1996 GMC SAVANA maintenance

The 1996 GMC Savana Owner’s Manual
Seats and Restraint Systems .............................................................
FeaturesandControls ..................................................................
Comfort Controls and Audio Systems .....................................................
This section tells you how to use your seats and safety belts\
properly. It also explains the “SIR’ system.
This section explains how to start and operate your vehicle.
This section tells you how to adjust the ventilation and comfo\
rt controls and how to operate your audio system.
YourDrivingandtheRoad ..............................................................
Here you’ll find helpful information and tips about the road\
and how to drive under different conditions.
ProblemsontheRoad ..................................................................
This section tells you what to do if you have a problem while driving, such as a flat tire or overheated
engine, etc.
ServiceandAppearanceCare ............................................................
Here the manual tells you how to keep your vehicle running pr\
operly and looking good.
Maintenanceschedule ..................................................................
This section tells you when to perform vehicle maintenance and \
what fluids and lubricants to use.
Customer Assistance Information ........................................................
This section tells you how to contact GMC Truck for assistance and how to get service and owner
publications.
It also gives you information on ”Reporting Safety Defects” on page 8-8.
Here‘s an alphabetical listing of almost every subject in this manual. You can use it to quickly find
something you want to read.
Index ........................................................................\
........
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2- 1
3-1
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5-1
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8- 1
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0 0 . Your vehicle is equipped with a crash sensing and
diagnostic module, which records information
about the air bag system. The module records
information about the readiness of the system, when
the sensors are activated and driver’s safety belt
usage
at deployment.
Let only qualified technicians work on your air bag
system. Improper service can mean that your air bag
system won’t work properly. See your dealer
for service.
NOTICE:
If you damage the cover for the driver’s or the
right front passenger’s
air bag, they may not
work properly.. You may have to replace the
air bag module in the steering wheel or both the
air bag module and the instrument panel for the
right front passenger’s
air bag. Do not open or
break the
air bag covers.
Servicing Yodr Air Bag-Equipped Vehicle
Air bags affect how your vehicle should be serviced.
There are
parts of the air bag system in several places
around your vehicle. You don’t want the system to
inflate while someone is working on your vehicle. Your
GM dealer and the service manual have information
about servicing your vehicle and the air bag system.
To
purchase a.service manual, see “Service and Owner
Publications” in the Index.
For up to 10 minutes after the ignition key is
turned
off and the battery is disconnected, an air
bag can still inflate during improper service. You
can be injured
if you are close to an air bag when
it inflates. Avoid wires wrapped with?yellow tape
or yellow connectors. They are probably part of
the
air bag system. Be sure to follow proper
service procedures, and make sure the person
performing work for you
is qualified to do so.
The air bag system does not need regular maintenance.
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Safety Belt Extender
If the vehicle’s safety belt will fasten around you, you
should use
it.
But if a safety belt isn’t long enough to fasten, your
dealer will order you an extender. It’s free. When you
go
in to order it, take the heaviest coat you will wear, so the
extender
will be long enough for you. The extender will
be just for you, and just for the seat in your vehicle that
you choose. Don’t let someone else use
it, and use it
only for the seat it is made to fit. To wear it, just attach it
to the regular safety belt.
Checking Your Restraint Systems
Now and then, make sure the safety belt reminder light
and all
your belts, buckles, latch plates, retractors and
anchorages are working properly.
Look for any other
loose or damaged safety belt system parts.
If you see
anything that might keep a safety belt system
from
doing its job, have it repaired.
Torn or frayed safety belts may not protect you
in a
crash. They can rip apart under impact forces. If a belt is
torn or frayed, get a new one right away.
Also
look for any opened or broken air bag covers, and
have them repaired or replaced. (The air bag system
does not need regular maintenance.)
Replacing Restraint System Parts
After a Crash
If you’ve had a crash, do you need new belts?
After a very minor collision, nothing may be necessary.
But
if the belts were stretched, as they would be if worn
during a more severe crash, then you need new belts.
If belts are cut or damaged, replace them. Collision
damage also may mean
you will need to have safety belt
or seat parts repaired or replaced. New parts and repairs
may be necessary even
if the belt wasn’t being used at
the time of the collision.
If an air bag inflates, you’ll need to replace air bag
system parts. See the part on the air bag system earlier
in
this section.
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When You Are Ready to Leave After
Parking
on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
Start your engine:
Shift into a gear: and
Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling a trailer. See the Maintenance Schedule for more
on this. Things that are especially important
in trailer
operation are automatic transmission
fluid (don’t
overfill), engine oil, axle lubricant, belt, cooling system
and brake adjustment. Each
of these is covered in this
manual, and the Index will help
you find them quickly.
If you‘re trailering, it‘s a good idea to review these
sections before you start your trip.
Check periodically to see that
all hitch nuts and bolts
are tight.
Trailer Wiring Harness
The eight-wire harness, if you have one, is stored under
your vehicle along the rear frame crossmember.
It is
wrapped and bound with a plastic strap. The harness has
a 30-anlp battery feed and no connector, and you should
have a qualified electrical service person wire your
harness for you. Attach the harness
to the trailer, then
tape or strap
it to your vehicle’s frame rail. Be sure you
leave
it loose enough so the wiring doesn’t bend or
break, but not
so loose that it drags on the ground.
Store the harness
in its original place. Wrap the harness
together and tie
it neatly so it won’t be damaged.
