1996 CHEVROLET EXPRESS Owners Manual

Downloaded from www.Manualslib.com manuals search engine Electrical System
Add-on Electrical Equipment
NOTICE:
Don’t add anything electrical to your vehicle unless
you check with your dealer first. Some electrical
equipment can damage your vehicle and the
damage wouldn’t be covered by your warranty. Some add-on electrical equipment can keep other
components from working as they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your vehicle, see “Servicing
Your Air Bag-Equipped Vehicle” in the Index.
Headlamp Wiring
The headlamp wiring is protected by a circuit breaker in
the lamp switch.
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 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.
Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power
windows and other power accessories. When the current
load is too heavy, the circuit breaker opens and closes.
This protects the circuit until the current load returns
to
normal or the problem is fixed.
6-61

Downloaded from www.Manualslib.com manuals search engine Instrument Panel Fuse Block
The fuse block access door
is on the driver’s side of the
~ instrument panel below the
hood release lever.
You can remove fuses with a fuse extractor. The fuse
extractor is mounted to the fuse block access door.
To remove fuses if you don’t have a fuse extractor, hold
the end
of the fuse between your thumb and index finger
and pull straight out.
Be sure
to use the correct fuse. If you ever have a
problem
on the road and don’t have a spare fuse, you
can “borrow” one of the correct value. Just pick some feature
of your vehicle that you can
get along
without
-- like the radio or cigarette lighter -- and use
its fuse,
if it is of the value you need. Replace it as soon
as you can. See “Fuses and Circuit Breakers” in the
Index for more information.
FUSE BLOCK INFORMATION
(u 30A
h DEF~
d 20A a 10A
1;: 1 FDIOq
$2 25A 9
15990609
6-62

Downloaded from www.Manualslib.com manuals search engine POSITION NAME
1. STOP
2. HTD MIR
3. CTSY
4 GAUGES
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
Hazard
CRUISE
PWR AUX
Crank
PARK LPS
AIR BAGS
WIPER
HTR-A/C
CIG LTR
ILLUM
DRL
CIRCUITS PROTECTED
Stop/CHMSL, Stoplamps
Electric Heated Mirrors
Courtesy
Lamps, Dome/RDG Lamps, Vanity Mirrors, Power Mirrors
IP Cluster, DRL Relay, DRL Module, HDLP Switch, Keyless Entry
Illumination, Low Coolant Module, CHIME Module, DRAB Module
Hazard LampsKHIME Module
Cruise Control Auxiliary Power Outlet, ALDL
License Plate Lamp, Parking Lamps, Taillamps, Front Sidemarkers,
Glove Box Ashtray
SDM
Wiper Motor, Washer Pump
NC, A/C Blower, High Blower Relay, HTD Mirror
Power Amp, Cigarette Lighter, Door Lock Relay
LP Cluster, HVAC Controls, RR HVAC Controls, IP Switches, Radio
Illumination, Door Switch Illumination
DRL Relay
6-63

Downloaded from www.Manualslib.com manuals search engine POSITION
16.
17.
18.
19.
20.
21.
22.
23.
24.
A.7-
€3.7
NAME
TURN B/U
RADIO-
1
BRAKE
RADIO-B
TRANS RR
FOG
Not Used
Not Used
RR
HVAC
PWR ACCY
PWR WDO
CIRCUITS PROTECTED
Front Turn, RR Turn, Back-up Lamps, BTSI Solenoid
Radio (Ign, Accy)
4WAL PCM,
ABS, Cruise Control
Radio (Battery), Power Antenna
PRNDL, Automatic Transmission
Rear Window Defog
RR HVAC Controls,
HIGH, MED, LOW Relays
Power Door Lock, Six-Way Power Seat, Keyless Entry
Illumination Module
Power Windows
?Circuit Breaker Do
not use fuses of higher amperage than those recommended above. Fuse amperage levels are also imprinted on the
fuse panel under the dash.
6-64

Downloaded from www.Manualslib.com manuals search engine Capacities and Specifications
Normal Maintenance 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 truck 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
Type V6 V8
Engine
“VORTEC” 4300
“VORTEC” 5000
VIN Code w M
Fuel System SFI’ SFI
Sequential Central Port Fuel Injection
Wheel Nut Torque
MODEL TORQUE
All 122 ft-lb ( 165 N-m)
“VORTEC” 5700
V8
R
SFI’
2Sequential Multi-Port Fuel Injection “VORTEC”
7400
V8
J
SFI~
L LC

Downloaded from www.Manualslib.com manuals search engine Cooling System Capacity
ENGINE VIN
“VORTEC” 4300 W
“VORTEC” 5000 M
“VORTEC” 5700 R
“VORTEC” 7400
J
QTY Without Rear Heater*
11 quarts ( 10.4 L)
17 quarts ( 16 L)
17 quarts ( 16 L)
23 quarts (2 1.8 L)
QTY With Rear Heater*
14 quarts (13.2 L)
20 quarts (18.9 L)
20 quarts ( 18.9 L)
26 quarts (24.6 L)
After refill, the level MUST be checked as outlined under “Engine Cooling System” in Section 5.
*All quantities are approximate.
Crankcase Capacity
ENGINE
“VORTEC” 4300
“VORTEC”
5000
“VORTEC” 5700
“VORTEC” 7400
VIN
W
M
R
J
Quantity With Filter
4.5 quarts (4.3 L)
5 quarts (4.8 L)
5 quarts (4.8 L)
7 quarts (6.5 L)
All quantities are approximate.
After refill, the level
MUST be checked as outlined under “Engine Oil And Filter Recommendations” in Section 5.
*Add an additional quart (1 L) for RPO 521 and RPO KL5 Models.

Downloaded from www.Manualslib.com manuals search engine Fuel Tank Capacity
TYPE
Standard Tank
Cutaway Standard Tank
Cutaway Optional Tank
All quantities are approximate.
QUANTITY
3 1 gallons (1 17.3 L)
35 gallons (132 L)
55 gallons (208.2 L)
Normal Replacement Parts
Engine “VORTEC” 4300
VIN w
Oil Filter PF52
Air Cleaner Filter* A9 17C
PCV Valve CV789C
Spark
Plugs 4 1-932
Fuel Filter GF48
1
Radiator Cap RC36 VORTEC”
5000
M
PF1218
A9 17C
cv774c
4 1-932
GF48
1
RC36
*For severe dusty conditions, use
AC Air Filter, Part No. 1236C. “VORTEC”
5700
R
PF1218
A9 17C
cv774c
4 1-932
GF48
1
RC36 “VORTEC” 7400
J
PF1218
A917C
cv774c
4 1-932
GF48
1
RC36
6-67

Downloaded from www.Manualslib.com manuals search engine Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same. If the air conditioning sys&m in your vehicle needs refrigerant, be
sure the proper refrigerant is used. If you’re not sure, ask your GM dealer.
TYPE
Refrigerant
R- 134a
QTY Front
Only
3.00 lbs.
(1.36 kg)
u
QTY Front and
Rear
4.875 lbs.
(2.21 kg)