bulb CHEVROLET CAMARO 1967 1.G Chassis Owner's Manual

ELECTRICAL-BODY AND CHASSIS 12-11

CHEVELLE STATION WAGON

CHEVROLET STATION WAGON

CHEVELLE WAGON

CHEVROLET SEDAN

OPERATION

Bulb

Replacement

Lens

Replacement

Housing

Replacement
METHOD

Remove Lens (Outside)

Remove Socket (Inside Rear

Compartment)

Remove Retaining Screws (Outside)

Remove Housing and Disassemble

Remove From Outside (Retaining

Nuts in Rear Compartment

Remove From Inside

Remove From Outside (Retaining

Bolts Under Lens)

Lower Rear Bumper
BODY TYPE

Chevelle

X

X

X
Chevelle

35

X

X

X
Chevrolet

X

X

X
Chevrolet

35-45

X

i

•x

X
Camaro

F

X

-

X

X
Chevy II

X

X

X

X

Fig.
17 - Rear Lighting Composite (Exc. Corvette)

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-12

NOTE:
Gasket must be carefully installed to

prevent body leaks.

Corvette (Fig. 18)

1.
Working at the underside of the body rear panel, dis-

connect the harness connector at the lamp assembly;

then remove the lamp assembly retaining nuts and

remove lamp assembly from recess in body panel.

NOTE:
Remove tail pipe extensions and rear

body valance panel to facilitate removal of the

outboard lamp assemblies.
2.
Position lamp assembly in body panel recess so that

studs are aligned with holes in panel.

3.
Position lamp assembly ground wire over stud; then

install remaining nuts and tighten securely.

4.
Install harness connector to lamp assembly and test

operation of light.

Bulb Replacement (Fig. 19)

1.
Remove lens retaining screws and disengage lens

from housing.

2.
Replace bulb, check operation of unit.

3.
Reinstall lens and retaining screws.

VIEW B

BACKING LAMPS

Fig.
18 - Rear Lighting (Corvette)

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-14

BACKING LAMPS

lamp Housing Replacement (Fig. 19)

Bumper Installation

1.
Remove two screws retaining housing assembly in

the bumper and remove housing.

'2.
Disconnect lamp wire assembly connector from wir-

ing harness.

3.
Remove lens retaining screws, lens and bulb from

housing assembly and transfer to new housing unit.

4.
Connect lamp wiring assembly to harness assembly,

housing and check operation of lamp.

•5.
Position lamp assembly in place and install retaining

screws.

Corvette (Fig. 18)

1.
Remove license plate and bracket assembly.

2.
Remove tailpipe extensions and rear body valance

panel.

3.
Remove backing lamp attaching nuts.

4.
Disengage backing lamp assembly from body opening

and disconnect wiring harness at rear of lamp.

5. Transfer bulb, gasket and lens to replacement

housing.

6. Connect chassis wiring connector to housing and po-

sition lamp assembly to body opening.

7. Attach ground wire to housing and install retaining

nuts to housing.

8. Install body valance panel.

9. Position license plate assembly to body and install

retaining screws.

LICENSE PLATE LAMP SERVICE

Lamp Housing

1.
Remove the lamp assembly retaining screws and re-

move lamp assembly from mounting location (rear

bumper center face bar most models). On Corvette

models remove rear valance panel.

2.
Disconnect lamp wiring from chassis harness con-

nector (inside trunk on some models).

3.
Force grommet and Wiring down through body open-

ing (where applicable) and remove assembly from

vehicle.

4.
To install replacement unit, insert grommet and wir-

ing through body opening where applicable and con-

nect wiring to chassis harness.

5. Position assembly and install retaining screws. On

Corvette models make sure ground wire is properly

installed.

6. Check operation of lamp assembly.

iuib Replacement

1.
Remove lens retaining screws and lens.

NOTE:
On Camaro models loosen housing re-

taining screws.

2.
Remove and replace bulb.

3.
Position lens and install retaining screws.
AUTOMATIC TRANSMISSION

QUADRANT LAMP REPLACEMENT

Chevrolet (Fig. 20)

1.
Remove four screws retaining lower mast jacket

cover to upper cover.

2.
Remove two screws retaining upper cover to instru-

ment console.

3.
Remove two screws securing shield to upper cover

assembly.

4.
Remove and replace bulb.

5. Position shield to upper cover assembly and install

retaining screws.

6.' Position upper cover assembly to instrument console

and install retaining screws.

7. Position lower cover and install four retaining

screws.

Chevy II and Camaro (Fig. 21)

1.
Remove two screws attaching retainer and dial to

directional signal housing; remove retainer and dial

face from housing.

2.
Remove cap and bulb.

3.
Replace bulb and cap, then position dial and retainer

to housing.and install attaching screws.

