Lever
...................... 3-4
Hitches
........................................... 4-58
Hood Checking Under
........................ 6-17
Latches and Hinge
................... 6-53
Release
...................................... 6-1 7
Horn
............................................... 2-41
Hydraulic Clutch
........................... 6-37
Grease Fitting
............................ 6-39
Hydro-Boost System (Hydraulic Pump)
..................... 6-50
Hydroplaning
................................. 4-39
I
If You’re Stuck In Sand. Mud.
Ice or Snow
.............................. 5-33
Ignition Switch
.............................. 2-1 0
Inflation-Tire Pressure ................. 6-73
Instrument Panel
............... 2-70. 2-76
Diesel Tach Cluster .................. 2-75
Standard Cluster
............ 2-72, 2-73
J
High Beam Indicator Light ...... 2-85
Heating System (without AIC)
..... 3-4
Rear Window Defogger
............. 3-8
Highway Hypnosis
........................ 4-46 Jack Storage
...................... 5.19.
5-31
Jump Starting
................................ 5-3
K
Key Release Lever ....................... 2-11
Keys
................................................. 2-3
L
Lights ............................................. 2-53
Brake System Warning
............ 4-18
Bulb Replacement
......... .6-54, 6-98
Cargo Lamp
.................... 2-58, 6-61
Charging System Light
........... 2-82
Check Gages Light
.................. 2-84
Dome Lights
............................. 2-56
Fender
........................................ 6-59
Fog Lamps
................................ 2-54
Glow Plugs Light
........... 2-16, 2-81
Front ParkinglTurn Signal
........ 6-57
Indicator
..................................... 2-78
Headlights (See “Headlights”-)
Low Coolant Warning
.............. 2-81
Malfunction Indicator
.... 2-83, 6-66
Operation
................................... 2-43
Reading
..................................... 2-57
Service Fuel Filter
.................... 2-80
Side Marker
.............................. 6-58
Rear
................................. 6-62, 6-63
Replacement Chart
.................. 6-98
Roof Marker
.............................. 6-60
Tailgate Marker
......................... 6-60
Underhood Reel Lamp
............ 2-58
Loading Your Vehicle
........ 4-26, 6-67
Truck-Camper
............................ 6-70
Lubrication
..................................... 6-52
Accelerator Control System
.... 6-52
Body ........................................... 6-53
Constant Velocity Joints
......... 6-53
Front Axle
................................. 6-40
Front Shock Absorbers
........... 6-51
Front Suspension and Steering Linkage
................... 6-51
Service Engine Soon
..... 2-83, 6-66
9-4
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