1994 GMC SIERRA check engine light

To Jump Start Your Vehicle
1. Check the other vehicle. It must have a 12-volt battery with a negative
ground system.
I NOTICE:
If the other system isn’t a 12-volt system with a negative
ground, both vehicles can be damaged.
If you have a diesel engine vehicle with two batteries (or more), you
should know before
you begin that, especially in cold weather, you may
not be able to get enough power from
a single battery in another
vehicle to start your diesel engine.
If your vehicle
has more than one battery, use the battery that’s on the
passenger side
of the vehicle - this will reduce electrical resistance.
sure the vehicle’s aren’t touching each other.
If they are, it could cause
a ground connection you don’t want. You wouldn’t be able to start your
vehicle, and the bad grounding could damage
the electrical systems.
You could be injured
if the vehicles roll. Set the parking brake firmly
on each vehicle. Put an automatic transmission
in “P” (Park) or a
manual transmission in “N” (Neutral). If you have a four-wheel-drive
vehicle, be sure
the transfer case is not in “N” (Neutral).
2. Get the vehicles
close enough
so the jumper cables can reach, but be
3. Turn off the ignition on both vehicles. Turn off all lights that aren’t
needed, and radios. This will avoid sparks and help save both batteries.
And it could save
your radio!
NOTICE:
If you leave your radio on, it could be badly damaged. The
repairs wouldn’t be covered by your warranty.
4. Open the hoods and locate the batteries. Find the positive (+) and
negative
(-) terminals on each battery.
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Cold Weather Operation
In cold weather (below 20”F, or -7”C), use 1-D or “Winterized” Number
2-D fuel (a blend of I-D and 2-D). Be sure you get the right fuel. In very
cold temperatures (when
it stays below 0°F or -1 8OC), use Number 1-D.
If you’re driving in very cold temperatures and can’t get Number I-D or a
“winterized” Number
2-D, you can use one gallon of kerosene for every
two gallons
of diesel fuel. Once you add the kerosene, run your engine for
several minutes
so the fuels will mix. Add kerosene only when the
temperature falls below
0°F (-1 8” C), because the fuel economy of kerosene
isn’t
as good as that of diesel fuel.
NOTICE:
Never use home heating oil or gasoline in your diesel engine.
They can cause engine damage.
In cold weather, your fuel filter may become clogged (waxed), especially if
you use Number
2-D diesel fuel that hasn’t been “winterized.” To unclog it,
warm the filter to between 32°F and 50°F (0°C to 10°C). You won’t need
to replace
it.
Water in Fuel
Sometimes, water can be pumped into your fuel tank along with your diesel
fuel. This can happen
if a service station doesn’t regularly inspect and clean
its
fuel tanks, or if it gets contaminated fuel from its suppliers.
If this happens,
a “WATER IN FUEL” light will come on. If it does, the
excess water must be drained. Your dealer can do this
for you.
This light also should
come on briefly when
you start your engine,
as a check. If it
doesn’t, have it fixed
so it will be there to
let you know if you
ever
do get water in
your fuel.
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If the light comes on at any other time, use this chart.
“Water in Fuel” Light Chart
Problem
Light comes on intermittently.
Light stays on:
1. At temperatures above
freezing.
2. At temperatures below
freezing.
Recommended Action
Drain water from fuel filter.
Drain fuel filter immediately. If no
water
can be drained and light stays
on, see your dealer for assistance.
Drain fuel filter immediately. If no
water can be drained
- water may
be frozen. Open the air bleed valve
to check
for fuel pressure. If no fuel
pressure is present, replace the
fuel
filter.
3. Immediately after refueling - Fuel tank purging required. See
large amount of water possibly your dealer for assistance.
pumped into fuel tank.
Hesitation or “flat” performance at high speed or during hard acceleration
may be an indication of premature fuel filter plugging due
to dirty or
contaminated fuel, The filter element may need to be changed
if this
happens. See your dealer for assistance.
NOTICE:
If you drive when this warning light is on, you can damage y\
our
fuel injection system and your engine. If the light comes on right
after you refuel,
it means water was pumped into your fuel tank.
Turn off your engine immediately. Then, have the water drained \
at once.
To drain water:
1. Stop and park the vehicle in a safe place. Turn off the engine and apply
the parking brake.
2. Remove the fuel tank cap.
3. Place a fuel-resistant container under the filter drain hose.
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To Check Coolant
When your engine is cold, the coolant level should be at the COLD mark,
or a little higher. When your engine is warm, the level should be above the
COLD mark.
If this light comes on,
it means you’re low
on engine coolant.
To Add Coolant
If you need more coolant, add the proper mix at the surge tnnk, but only
when the engine is cool.
Open the air bleed valve on the thermostat housing to allow trapped air
out
of the system. Close the bleed valve when coolant begins to flow out.
I A CAUTION:
nrning the surge tank pressure cap when the engine and
radiator are hot can allow steam and scalding liquids to blow
out:
and burn you badly. Never turn the surge tank pressure cap -
even a little - when the engine and radiator are hot.
A CAUTION:
You can be burned if you spill coolant on hot engine parts.
Coolant contains ethylene glycol, and it will burn if the engine
parts are hot enough. Don’t spill coolant on
a hot engine.
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Wheel Nut Torque
For vehicle with dual wheels, wnen the vehicle, wheel or Tasteners are new,
have the torque set at
the first 100, 1,000 and 6,000 miles (1 60, 1600 and
9600 km). Use the torque specified
in the appropriate Specification Chart
later
in this section.
