1997 GMC JIMMY heater

Engine Coolant
The cooling s stem in your vehicle is filled with
DEX-COOL engine coolant. This coolant is designed
to remain in your vehicle
for 5 years or 150,000 miles
(240 000 km) whichever occurs first, if you add only
DEX-COOL’ extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating, see “Engine Overheating” in
the Index.
A 50/50 mixture of water and the DEX-COOL@ coolant
for your vehicle will:
Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265 OF ( 129 O C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
8
they should.
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.
6-23

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.
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:
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.
6-24

Fuse/Circuit Breaker Usage
5
6
7
8
9
10
11
12
13
14
1s
Oxygen Sensor Heater, Exhaust Gas
Recirculation, Cam Sensor, CANN.
Purge. Canister Vent Solenoid. Mass
Airflow Sensor,
Cam Shaft Sensor
Blower Motor, Temperature Door Motor.
HI Blower Relay Coil
Power Auxiliary Outlets, Assembly
Line Diagnostic
Link
Rear Window Defogger
PCM/VCM Battery. Fuel Pump
PCM/VCM Ignition, Injectors. Crank
Sensor. Coil Driver Module
Radio, Inside Rearview Mirror Map
Lamp, Overhead Console Reading
Lamps. Rear Wiper, Rear Washer.
Overhead Console Display
Anti-Lock Braking System. VCM
IGN-3
Clock. Radio Battery, CD Player
A/C Compressor Battery Feed
Daytime Running Lamps, Fog
Lamps,
Fog Lamp Relay
17
18
19
20
21
22
23
Fuse/Circuit
Breaker Usage
16 Turn Signals and Back-up Lamps,
Brake-Transmission Shift Interlock
Solenoid
Windshield Washer, Windshield Wiper Motor
Not Used
Electric Shift Transfer Case
Crank Relay,
Air Bag Module
Not Used
Air Bag Module
Cluster Hlumination, Radio
Illu~nination. He.ater Lamp.
4WD
Illumination, Chime Module, Fog
Lam13 Illumination, Rear Wiper
Switch Illumination, Rear Defogger
Switch Illumination, Liftglass
Release Switch Illumination,
Overhead Console Illutnination
PRNDL Power. 4L60E Automatic
Transmission
24
6-61

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 nnanual. See "Service and Owner
Publications"
in the Index.
Steering, Suspension and Front Drive Axle
Boot
and Seal 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. Clean and then inspect the drive
axle boot seals for damage, tears or leakage. Replace
seals
if necessary.
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
excessi\.e wear.
Do not lubricate accelerator and cruise
control cables.
7-50

Clock . Setting ................................... 3-6
Clutch. Hydraulic
............................... 6- 19
Comfort Controls ................................ 3- I
Compact Disc Care ............................. 3-2 I
Compact Spare Tire 3-33
Control of a Vehicle .............................. 4-6
Convenience Net
............................... 2-57
Convex Outside Mirror
.......................... 2-50
Coolant ................................... 5- 14.6-23
Coolant Heater. Engine
.......................... 2- I7
Cruise Control ................................. 2-42
Customer Assistance Information
................... 8- I
Customer Satisfaction Procecture .................... 8-2
.. .............................
Courtesy Transportation ........................... 8-8
Damage
. Finish ............................... 6-56
Damage. Sheet Metal
............................ 6-55
Daytime Running Lamps Indicator Light ............ 2-80
Dead Battery
................................... 5-3
Defects. Reporting Safety ................... X- IO. 8- 1 1
Defensive Driving ............................... 3-2
Defogging ..................................... 3-5
Defrosting ..................................... 3-5
Dimensions . Vehicle ............................ 6-64
Dome Latmps
.................................. - 3-48
Door
Locks
....................................... 2-3
Storage ..................................... 2-56
Drive. Automatic Transmission
.................... 2-20
Daytime Running Lamps ......................... 2-36 Drive
Axlc Service ... ........................ 7-51
Driver Position
.................................
City ........................................ 4-32
Defensive
.................................... 4-2
Drunken
..................................... 4-3
Foreign Countries
.............................. 6-4
Guidelines
.................................. 4-14
Hill and Mountain Roads
....................... 4-35
In a Blizzard ................................. 4-39
Night
...................................... 4-28
Ofl-Road ................................... 4-15
On Curves ................................... 4-9
Rainy Conditions
............................. 3-29
Snowy and Icy Conditions ...................... 3-37
Through Deep Standing Water
................... 4-31
Wintet-
...................................... 4-37
With
a Trailer ................................ 4-50
Driving On Grades Whilc Towing :I Trailer ........... 3-52
Drunken Driving ................................ 3-3
F~KWLI~ .................................... 4-33
Wet Roads .................................. 1-29
Easy Entry scat ................................ 1-7
Electrical Equipmcnt
. Addin2 ................ 3-20, 6-58
Electrical System
............................... 6-58
Elnergency Releasc
........................... 2-11
EIldgate ....................................... 2-9
M;tIlLlal Rclc~~e
.............................. 2- IO
Re111ote Release .............................. 2-11
9-3

Engine ........................................ 6-8
Coolant Heater
............................... 2-17
Coolant Level Check
.......................... 7-46
Coolant Temperature Gage
..................... 2-76
Fan Noise
................................... 5-22
Exhaust
..................................... 2-34
Identification
................................ 6-58
OilLevelCheck
............................... 7-46
Overheating
................................. 5-12
Specifications
................................ 6-63
Running While Parked
......................... 2-35
Starting
..................................... 2-15
Engine Oil
..................................... 6-9
Additives
................................... 6- 12
Checlung
.................................... 6-9
Pressure Gage
................................ 2-79
When to Change
.............................. 6-12
Express-Down Window
.......................... 2-36
Exterior Metal Parts, Protecting
.................... 6-55
Adding
..................................... 6-10
Kindtouse
................................. 6-10
Used
....................................... 6-13
Exhaust, Engine
................................ 2-34
Fabric Cleaning
............................... 6-50
Fifth Gear, Manual Transmission
................... 2-21
FillingYourTank
................................ 6-5
Filter
Air ........................................ 6-13
Remote Oil
.................................. 6-12 Finishcare
. ............................i...... 6-54
First Gear Finish Damage
................................. 6-56
Automatic Transmission
....................... 2-20
Flashers, Hazard Warning
......................... 5-2
Flat Tire, Changing
............................. 5-23
Fluids and Lubricants
....................... 6-64, 7-52
Fog Lamp Switch ............................... 2-47
Foreign Countries, Fuel
........................... 6-4
Fourth Gear, Manual Transmission
................. 2-21
Four-wheel Drive
......................... 2-23, 6-21
Front Map Lamps
............................... 2-48
Front Reading
Lamps .................. 2-47,2-51, 6-38
Front Sidemarker Lamp Bulb Replacement
........... 6-36
FrontStorageArea
.............................. 2-56
ManualTransmission
.......................... 2-21
French Language Manual
u
FrontAxle .................................... 6-22
.. ...........................
FrontTowing .................................. 5-10
Front Turn Signal Lamp Bulb Replacement
.......... 6-36
Fuel
.......................................... 6-3
Filling Your
Tank .............................. 6-5
Foreign Countries
.............................. 6-4
Fuses and Circuit Breakers
....................... 6-59
Gage
....................................... 2-81
bages Engine Coolant TemDerature
.................... 2-76 v L
Engine Oil Pressure ........................... 2-79
Fuel
....................................... 2-81
9-4 b