1996 CHEVROLET S10 Heater

Downloaded from www.Manualslib.com manuals search engine The coolant level should be at the ADD mark. If it
‘ isn’t, you may have a leak in the radiator hoses, heater
hoses, radiator, water pump
or somewhere else in the
cooling system.
A CAUTION:
Heater and radiator hoses, and other e Jne
parts, can be very hot. Don’t touch them.
If you
do, you can be burned.
Don’t run the engine if there is a leak.
If you run
the engine, it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
I NOTICE:
I
Engine damage from running your engine
without coolant isn’t covered by your warranty.
If there seems to be no leak, start the engine again. See
if the fan speed increases when idle speed is doubled by
pushing the accelerator pedal down.
If it doesn’t, your
vehicle needs service. Turn off the engine.
5-14

Downloaded from www.Manualslib.com manuals search engine How to Add Coolant to the
Coolant Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t at
ADD, add a 50/50 mixture of clean water
(preferably distilled) and DEX-COOL TM (orange-colored,
silicate-free) antifreeze at the coolant recovery tank. (See
“Engine Coolant” in the Index for more information.)
k!, CAUTICJ:
Adding only plain. water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system
is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you
or
others could be burned. Use a 5W50 mix of clean
water and
DEX-COOL TM antifreeze.
I NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mix.

Downloaded from www.Manualslib.com manuals search engine A 50/50 mixture of water and the proper coolant for
your vehicle will:
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 “F ( 129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
0 Let the warning lights and gages work as
they should.
NOTICE:
~~ ~~~~ ~ ~~
When adding coolant it is important that you use
DEX-COOL (orange-colored, silicate-free)
coolant meeting GM Specification 6277M.
If silicated coolant is added to the system,
premature engine, heater core or radiator
corrosion may result. In addition, the engine
coolant
will require change sooner -- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. What to
Use
Use a mixture of one-half
clean water (preferably
distilled) and one-half DEX-COOL (orange-colored,
silicate-free) antifreeze that meets GM Specification
6277M’ which won’t damage aluminum parts. Use
GM Engine Coolant Supplement (sealer) (GM Part
No. 3634621) with any complete coolant change. If you
use this mixture, you don’t need to add anything else.
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use
a 50/50 mix of clean
water and
DEX-COOL (orange-colored,
silicate-free) antifreeze.
6-25

Downloaded from www.Manualslib.com manuals search engine NOTICE:
r
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The
repair
cost wouldn’t be covered by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
I NOTICE: I
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
Checking Coolant
When your engine is cold, the coolant level should be at
ADD, or a little higher. When your engine is warm, the
level should be
LID to FULL HOT, or a little higher.
6-26

Downloaded from www.Manualslib.com manuals search engine FuseKircuit Usage Breaker
A
B
1
Power Door Locks, Power Seat, Power
Seat Lumbar, Remote Keyless Entry
Power Windows
Stoplamps, Hazard Lamps, Chime,
Center High-Mounted Stoplamp Relay,
Center High-Mounted Stoplamp
3
4
5
6
FuseKircuit Usage
Breaker
2 Dome Lamps, Visor Vanity Mirror,
Cigarette Lighter, Inside Rearview
Mirror Lamp, Overhead Console
Lamps, Glove
Box Lamp, Horns, Horn
Relay, IP Courtesy Lamps, Power
Outside Rearview Mirror, Illuminated
Entry Module
Parking Lamps, License Plate Lamps,
Electric Shift Transfer Case Module,
Underhood Lamp, Ashtray Lamp,
Door Switch Lamp
Alternator Field, A/C Compressor
Relay, Cluster Chime Module, DRL
Relay Coil, Four-Wheel-Drive
Indicator Lamp, DRL Module,
Transfer Case Control Module Ignition, SIR Redundant Ignition,
RKE Ignition
Oxygen Sensor Heater, Exhaust Gas
Recirculation, Cam Sensor, CANN.
Purge, MAS
Blower Motor, Temperature Door
Motor,
HI Blower Relay Coil
6-64

