engine GMC SAVANA 2008 Owner's Manual

Vehicle Identication
Vehicle Identication Number (VIN)
This is the legal identifier for your vehicle. It appears on
a plate in the front corner of the instrument panel, on
the driver side. You can see it if you look through the
windshield from outside your vehicle. The VIN also
appears on the Certification/Tire and Service Parts
labels and the certificates of title and registration.
Engine Identication
The eighth character in the VIN is the engine code.
This code helps you identify your vehicle’s engine,
specifications, and replacement parts. SeeCapacities
and Specifications on page 5-110for your vehicle’s
engine code.
Service Parts Identication Label
This label is on the front passenger door frame. It is very
helpful if you ever need to order parts. The label has the
following information:
•Vehicle Identification Number (VIN)
•Model designation
•Paint information
•Production options and special equipment
Do not remove this label from the vehicle.
Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to your
vehicle unless you check with your dealer/retailer
rst. Some electrical equipment can damage your
vehicle and the damage would not be covered by
your warranty. Some add-on electrical equipment can
keep other components from working as they should.
Add-on equipment can drain your vehicle’s battery, even
if your vehicle is not operating.
Your vehicle has an airbag system. Before attempting to
add anything electrical to your vehicle, seeServicing
Your Airbag-Equipped Vehicle on page 1-73.
5-103

Headlamp Wiring
The headlamp wiring is protected by fuses in the engine
compartment fuse block. An electrical overload will
cause the lamps to flicker on and off, or in some cases to
remain off. If this happens, have your headlamp wiring
checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by a circuit
breaker and a fuse. If the motor overheats due to heavy
snow, etc., the wiper will stop until the motor cools.
Although the circuit is protected from electrical overload,
overload due to heavy snow, etc., may cause wiper
linkage damage. Always clear ice and heavy snow from
the windshield before using the windshield wipers. If the
overload is caused by some electrical problem and not
snow, etc., be sure to get it fixed.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses and circuit
breakers. This greatly reduces the chance of fires
caused by electrical problems.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical size
and rating.
Floor Console Fuse Block
The floor console fuse block is located under the
driver seat.
5-104

Fuse Usage
23 Empty
24 Empty
25 Cargo Door Unlock
26 Rear Door Lock
27 Front Door Lock
28 Rear Passenger Door Unlock
29 Upfitter Park Lamps
30 Front Passenger Door Unlock
31 Driver Door Unlock
32Airbag System, Automatic Occupant
Sensing (AOS) System
33 Right Rear Park Lamp
34 Left Rear Park Lamp
35 Upfitter Auxiliary 2 (J-Case)
36 Upfitter Auxiliary 1 (J-Case)
37 Rear Blower (J-Case)
38 Empty (J-Case)Relays Usage
39 Run (High Current Micro)
40 Park Lamps (High Current Micro)
41 Empty (Mini Micro)
42Upfitter Auxiliary 2 (High Current
ISO Relay)
43Retained Accessory Power (RAP)
(High Current Micro)
44 Rear Defogger (High Current Micro)
Circuit Breaker Usage
45 Power Window
46 Power Seats
Engine Compartment Fuse Block
The fuse block is located in the engine compartment on
the driver side of the vehicle.
Notice:Spilling liquid on any electrical components
on your vehicle may damage it. Always keep the
covers on any electrical component.
5-106

Fuse Usage
9 Right Low-Beam Headlamp
10 Daytime Running Lamps 2 (DRL)
11Fuel System Control Module
Ignition (Gas)
12 Daytime Running Lamps 1 (DRL)
13 Auxiliary Stoplamp
14Fuel Operated Heater Module
(Diesel)
15Fuel System Control Module
Battery (Gas)
16 Left Stoplamp, Trailer Turn Signal
17 Canister Vent Solenoid (Gas)
18 Empty
19 Empty
20 Body Control Module 1
21 Special Equipment Option (SEO)
22 Body Control Module 4
23 Body Control Module 6
24 Empty
25 Body Control Module 7
26 Body Control Module 3
27 Body Control Module 5
28 Empty
29 EmptyFuse Usage
30 Instrument Panel Cluster
31 Empty
32 Brake Switch
33 Auxiliary Power Outlet
34 Airbag
35 Trailer Wiring
36 Steering Wheel Sensor (Gas)
37 Body Control Module 2
38Cigarette Lighter, Data Link
Controller
39 Windshield Wiper
40 Empty
41 Windshield Washer
42 Empty
43 Horn
44Transmission Control Module
Battery
45 Empty
46 Oxygen Sensor 1 (Gas)
47Transmission Control Module
Ignition
48 Engine Control Module Ignition
49 Mass Airflow Sensor, Canister Vent
50 Engine Control Module, Powertrain
5-108

Fuse Usage
51 Transmission
52 Even Ignition Injectors (Gas)
53 Glow Plug Module (Diesel)
54 Engine Control Module Battery
55 Odd Ignition Injectors (Gas)
56 Oxygen Sensor 2 (Gas)
57 Air Conditioning Compressor
58 Fan Clutch (Diesel)
59 V6 Fuel Injectors (Gas)
60Antilock Brake System Module
(J-Case)
61Antilock Brake System Motor
(J-Case)
62 Trailer Wiring (J-Case)
63 Empty
64 Starter Solenoid (J-Case)
65Engine Control Module (ECM),
Powertrain (Diesel) (J-Case)
66 Front Blower (J-Case)
67 Empty
77 Body BEC (Mega Fuse)Relays Usage
68 Empty
69 Run, Crank (High Current Micro)
70Windshield Wiper High
(High Current Micro)
71Windshield Wiper (High Current
Micro)
72 Fuel Pump (Mini Micro)
73 Crank (High Current Micro)
74Air Conditioning Compressor
(Mini Micro)
75 Fan Clutch (Diesel) (Solid State)
76 Powertrain (High Current Micro)
5-109

