1998 CHEVROLET EXPRESS change time

Downloaded from www.Manualslib.com manuals search engine 5. Install a new filter element with the folds in the
down position.
Reverse Steps 1 through
4 to replace the air cleaner.
See “Normal Replacement Parts” for the proper filter
to use.
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 /!1 CAUTION:
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.
Automatic Transmission Fluid
If your vehicle has a diesel engine, see “Automatic
Transmission Fluid” in the Diesel Supplement.
When 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:
In heavy city traffic where the outside temperature
regularly reaches
90” F (32” C) or higher.
In hilly or mountainous terrain.
0 When doing frequent trailer towing.
6-17

Downloaded from www.Manualslib.com manuals search engine Brake Adjustment
Every time you make a brake stop, your disc brakes
adjust for wear.
Battery
If your brake pedal goes down farther than normal, your
rear drum brakes may need adjustment. Adjust them by
backing up and firmly applying the brakes a few times.
Replacing Brake System Parts
The braking system on a modern vehicle is complex.
Its many parts have to be of top quality and work well
together if the vehicle is to have really good braking.
Your vehicle
was designed and tested with top-quality
GM brake parts. When you replace parts
of your braking
system
-- for example, when your brake linings wear
down and you have to have new ones put in
-- be sure
you get new approved GM replacement parts. If you
don’t, your brakes may
no longer work properly. For
example, if someone
puts in brake linings that are wrong
for your vehicle, the balance between your front and
rear brakes can change
-- for the worse. The braking
performance you’ve come to expect can change
in many
other ways if someone puts in the wrong replacement
brake
parts.
Every new vehicle has an ACDelco Freedom@ battery.
You never have to add water to one of these. When it’s
time for a new battery, we recommend an ACDelco
Freedom battery. Get one that has the replacement
number shown on the original battery’s label.
If you have a diesel engine, you have two batteries. The
primary battery is located on the passenger’s side
of the
engine compartment. The second battery is located
on
the driver’s side framerail.
Vehicle Storage
If you’re not going to drive your vehicle for 25 days
or more, remove the black, negative
(-) cable from
the battery. This will help keep your battery from
running down.
6-31

Downloaded from www.Manualslib.com manuals search engine If your vehicle has dual rear wheels, always use one of
the correct rotation patterns shown here when rotating
your tires.
When you install dual wheels, be sure the vent holes in
the inner and outer wheels on each side are lined up.
After the tires have been rotated, adjust the front
and rear inflation pressures
as shown on the
Certificationflire label. Make certain
that all wheel
nuts are properly tightened. See “Wheel Nut Torque’’
in the Index.
A CAUTION:
Rust or dirt on a wheel, or on the parts to which
it is fastened, can make wheel nuts become loose
after
a time. The wheel could come off and cause
an accident. When you change
a wheel, remove
any rust or dirt from places where the wheel
attaches to the vehicle. In an emergency,
you can
use a cloth or a paper towel to do this; but be
sure to use a scraper or wire brush later, if you
need to, to get all the rust or dirt
off. (See
“Changing
a Flat Tire” in the Index.)
6-44

Downloaded from www.Manualslib.com manuals search engine Capacities and Specifications
Replacement Parts
Replacement part numbers listed in this section are based on the latest information available at the time of printing,
and are subject to change. If a part listed in this manual is not the same as the part used
in your vehicle when it was
built, or
if you have any questions, please contact your GM dealer.
These specifications are for information only. If you have any questions, see the service manual for the chassis or
refer to the body manufacturer’s publications.
Engine Identification -- Gasoline Engines
Engine “VORTEC” 4300 “VORTEC” 5000
Type V6 V8
VIN Code w M
Fuel System CSFI’ CSFI 1
lCentra1 Sequential Fuel Injection
2Sequential Fuel Injection
Wheel Nut Torque
MODEL TORQUE
All 140 ft-lb (190 Nem)
“VORTEC” 5700
V8
R
CSFI’
“VORTEC” 7400
V8
J
SFI~

Downloaded from www.Manualslib.com manuals search engine Short Trip/City Maintenance Schedule -- Gasoline Engines
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240
000 km) should be performed at
the same interval after 150,000 miles (240
000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections” following.
Footnotes
The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to the
completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.
# Lubricate the front suspension, kingpin bushings,
steering linkage and rear driveline center splines.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection” under “Periodic
Maintenance Inspections” in
Part C of this schedule.
* * Drive axle service (see “Recommended Fluids and
Lubricants” in the Index for proper lubricant to use):
0
0
0
Locking Differential -- Drain fluid and refill at first
engine oil change. At subsequent oil changes, check
fluid level and add fluid as needed. If driving in
dusty areas or towing a trailer, drain fluid and refill
every 15,000 miles (25
000 km).
Standard Differential -- Check fluid level and add
fluid as needed at every oil change. If driving in
dusty areas
or towing a trailer, drain fluid and refill
every 15,000 miles
(25 000 km).
More frequent lubrication may be required for
heavy-duty use.
7-8