Fig.
20 - Dial Quadrant Lamp — Chevrolet

1.
Upper Cover

2.
Shield

3. Lamp and Socket
4.
Dial Pointer

5.
Lower Cover

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-15

Fig.
21 - Qlal Quadrant Assembly ~ Camaro

SEAT SEPARATOR CONSOLE LAMPS

COMPARTMENT LAMP REPLACEMENT (Fig.
22)

1.
Remove (pry up) switch assembly from console open-

ing in.the instrument compartment.

2.
Remove bulb from the socket.

3.
Replace bulb and install switch assembly in console

opening.

COURTESY LAMP REPLACEMENT (Fig. 22)

1.
Remove two screws and lens at rear of console.

2.
Remove bulb from retainer.

3.
Replace the bulb, position the lens and install attach-

ing screws.

QUADRANT LAMP REPLACEMENT (Fig. 22)

1.
Remove Dial Quadrant Trim plate retaining screws

and lift trim plate assembly from console opening.

2.
Disconnect lamp socket from the retainer and re-

move bulb from the socket.

3.
To install, insert bulb into the socket and snap the

socket assembly into the retainer.

Position the trim plate assembly into the console

opening and install the retaining screws.
4.

LIGHTING SWITCH REPLACEMENT (Fig. 24)

1.
Disconnect battery ground cable.

2.
Pull control knob out of headlamp ON position.

3.
Reach under instrument panel and depress the switch

shaft retainer (Fig. 25) and remove knob and shaft

assembly.

4.
Remove ferrule nut using Tool J-21932 and remove

switch assembly from instrument panel.

NOTE:
Some Chevelle models require use of

ToolJ-4880.

5. Disconnect the multi-plug connector from the lighting

switch. A screw driver may be inserted in the side
of the switch to pry the connector from the switch.

6. Connect the multi-plug connector to the replacement

switch (Fig. 23). Connect battery cable to battery

terminal and check operation of the light switch'in all

positions.

NOTE:
Ground switch- to check dome lamp

operation.

7. Position switch and bezel to panel mounting hole and

install ferrule jmt.

8. Insert switch control knob and shaft assembly into

switch until retainer engages shaft.

WIPER SWITCH REPLACEMENT (Fig. 26)

1.
Disconnect battery ground cable.

2.
Remove the connectors from the rear of the switch.

NOTE:
On Air Conditioned models it is nec-

essary to remove left A/C outlet duct for acces-

sibility to rear of switch.

3.
Loosen set screw and pull knob from switch shaft.

4.
Remove retaining nuts using special Tool J-21932

and withdraw wiper switch from behind console.

NOTE:
Some Chevelle models require special

ToolJ-4880.

5. To install, reverse removal procedure and check

operation of wipers.

STOPLIGHT SWITCH REPLACEMENT (Fig. 27)

1.
Disengage retaining fingers, disconnect wiring har-

ness connector from switch and unscrew switch from

mounting clip.

2.
Depress brake pedal and push new switch into clip

until shoulder bottoms out against clip.

3.
Check switch position for proper operation. Elec-

trical contact should be made when the brake pedal is

depressed 3/8" to 5/8" from fully released position.

DIMMER SWITCH REPLACEMENT (Fig. 28)

1.
Fold back upper left corner of front floor mat, disen-

gage connector lock fingers, and disconnect multi-

plug connector from dimmer switch.

2.
Remove two screws retaining dimmer switch to toe

pan.

3.
Connect multi-plug connector to new switch and

check operation. Install new switch to toe pan with

two screws. Replace floor mat.

BACKING LAMP SWITCH REPLACEMENT

Located on Mast Jacket (Fig. 29)

1.
Disconnect wiring connector at switch terminals.

2.
Remove switch attaching screws and switch from

mast jacket.

3.
Position new switch to mast jacket, install the re-

taining screws and connect wire connector to switch.

NOTE:
Position gear shift in neutral before

assembling switch to mast jacket.

4.
Check operation of switch.

Located on Transmission (Fig. 30)

1.
Raise and support vehicle.

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-18

TO BACK UP

LAMP SWITCH

TO STOP LAMP

SWITCH

Fig.
29 - Backing Lamp Switch on Mast Jacket (Chevelle)

tray, trim plate assembly, and indicator lens and

housing from console.

Disconnect bulbs from housing. Disconnect multiple

connector at switch terminals or on Camaro models

from the wiring harness at the in-line connector.

Remove switch retaining nuts and switch.

Tp install new switch, clamp pawl rod against contact

point "B" of detent and align slot in contact support
6.

7.
with drive hole in switch and insert a pin (3/32" dia.)

to hold in place. Switch is now in drive position.