Single Belt Accessory Drive
If your new vehicle uses a serpentine belt, it is lighter and more durable than
systems with several belts.
The belt runs over or around the pulleys on the engine.
A tensioner may be
used
to keep the belt tight at all times. The tensioner also makes replacing
the belt easier.
If you need to replace the belt, be sure to get the correct
replacement belt. Your dealership or parts supplier can help you with this.
The Accessory Drive belt Routing label on your vehicle will show
you how
to route
the belt your vehicle uses.
Windshield Wiper Blade Inserts
To replace the
windshield wiper
blade insert, lift the
wiper arm and rotate
the blade until
it is
facing away from the
windshield.
Unlatch
the end of the insert from the holding clips. Remove the insert and
slide a new
one in place. Make sure the blade is secured in the clips.
Air Conditioning
Every now and then have your dealership check your air conditioning
system
to be sure it has not lost any cooling ability. If you think the system
is not working properly, have your dealership check it out as soon as
possible.
The air conditioning
will not work when the temperature is below 40°F
(4°C).
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Heater or A/C Control Lamp
Four Wheel Drive Indicator
rour Wheel Drive Shift Lever
Instrument Panel Compartment Lamp
Ashtray Lamp
Sunshade Vanity Mirror
"Crew Cab Only
LAMP OR BULB
INSTRUMENT PANEL
Transmission Indicator (PRNDL)
Daytime Running Lights Indicatory
Charging System Indicator Lamp
Instrument Cluster Illumination
--Gage Cluster
Instrument Cluster Illumination
-Tachometer Cluster
Headlamp Beam Indicator
Directional Signal Indicator
Brake Warning Indicator
Safety Belt Warning
Check Gages Indicator
Malfunction Indicator ("Service
Engine Soon") Lamp
Upshift Indicator
Glow Plugs Lamp*:$:
Low Coolant
Water
in Fuel Lamp*'$
Service Throttle Soon Lamp*"
194
161
194
194
I94 74
TRADE NO.
161
74
74
I94
I94 74 74
74
74 74
74
74
74
74
74
74
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Scheduled Maintenance Services
Section
This section covers the maintenance required for your General Motors
vehicle
. Your vehicle needs these services to retain it’s safety. dep\
endability.
and emission control performance
.
A Word About Maintenance .................................. 7-3
Your Vehicle and the Environment
............................. 7-3
Recording Maintenance Services
............................... 7-3
Scheduled Maintenance Services
............................... 7-4
Selecting Your Vehicle’s Maintenance Services
................. 7-4
Gasoline Engines with Light Duty Emissions
-
MaintenanceScheduleI ................................ 7-6
MaintenanceScheduleII
................................ 7-8
Maintenance Schedule I
............................... 7-10
Maintenance Schedule I1
............................. 7-12
Maintenance Schedule I
............................... 7-14
Maintenance Schedule
11 ............................... 7-16
Explanation of Scheduled Maintenance Services
............... 7-18
Owner Checks and Services
.................................. 7-22
Recommended Fluids
& Lubricants ........................... 7-25
Maintenance Record
....................................... 7-27
Service Station Checks
.... ., ................................ 7-28
Gasoline Engines with Heavy Duty Emissions
-
Diesel Engines .
Have you purchased the GM Protection Plan? The Plan supplements
the new vehicle warranties
. See your GM dealer for details .
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F
FanNoise ...................................................... 5-25
Filter Replacement Chart
.......................................... 6-94
Finish Care
........................................................ 6-85
Damage
..................................................... 6-86
Automatic Transmission
........................................ 6-30
Brake
....................................................... 647
Coolant
..................................................... 5-17
Capacities .............................................. 6-92, 6-93
FrontAxle
................................................... 6-37
Hydraulicclutch
.............................................. 6-35
LeakCheck
............................................. 6-47. 6-51
ManualTransmission .......................................... 6-33
Power Steering
............................................... 6-43
Radiator
..................................................... 5-17
Rear Axle ................................................... 6-39
Recommended Fluids
.......................................... 7-25
Transfer Case
................................................ 6-36
Windshield Washer
............................................ 6-45
Four-WheelDrive ............................................... 244
Transfer Case
........................................... 2-35, 6-36
Front Axle ................................................... 6-37
Fuel (Diesel Engines)
............................................. 6-11
Cold Weather Operation ......................................... 6-6
Filter Replacement ............................................ 6-11
Fuel Requirements ............................................. 6-4
Gage
....................................................... 2-78
RunningOutOf
.............................................. 6-10
Tankcapacity ................................................ 6-93
WaterinFuel
................................................. 2-71
Fuel (Gasoline Engines)
............................................ 6-4
FillingYourTank
............................................. 6-13
Foreign Countries
............................................. 6-12
Gage
....................................................... 2-78
Gasolines for Cleaner Air
........................................ 6-5
Tankcapacity
................................................ 6-93
Fuses and Circuit Breakers
................................... 6-64. 6-96
FuseBlock ............................................. 6-63, 6-95
Headlights
.............................................. 6-62-6-97
Trailer Wiring Harness
......................................... 6-62
Windshield Wipers
....................................... 6-45, 6-96
Fluid
Power Windows and Other
Power Options ......................... 6-62
Gages ......................................................... 2-78
Coolant Temperature Gage
...................................... 2-79
FuelGage
................................................... 2-78
Odometer
................................................... 2-68
Oil Pressure Gage ............................................. 2-80
Speedometer
................................................. 2-68
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