Downloaded from www.Manualslib.com manuals search engine Long Tripmighway Maintenance Schedule -- Gasoline Engines
The services shown in this schedule up to 100,000 miles
( 166 000 km) should be performed after 100,000 miles
(166
000 km) at the same intervals. The services shown
at
150,000 miles (240 000 km) should be performed at
the same interval after
150,000 miles (240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections” following.
Footnotes
The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the
completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services
be
performed at the indicated intervals and the maintenance
be recorded.
## Lubricate the front suspension, kingpin bushings,
steering linkage and rear driveline center splines.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection” under “Periodic
Maintenance Inspections” in Part
C of this schedule.
** Drive axle service (see “Recommended Fluids and
Lubricants” in the Index for proper lubricant to use):
0 Locking Differential -- Drain fluid and refill at first
engine oil change. At subsequent oil changes, check
fluid level and add fluid as needed.
fluid as needed at every engine oil change.
0 Standard Differential -- Check fluid level and add
7-27

Downloaded from www.Manualslib.com manuals search engine Courtesy Transportation
Chevrolet offers Courtesy Transportation for customers
needing warranty service. Courtesy Transportation will
be offered
in conjunction with the coverage provided by
the Bumper to Bumper New Vehicle Limited Warranty
to retail purchasers
of 1998 Chevrolet passenger cars
and light duty trucks (please see your selling dealer
for details).
Courtesy Transportation includes:
One way shuttle ride for any warranty repair
completed during the same day.
0 Up to $30 maximum daily vehicle rental allowance
Up to $30 maximum daily cab, bus or other
for any overnight warranty repair up
to five days, OR
transportation allowance
in lieu of rental for any
overnight warranty repair up
to five days, OR
Up to $10 daily fuel allowance for rides provided by
another person (i.e., friend, neighbor,
etc.) in lieu of
rental for any overnight warranty repair up to five days.
Note: All Courtesy Transportation arrangements
will be administered by your Chevrolet dealer
service management. Claim amounts should
reflect all actual costs.
0 Chevrolet Courtesy Transportation is not part of the
Bumper to Bumper New Vehicle Limited Warranty.
Chevrolet reserves the right to make any changes or
discontinue Courtesy Transportation at any time
without notification.
Chevrolet dealer.
0 For additional program details, contact your
Some state insurance regulations make it impractical
to
rent vehicles to people under 21 years of age. If you are
under 21 and have difficulty renting a vehicle, Chevrolet
will reimburse up to $30/day for documented
transportation
you receive.
For warranty repairs during the Complete Vehicle
Coverage period in the New Vehicle Limited Warranty,
interim transportation may be available under
the
Courtesy Transportation Program. Please consult your
dealer for details. The Roadside Assistance program is
available only in
the United States and Canada.
In Canada, please consult your GM dealer for
information
on Courtesy Transportation.

Downloaded from www.Manualslib.com manuals search engine ORDER TOLL FREE (NOTE: For Credit Card Holders Only)
Orders will be mailed within 10 days of receipt. Please allow ade uate time for postal
information within
30 days of delivery. On returns, a re-stocking fee may be applied (Monday-Friday 8:OO AM - 6:OO PM EST)
service. If further information is needed, write to the address s gh own below or call
1-800-782-4356 1-800-782-4356. Material cannot be returned for credit without p\
acking slip with return
FAX Orders Only 1-31 3-865-5927 against the original order.
PUBLICATION FORM
ITEM DESCRIPTION VEHICLE MODEL
PRICE
NAME
I YEAR
NUMBER TOTAL
EACH* QTYm PRICE
I- I
9
9
8
G
Service Manual
Car
& Light Truck $90.00
1998
Transmission Unit Repair 1998 $40.00
Owner's Manual In Portfolio
Owner's Manual Without Portfolio $1 5.00 1998
$1 0.00 1998
M
S
H
I
P
T
0
NOTE: Dealers
and Companies please provide dealer or company name, and also the
name of the person to whose attention the shipment should be sent.
Mail completed order form to:
For purchases outside USA. please write to the above address for quotation.
HELM, INCORPORATED
P.O. Box 07130 Detroit, MI 48207
(CUSTOMER'S NAME)
(ATTENTION)
(STREET ADDRESS-NO
P.O. BOX NUMBERS)
~
(CITY) (STATE) (ZIP CODE)
DAYTIME TELEPHONE
NO.
GM-CHE-ORD98 "(Prices are subject to change without notice and without incurring
obligation. Allow ample time for delivery.)
P
A
Y
M
E
N
T
-
i
Note to Canadian Customers: All listed prices are quoted in US. funds. Canadian residents
are to make checks payable in U.S. funds. To cover Canadian postage, add $11.50 plus the
U.S. order processing.
TOTAL MATERIAL
Order payable to Michigan Purchasers
Helm, Inc. (USA funds add 6% sales tax only - do not send cash.) U.S. Order Processing
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