Downloaded from www.Manualslib.com manuals search engine Fuse/Circuit Usage Breaker
7 Power Auxiliary Outlets, Assembly
Line Diagnostic Link
8
9
10
11
12
13
14
15
Not Used
PCMNCM Battery,
ABS Battery, Fuel
Pump (LN2)
PCM/VCM Ignition, Injectors, Crank
Sensor, Coil Driver Module
Radio, Inside Rearview Mirror
Map Lamp
DRAC, Anti-Lock Braking System,
Clock, Radio, Battery,
CD Player
VCM
IGN-3
A/C Compressor Battery Feed
Daytime Running Lamps,
Fog Lamps,
Fog Lamp Relay
Fuse/Circuit Usage Breaker
16
17
19
20 21
22
24 Turn
Signals and Back-up
Lamps, Brake-Transmission
Shift Interlock Solenoid
Windshield Washer, Windshield Wiper Motor
Electric Shift Transfer Case
Crank Signal, Air Bag System
Cluster Illumination,
Radio Illumination, Heater
Lamp, Four- Wheel-Drive
Illumination, Chime Module,
Fog Lamp Illumination
Air Bag System
PRNDL Power, 4L60E Automatic
Transmission
6-65

Downloaded from www.Manualslib.com manuals search engine Part C: Periodic Maintenance
Inspections
Listed below are inspections and services which should
be perfowed 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.
Proper procedures to perform these services may be
found in a service manual. See “Service and Owner
Publications’’ in the Index.
Steering and Suspension Inspection
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 hook-up, binding, leaks,
cracks, chafing, etc.
Exhaust System Inspection
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 “Engine Exhaust” in the Index.
Radiator and Heater Hose Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated; Inspect all pipes,
fittings and clamps; replace as needed.
Throttle Linkage Inspection
Inspect the throttle linkage for interference or binding,
and for damage or missing parts. Replace parts as
needed. Replace any cables that have high effort or
excessive wear.
Do not lubricate accelerator and cruise
control cables.
7-51

Downloaded from www.Manualslib.com manuals search engine Section 9 Index
Accessory Power Outlet ......................... 2-47
Adding Sound Equipment
........................ 3- 17
Add-on Equipment
............................. 4-44
AirBag
....................................... 1-18
Adding Equipment ............................ 1-24
How Does
it Restrain .......................... 1-21
How
it Works ................................ 1-20
Location
.................................... 1-20
Readiness Light
......................... 1-1 9. 2.54
Servicing
................................... 1-23
What Makes
it Inflate .......................... 1-2 I
What Will You See After it Inflates ............... 1-22
When Should
it Inflate ......................... 1-20
Aircleaner
............................... 6.14. 6.67
Air Conditioning/Heater Controls
................... 3-2
Air Conditioning Refrigerants
..................... 6-68
Alignment and Balance. Tire
...................... 6-50
Aluminum Wheels. Cleaning
...................... 6-58
Antenna. Fixed
................................. 3-18
Anti-Lock Brakes ............................... 4-6
Anti-Lock Brake System Warning Light
......... 2.56. 4.6
Appearancecare
............................... 6-52
Appearance Care Materials
....................... 6-60
Arbitration Program
.............................. 8-7
Armrest. Storage ............................... 2-45
Ashtrays
...................................... 2-46
Audio Systems
.................................. 3-5
Automatic Overdrive
............................ 2-16
Automatic Transmission
Check
...................................... 7-48
Fluid ................................... 6-16. 6-68
Operation
................................... 2-14
Park Mechanism Check
........................ 7-50
Shifting
..................................... 2-14
Front
....................................... 6-23
Rear
.................................. 2.19. 6.21
Axle
Battery
...................................... 6-35
Jump Starting ................................. 5-2
Replacement. Keyless Entry
..................... 2-5
Warnings
.................................... 5-2
BBB Auto Line
................................. 8-7
Better Business Bureau Mediation ................... 8-7
BrakeFluid .................................... 6-31
Brake. Parking
................................. 2-25
Brake System Warning Light
...................... 2-55
ChargeLight
................................ 2-54
9-1