1996 CHEVROLET EXPRESS maintenance

Downloaded from www.Manualslib.com manuals search engine The 1996 Chevrolet Express Owner’s Manual
Seats and Restraint Systems ............................................................. 1-1
This section tells you how to use your seats and safety belts properly. It also explains the “SIR’ system.
FeaturesandControls .................................................................. 2-1
This section explains how to start and operate your vehicle.
This section tells
you how to adjust the ventilation and comfort controls and how to operate your
audio system.
Here you’ll find helpful information and tips about
the road and how to drive under different conditions.
This section
tells you what to do if you have a problem while driving, such as a flat tire or overheated
engine, etc.
Here the manual
tells you how to keep your vehicle running properly and looking good.
This section tells
you when to perform vehicle maintenance and what fluids and lubricants to use.
This section
tells you how to contact Chevrolet 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.
Comfort Controls and Audio Systems ..................................................... 3-1
YourDrivingandtheRoad .............................................................. 4-1
ProblemsontheRoad .................................................................. 5-1
Service and Appearance Care ............................................................ 6-1
Maintenanceschedule .................................................................. 7-1
Customer Assistance Information ........................................................ 8-1
Index ........................................................................\
........ 9-1
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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 Your 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.
1 37

Downloaded from www.Manualslib.com manuals search engine 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.
Tf 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.
1-48

Downloaded from www.Manualslib.com manuals search engine 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.
Main ~ mr ~ ce 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-amp 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.
4-37

Downloaded from www.Manualslib.com manuals search engine Your vehicle may have an air bag system. If it does, see
“Servicing Your Air Bag-Equipped Vehicle”
in the
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 sufficient 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.
Use regular unleaded gasoline rated at
87 octane or
higher.
At a minimum, it should meet specifications
ASTM D48 14 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
ofpinging.
It’s the heavy, constant knock that means
you have a problem.
6-2

Downloaded from www.Manualslib.com manuals search engine 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 fan.
A CAUTION:
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.
6-9

Downloaded from www.Manualslib.com manuals search engine Tampering With Noise Control
System Prohibited
Federal law prohibits the following acts or the
causing thereof
1.
2.
The removal or rendering inoperative by any person,
other than
for purposes of maintenance, repair or
replacement,
of any device or element of design
incorporated
into any new vehicle for the purpose of
noise control, prior to its sale or delivery to the
ultimate purchaser or while
it is in use; or
The use
of the vehicle after such device or element
of design has been removed or rendered inoperative
by any person.
Among those acts presumed
to constitute tampering are
the acts listed below.
Insulation:
0 Removal of noise shields or underhood insulation.
Engine:
Removal or rendering engine speed governor (if so
equipped) inoperative so as to allow engine speed to
exceed manufxturer specifications.
Fan and Drive:
Removal of fan clutch (if so equipped) or rendering
clutch inoperative.
Removal of fm shroud (if so equipped).
Air Intake:
0 Removal of air cleaner silencer.
0 Reversing air cleaner cover.
Exhaust:
0 Removal of muffler and/or resonator.
Removal of exhaust pipes and exhaust pipe clamps.
6-10

Downloaded from www.Manualslib.com manuals search engine 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.
I
70 remove the air cleaner nlter:
loosen screw bolt to air induct hose
0 remove the three bolts
remove the full 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.
- CAUTAN:
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.
I NOTICE: I
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.
6-15