Capacities and Specications
If your vehicle has the DURAMAX®Diesel engine, see the DURAMAX®Diesel manual for more information.
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-14for more information. When adding, be sure to fill to the appropriate level or as recommended
in this manual.
See refrigerant charge label under the hood for charge capacity information and requirements.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134aFor the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer/retailer for more
information.
Cooling System
4300 V6 11.0 qt 10.4 L
4800 V8, 5300 V8 13.4 qt 12.7 L
6000 V8 14.8 qt 14.0 L
Cooling System with Rear Heat
4300 V6 14.0 qt 13.2 L
4800 V8, 5300 V8 16.4 qt 15.5 L
6000 V8 17.8 qt 17.0 L
Engine Oil with Filter
4300 V6 4.5 qt 4.3 L
4800 V8, 5300 V8, 6000 V8 6.0 qt 5.7 L
5-110

ApplicationCapacities
English Metric
Fuel Tank
Standard Tank (Passenger and Cargo) 31.0 gal 117.3 L
Standard Tank (Cab and Chassis) 33.0 gal 124.9 L
Optional Tank (Cab and Chassis)* 57.0 gal 215.7 L
* 159 inch (4 039 mm) wheelbase or 177 inch (4 496 mm) wheelbase only
Transmission Capacities
4-SPD 4L60-E Transmission 5.0 qt 4.7 L
4-SPD 4L80-E 7.7 qt 7.3 L
4-SPD 4L80-E Heavy Duty Transmission 7.7 qt 7.3 L
Wheel Nut Torque 140 ft lb 190Y
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
Engine Specications
Engine VIN Code Transmission Spark Plug Gap
VORTEC™ 4300 V6 X Automatic 0.060 inches (1.52 mm)
VORTEC™ 4800 V8 C Automatic 0.040 inches (1.01 mm)
VORTEC™ 5300 V8 4 Automatic 0.040 inches (1.01 mm)
VORTEC™ 6000 V8 K Automatic 0.040 inches (1.01 mm)
5-111

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Maintenance Requirements..............................6-2
Your Vehicle and the Environment....................6-2
Using the Maintenance Schedule......................6-3
Scheduled Maintenance...................................6-4
Additional Required Services
(Gasoline Engine).......................................6-6
Maintenance Footnotes (Gasoline Engine)..........6-8
Owner Checks and Services..........................6-10At the First 100, 1,000 and 6,000 Miles
(160, 1 600 and 10 000 km)..........................6-10
At Each Fuel Fill..........................................6-10
At Least Once a Month.................................6-11
At Least Once a Year...................................6-11
Recommended Fluids and Lubricants...............6-14
Maintenance Replacement Parts.....................6-16
Engine Drive Belt Routing..............................6-17
Maintenance Record.....................................6-18
Section 6 Maintenance Schedule
6-1

Maintenance Schedule
Introduction
This maintenance section applies to vehicles with a
gasoline engine. If your vehicle has a diesel engine,
see the maintenance schedule section in the
DURAMAX
®Diesel manual.
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties. See your
Warranty and Owner Assistance booklet or your
dealer/retailer for details.
Maintenance Requirements
Notice:Maintenance intervals, checks, inspections,
replacement parts, and recommended uids and
lubricants as prescribed in this manual are necessary
to keep your vehicle in good working condition.
Any damage caused by failure to follow scheduled
maintenance might not be covered by warranty.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep
your vehicle in good working condition, but also helps
the environment. All recommended maintenance is
important. Improper vehicle maintenance can even affect
the quality of the air we breathe. Improper fluid levels or
the wrong tire inflation can increase the level of emissions
from your vehicle. To help protect our environment, and
to keep your vehicle in good condition, be sure to
maintain your vehicle properly.
6-2

Using the Maintenance Schedule
We want to help you keep your vehicle in good working
condition. But we do not know exactly how you will
drive it. You might drive very short distances only a few
times a week. Or you might drive long distances all
the time in very hot, dusty weather. You might use your
vehicle in making deliveries. Or you might drive it to
work, to do errands, or in many other ways.
Because of all the different ways people use their
vehicles, maintenance needs vary. You might need more
frequent checks and replacements. So please read
the following and note how you drive. If you have any
questions on how to keep your vehicle in good condition,
see your dealer/retailer.
This schedule is for vehicles that:
•carry passengers and cargo within recommended
limits. You will find these limits on the Tire and
Loading Information label. SeeLoading Your
Vehicle on page 4-20.
•are driven on reasonable road surfaces within legal
driving limits.
•use the recommended fuel. SeeGasoline Octane
on page 5-6.The services inScheduled Maintenance on page 6-4
should be performed when indicated. SeeAdditional
Required Services (Gasoline Engine) on page 6-6and
Maintenance Footnotes (Gasoline Engine) on page 6-8
for further information.
{CAUTION:
Performing maintenance work on a vehicle can
be dangerous. In trying to do some jobs, you
can be seriously injured. Do your own
maintenance work only if you have the
required know-how and the proper tools and
equipment for the job. If you have any doubt,
see your dealer/retailer to have a qualied
technician do the work. SeeDoing Your Own
Service Work on page 5-4.
Some maintenance services can be complex.
So, unless you are technically qualified and have
the necessary equipment, you should have your
dealer/retailer do these jobs.
When you go to your dealer/retailer for your service
needs, you will know that trained and supported service
technicians will perform the work using genuine parts.
6-3