Page 299 of 404

NOTICE.:
The wrong wheel can also :cause problems with
bearing
life, brake cooling, speedometer or
odozm’etier calibration, headlamp ;aim, b-umper
height, vehicle ground .clearance and
tire or tire
chain clearance to the
body and cha.ssis.
Jsed Replwement Wheels
Putthg
a used. whml on your vehicle is,
dangerous. You can’t how how it% been used. or
hdar it’s be-m driven. It could fail suddenly
and cstust an accident. If you have to- replace a
wheel,
use a new GM. ortginal equipment wheel.
Tire Chains
NOTICE:.
If your vehicle has P235/75Rl5, P2W71JIiI5,
P23Y55R16 or 31.~101.50R15LT/C~size. tires; ‘don’t
use tire chains. They
ean damage your vehicle
because there’s not enough clearance.
Use another type of traction device only if its
manufacturer recommends it for use ‘011 your
vehicle and tire size combinat3on and road
conditions. Follow that manufticturer ’s
instructions. To heIp avoid damage to your
vehicle, drive slowly, readj-ust or remove the
device
if it’s contacting your vehicle, and don’t
spin your wheels.
NOTICE: (Contimued)
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Page 314 of 404
FuseKircuit Usage
Breaker
13
14
15
16
17
18
19
20
21
22
23
24
Auxiliary Po,wer
Power Locks
4WD Switch, Engine Control
(VCM, PCM, Transmission)
Supplemental Inflatable Restraint,
SDM Module
Front Wi.per
Not Used
Radio Battery
Not
Used.
HVAC .I, WAC Control Head.,
HVAC Devices
Anti-Lock Brakes
Rear
W~per
Ra.diO., Ignition
Engine Compartment Fuse Block
The fuse block is under the .hood at the drivei'8 side of
the engine compartment.
Remove the cover
by turning -the fastener to the left.. 'To
reinstall the fbse panel cover, push in and turn the
fastener to the right.
6-65
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Page 316 of 404
Name
B/U LP
A/C
RAP
02-
IGN B
DRL
FOG LP
GN A
STUD #2
PAW'
LR PRK
IGN C
Usage
Back-up Lamps.
Air Conditioning
Retained Accessory
Power
Oxygen Sensor.
Column- Feed, IGN -2, 3,4
Daytime Running Lamps
Fag Lamps
Stating. and Charging EN 1
Accessory Feeds, Elec.tric Brake
J *kirigLamps
Nmt?
.HTDSEAT
-MC
RRDFOG
'HVAC
TRCHMSL
'RR
'W/W
CRANK
HAZLP
Usage
Heated Seat
Active Transfer Case
Rear
Defogger
HVAC. Syst.em
Tr~ler
Center Hi"gh-MOuit
Stoplamp
Rear 'Window Wiper
Clutch Switch,
NSBU Switch
Hazard
Laps:
HTDMIR
STOPLP
TBC
L Vehicle Center Hi-&-
Stoplamp
Heated
Mirror
stop Lamps
Truck Body Computer
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Page 328 of 404

.Maintenance Schedule
Every 7,500 Miles. (12 500 krn): Engine .Oil and Filter
Change (or every
€.2 months, whichever occurs. first).
Chas& Lubrication
(or every .12 -months,, whichever
cs first). Drive Axle Service. 'IC- atation.
Every 15,000 Miles (25 OQO km): Automatic
Every 30,000 Mriles (50 000. km): Fuel Filter
.Transmission Service,
(severe conditions .only).
Replacement. Au Cleaner Filter Replacement. Front
Wheel
Bearing Rep-ack (2WD only) (or at each brake
felining, whichever
occurs first).
Every 50,000 Miles (83 000 km): Automatic
TransrnissiQn Service (noma1 conditiobs)
.
Every 60,000 Miles (PO0 000 km): Engine
Acces.sory .Drive Belt Inspection. Fuel
Tank, Cs
and Lines Inspection.
Every. 100,000. Miles (166 000 km): Spark Plug Wire
Inspection.
Spark Plug Replacement. 4.3L Engine.
Only: Positive Crankcase Ventilation (PCV) vdve
Inspection.
Every 150,000 Miles (240 000 km): Cooling System
S.ervice (or every
60 months, whichever oceurs first).
.These intervals only summmize vllainfename servitm.
Be sure tu follow the .completg maintenance schedule on
the following pages.
7-7
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Page 366 of 404

