heater GMC SAVANA 1997 User Guide

If No Steam Is Coming From Your Engine
If you get the overheat warning but see or hear no
steam, the problem may not be too serious. Sometimes
the engine can get a little too hot when you:
0 Climb a long hill on a hot day.
0 Stop after high-speed driving.
0 Idle for long periods in traffic.
Tow a trailer. See “Driving on Grades” in the Index.
If you get the overheat warning with no sign of steam,
try this for a minute or
so:
1. If you have an air conditioner, turn it off.
2. Turn on your heater to full hot at the highest fan
3. If you’re in a traffic jam, shift to NEUTRAL (N);
otherwise, shift to
the highest gear while
driving
-- AUTOMATIC OVERDRIVE (a)
or DRIVE (D). speed and
open the window as necessary. If you no
longer have the overheat warning, you can
drive. Just to be safe, drive slower for about 10 minutes.
If
the warning doesn’t come back on, you can
drive normally.
If the warning continues, pull over, stop, and park your
vehicle right away.
If there’s still no sign of steam, you can idle the engine
for two or three minutes while you’re parked, to push
the accelerator until the engine speed is about twice as
fast as normal idle speed. Bring the engine speed back
to normal idle speed after two or three minutes. Now
see if the warning stops. But then, if you still have the
warning,
turn ofithe engine and get everyone out of
the vehicle until it cools down.
You may decide not to lift the hood but to get service
help right away.
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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 engine
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 a11 coolant. That could
cause an engine fire, and
you could be burned.
Get any leak fixed before
you drive the vehicle.
NOTICE:
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.
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How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t at the
FULL COLD mark, add a 50/50 mixture of
clean water (preferably distilled) and DEX-COOL@
(silicate-free) antifreeze
at the coolant recovery tank. (See
“Engine Coolant” in the Index for more information.)
Adding only plain
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.
CAUTION: (Continued) JAUTION:
(Continu
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@ coolant.
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.
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NOTICE:
When adding coolant, it is important that you
use only
DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL@ 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. Damage caused by the
use of coolant other than DEX-COOL@
is not
covered by your new vehicle warranty.
What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half
DEX-COOL@ coolant which
won’t damage aluminum parts.
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@ coolant.
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NOTICE:
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 yo bur engine is cold, the coolant level sho
FULL COLD, or a little higher. uld
be at
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Engine Compartment Fuse Relay Center
The fuse block is on the driver's side of the engine
compartment at the rear.
[-I
[)
[T]
Name
BLOWER
ABS
Circuits Protected
Blower Motor
Electronic Brake Control Module
Name
IGN-B
IGN-A
BATT
LIGHTING
RR BLOWER
ENG-
1
A/C SPARE
AUX A
AUX-B
RH-HDLP
Circuits Protected
Ignition Switch
Starter Relay, Ignition Switch
Instrument Panel Fuse Block
Instrument Panel Fuse Block,
Headlamp Switch
Rear Auxiliary Blower
Motor Relays
Heated
02 Sensors, Mass Air
Flow Sensor, EGR Valve
Solenoid, Evap Canister Purge
Valve, Crankshaft Position Sensor,
Secondary Air Injection Relay
(Diesel), Water in Fuel Sensor
(Diesel), Fuel Heater (Diesel),
Glowplug Relay (Diesel),
Wastegate Solenoid (Diesel)
Air Conditioning Clutch Relay
Spare Fuses
Upfitter Provisions
Upfitter Provisions
Right-hand Headlamp
(Export Only)
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Engine Identification -- Gasoline Engines
Engine “VORTEC”4300 “VORTEC”5000
Type V6 V8
VIN Code
w M
Fuel System CSFI’ CSFI*
]Central
Sequential Fuel Injection
2Sequential Fuel Injection
Wheel Nut Torque
MODEL TORQUE
All 140 ft-lb (190 N-m)
Cooling System Capacity
ENGINE VIN
“VORTEC”4300
“VORTEC”5000
“VORTEC”5700
“VORTEC”7400 W
M
R
J
QTJ “VORTEC”5700
V8
R
CSFI’
1 Without Rear Heater*
11
Quarts (10.4 L)
17 Quarts (16 L)
17 Quarts (16 L)
23 Quarts (2 1.8 L)
“VORTEC”7400
V8
J
SF12
rl With Rear Heater 8
14 Quarts (13.2 L)
20 Quarts (18.9 L)
20 Quarts (18.9 L)
26 Quarts (24.6 L)
After refill, the level MUST be checked as outlined under “Engine Cooling System” in Section 5.
*All quantities are approximate.
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Part 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.
Proper procedures to perform these services may be
found in a GM 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.
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Halogen Bulbs ................................ 6-32 .
Hazard Warning Flashers .......................... 5-2
Head Restraints
................................. 1-5
Headlamps .................................... 2-39
Bulb Replacement
............................ 6-33
High/Low Beam Changer
...................... 2-34
OnReminder
................................ 2-40
Wiring
..................................... 6-59
Hearing Impaired. Customer Assistance
.............. 8-4
Heating
........................................ 3-7
High-Beam Headlamps
.......................... 2-34
Highway Hypnosis
.............................. 4-22
Hill and Mountain Roads
......................... 4-22
Hitches. Trailer
................................. 4-33
Hood
Checking Things Under
......................... 6-7
Prop
........................................ 6-8
Release
...................................... 6-7
Horn ......................................... 2-32
Hydroplaning
.................................. 4-18
Ignition Switch
................................ 2- 16
Ignition Transmission Lock Check
................. 7-47
Inflation. Tire
.................................. 6-42
Inside Daymight Rearview Mirror
................. 2-43
Inspections
.................................... 7-49
Brakesystem
................................ 7-50
Exhaust Systems
............................. 7-49
Radiator and Heater Hose
...................... 7-49
RearAxle
................................... 7-50 Steering
.................................... 7-49
Suspension
.................................. 7-49
Throttle Linkage
.............................. 7-49
Brightness Control
............................ 2-38
Cleaning
.................................... 6-52
Cluster ..................................... 2-48
FuseBlock
.................................. 6-60
Interior Lamps ................................. 2-40
.................................... J ack. Tire 5-25
Jump Starting
................................... 5-3
Keyless Entry System
........................... 2-6
Keys
.......................................... 2-2
Labels 4-27
Certification
................................. 4-27
CertificationEire
............................. 4-27
Service Parts Identification
..................... 6-58
Tire-Loading Information
...................... 4-27
Vehicle Identification Number
................... 6-58
Lamps
........................................ 2-38
Dome
...................................... 2-40
Interior
..................................... 2-40
OnReminder
................................ 2-40
Panel
....................................... 2-40
Underhood
.................................. 2-42
Leaving
Your Vehicle with the Engine Running ....... 2-26
Lighter ....................................... 2-45
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