The five-wire harness,
if you have one, is stored inside
the vehicle at the passenger side rear corner, behind the
jack. This should be wired by a qualified electrical
service person. It must be routed out
of your vehicle
between the rear door and the floor,
with enough of the
harness left on both sides
so that the trailer or the body
won’t pull
it.
Store the harness in its original place. Wrap the harness
together and tie
it neatly so it won’t be damaged.
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Your vehicle may have an air bag system. If it does, see
1 “Servicing Your Air Bag-Equipped Vehicle” in the
I Index before attempting to do your own service work.
You should keep a record with all parts receipts and list
the mileage and the date of any service work
you
perform. See “Maintenance Record” in the Index.
You can be injured and your vehicle could be
damaged if you try to do service work on a
vehicle without knowing enough about
it.
Be sure you have suffkient knowledge,
experience, and the proper replacement
parts and tools before you attempt any
vehicle maintenance task.
0 Be sure to use the proper nuts, bolts and
other fasteners. “English” and “metric”
fasteners can be easily confused.
If you use
the wrong fasteners, parts can later break
or fall
off. You could be hurt.
Fuel (Gasoline Engine)
If your vehicle has a diesel engine, see “Diesel Fuel
Requirements and Fuel System” in the Diesel Engine
Supplement. For vehicles with gasoline engines, please
read this.
L
Use regular unleaded gasoline rated at 87 octane,or
higher. At a minimum, it should meet specifications
ASTM D4814 in the United States and
CGSB 3.5-M93
in Canada. Improved gasoline specifications have been
developed by the American Automobile Manufacturers
Association (AAMA) for better vehicle performance
and engine protection. Gasolines meeting the AAMA
specification could provide improved driveability and
emission control system protection compared to
other gasolines.
Be sure the posted octane
is at least 87. If the octane is
less than 87, you may get a heavy knocking noise when
you drive. If it’s bad enough, it can damage your engine.
If
you’re using fuel rated at 87 octane or higher and you
still hear heavy knocking, your engine needs service.
But don’t worry if you hear a little pinging noise when
you’re accelerating or driving up a hill. ,That’s normal,
and you don’t have to buy a higher octane fuel
to get rid
of pinging. It’s the heavy, constant knock that means
you have a problem.
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If your vehicle has a 7.4L engine and air conditioning,
your vehicle will have a auxiliary engine fan
in addition
to the belt driven
fdn.
If your vehicle has air conditioning, the auxiliary
engine fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
~ Things that burn can get on hot engine parts and
start a
fire. These include liquids like gasoline,
~ oil, coolant, brake fluid, windshield washer and
~ other fluids, and plastic or rubber. You or others
could be burned. Be careful not to drop or spill
things that
will burn onto a hot engine. Before closing
the hood, be sure
all the filler caps are
on properly.
Then
lift the hood to relieve pressure on the hood prop.
Remove the hood prop from the slot
in the hood and
return the prop to
its retainer. Then just let the hood
down and close
it firmly.
Noise Control System
The following information relates to compliance with
Federal noise emission standards for vehicles with a
Gross Vehicle Weight Rating (GVWR) of more than
10,000 lbs. (4 536 kg). The Maintenance Schedule
booklet provides information on maintaining the noise
control system to minimize degradation of the noise
emission control system during the life of your vehicle.
The noise control system warranty is given
in your
Warranty booklet.
These standards apply only
to vehicles sold in the
United States.
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Air Cleaner Refer to the Maintenance Schedule to determine when to
replace the air filter and crankcase ventilation filter.
See “Scheduled Maintenance Services’‘
in the Index.
. . ,.?
To remove the air cleaner filter:
loosen screw bolt to air induct hose
0 remove the three bolts
remove the f~dl air cleaner housing
unsnap the three clips
Then
tilt the top cover up and back to expose the filter
element. Install
a new filter element with the folds in the
down position.
See “Normal Replacement Parts” for the proper filter
to use.
b
Operating the engine with the air cleaner off can
cause you or others to be burned. The air cleaner
not only cleans the
air, it stops flame if the engine
backfires.
If it isn’t there, and the engine
backfires, you could be burned. Don’t drive with
it
off, and be careful working on the engine with
the
air cleaner off.
1 NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily get
into your engine, which will damage it. Always
have the
air cleaner in place when you’re driving.
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Automatic Transmission Fluid
7 ’ ~ n to Check and Change
A good time to check your automatic transmission fluid
level is when the engine oil is changed.
Change
both the fluid and filter every 50,000 miles
(83 000 km) if the vehicle’s GVWR is over 8,600 or
if
the vehicle is mainly driven under one or more of
these conditions:
0 In heavy city traffic where the outside temperature
0 In hilly or mountainous terrain.
0 When doing frequent trailer towing.
regularly
reaches
90°F (32°C) or higher.
0 Uses such as found in taxi, police or delivery service.
If your vehicle’s GVWR is not over 8,600 and you do
not use your vehicle under any of these conditions, the
fluid and filter do not require changing.
See “Scheduled Maintenance Services”
in the Index.
How to Check
Because this operation can be a little difficult, you
may choose to have this done at your GM dealer
Service Department.
If you do it yourself, be sure to follow all the
instructions here, or you could get
a false reading on
the dipstick.
NOTICE:
Too much or too little fluid can damage your
transmission.
Too much can mean that some of
the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Be
sure to get an accurate reading if you check your
transmission fluid.
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