On all vehicles, th,e key should come -o.ut only in LOCK.
,Parking Brake- and Automatic Transmission
-K (P) Mechanism Check
r
eould begin to move, YOU or others could be
injured and
property cdd be damagqd. M.ake-
sure. there- is room in front.of your vehicle in case
it begins. to roll. Be ready to apply the regular
brake at once should the vehicle b,egin to-move.
!]
Pwk on a fairly SI p nilf, with tne. veniGie facing
downhill. Keeping
your foot :on the reguiar brake,. set
the parking brake.
0 TO check the parkin-g brake’ssholding ability:
With
the engine running. and transmission in.
NEUTRAL (N), :slowly remove- €001 ,pressure from
the regular brake pedal. Do this uatil the vel .s
held. by the parking brake only.
0 TQ check the PARK (P) rnechanixn’s holding ability:
With
the. engine funning, shift to PARK (P). Then
:release a11 brakes.
Underbody Flushhg ‘Service
At least every spring, use plain water to flush any-
corrosive materialsfrom the underbody.
Take care to
clean thoroughly any-areas where mud ardother debris
can collect.
7-45
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Page 368 of 404
Throttle. System Inspection. Brake System .Inspection
7-47
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Page 387 of 404

I998 CHEVROI ET I. -S.E.RVICE PUBLICATIONS ORDERING INFORMATION
The followingr publica.tions covering the operation and sewicing of your vehicle ean be purcha.sed by filling out'
the Service Publication Order Form in this bo.ok a.n.d mailing lt in with yo.ut check, rn.onqrorder,
or credit card information tu Helm, Incorpora'ted (address: bellow.)
SERVICE MANUALS
CURRENT PUB-LIGATIONS FOR 1998, CMEVROLET
OWNER'S INFO.RMATION
Service -Manuals. have .the diagnosis and :repair information Owner publications are written directly f~r "Owners and.
on engines, transmission, axle;suspension, brakesj intended to p'rovide basic operatitmil. information about th.e
eiectri-I, sfeerhg, body, etc. vehicle. The Owner's manual will include the Maintenance
RETAIL S-ELL. PRICE: $90.00 Schedule
forall .mdde.ls.
TRANSMSSION, TRANSAXLE, TR.ANS.FER CASE
.UNIT REPAIR MA.NUAL
This- manual providesinTorniation on unit repair sewice
in-Portfolio: I.nclucles a Portfolio, Owner's. Manual and
Warranty
Booklet.
RETAILSELL PRICE:. $1 5.00
ProCarManuals.com
Page 390 of 404

Section 9 Index
Ashtrays- ....................................... 2-46
Audio SysternTips .............................. '3 -23
Audio Systems ............................... 3-1.3-6 .
Automatic Headlamp System ...................... 2-40
Automatic Transmission
Check ...................................... 7-43
Fluid
.................................. 6-17, .. 6-68
Operation
................................... 2-17
Park Mechanism Check ........................ 7-45
Shif~~ng ..................................... 2-17
FroItt
.........................................'6 - 24
Rear .................................. 2-28, 6-22
Battery ..................................... -6-34
ChargeLight ................................ 2-56
Replacement, Keyless Entry ..................... 2-7
Warnings
.................................... 5-3
Battery Run-Down Protection ..................... 2-43
BB-B Auto . Line .................................. 8-9
Better Business . Bureau Mediation ................... 8-9
Br~eFluid .................................... 6-30
Brake, Parking ................................. 2-22
Brake System Warning Light ........................ 2--5.8
Axle-
.Jump Starting ................................... 5-3
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