Position switch to lever and bracket assembly with

lever engaged in contact support and install retaining

nuts.

Remove clamp and pin, connect wiring and check op-

eration of switch.

Install indicator lamps, housing, lens, ash tray and

trim plate assembly.

Corvette {Fig. 32)

1.
Disconnect shift control lever arm from the control

rod.

2.
Remove the shift control knob.

3.
Remove Trim Plate retaining screws and trim plate

assembly.

4.
Remove control assembly retaining screws.

5. Remove control assembly from the seal and cut

switch wiring.

6. Remove switch retaining nuts and switch from, the

control assembly.

7. To install, position gearshift in "Drive" position

align hole in contact support with hole in switch and

insert pin (3/32" dia.) to hold support in place.

8. Place the contact support drive slot over the drive

tang and tighten switch mounting screws.

9. Splice wiring harness to switch wiring.

10.
Install trim plate assembly and shift lever control

knob.

11.
Connect shift lever arm to the transmission control

Fig.
30 - Backing Lamp Switch on Transmission

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-19

VIEW A
•CONTACT SUPPORT

DRIVE SLOT IN LINE

WITH HOLE IN SWITCH

PAWL
CONTACT POINT B

CONTACT SUPPORT

DRIVE SLOT IN LINE

WITH HOLE IN SWITCH

FLOOR SHIFT

(EXCEPT CAMARO)
COLUMN SH

Fig.
31 - Neutral Safety Switches

PARKING BRAKE ALARM SWITCH REPLACEMENT

Corvette (Fig. 33)

1.
Remove seat belt retainer and parking brake cover

assembly from center console.

2.
Disconnect wire from brake alarm switch.

3.
Remove retaining screw and switch from

reinforcement.

4.
Position new switch to reinforcement and install re-

taining screw.

5. Connect switch wire and check operation of switch.

6. Install cover and seat belt retainer assembly.

Chevrolet, Chevelle, Chevy II and Camaro (Fig. 34)

1.
Disconnect wiring connector at switch terminal.

2.
Remove nut and lock washer or retaining bolt and

disengage switch from brace.

3.
To install, reverse removal procedure.

INSTRUMENT PANEL COMPARTMENT

LAMP/SWITCH REPLACEMENT

1.
Disconnect battery ground cable.

2.
Reach into glove box, depress bulb in end of switch
and turn counterclockwise to remove bulb.

3..
Remove switch from socket. Carefully detach wire

and terminal from switch.

NOTE:
On some model switches, the wire and

terminal cannot be detached from the switch

making it necessary to cut and splice the switch

wire.

4.
Insert wire and terminal into new switch.

5. Push switch into place and install bulb by setting it in

place, depressing and turning it clockwise.

CIGARETTE LIGHTER REPLACEMENT

Chevrolet, Chevy II, Camaro and Corvette (Fig. 23)

1.
Disconnect battery ground cable.

2.
Disconnect wire connector at rear of lighter unit

under dash.

3.
Remove retainer from rear of housing assembly and

disengage lighter unit from panel.

4.
To install, reverse removal procedure.

Chevelle (Fig. 35)

1.
Disconnect battery ground cable.

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-21

2.
Remove ash tray, retainer attaching screws and

retainer.

3.
Remove Air Conditioning distributor
duct'
retaining

screws and duct.

4.
Remove heater and/or Air Conditioning control panel

assembly retaining screws and push panel assembly

from console.

NOTE:
If interference between control panel

and radio is encountered, loosen radio retaining

nuts.

5. Remove radio control knobs, bezels and retaining

nuts.

6. Disconnect radio wiring harness and antenna lead-in.

7. Remove radio rear brace attaching screw and re-

move ra(Jio from vehicle.

8. Remove ignition switch bezel nut using Tool J-7607

and push switch rearward.

9. Disconnect cigarette wiring connector.

10.
Remove cigarette lighter retainer and lighter as-

sembly from console.

11.
To install, reverse removal procedure.
Fig.
35 - Cigarette Lighter — Chevelle

CHEVROLET INSTRUMENTS AND GAUGES

INDEX

Page

General Description 12-21

Service Operations 12-22

Instrument Cluster........................ 12-22

Instrument Cluster Lamps 12-22

Printed Circuit .
* •
12-22

Speedometer 12-22

Speedometer Cable 12-23

Fuel Gauge 12-23
Page

Clock 12-24

Tachometer 12-24

Ammeter . . 12-24

Temperature Gauge 12-24

Oil Pressure Gauge 12-24

Oil Pressure Indicator 12-24

Generator Indicator 12-26

Temperature Indicator 12-26

GENERAL DESCRIPTION

The standard instrument cluster on all models contains

seven circular housings consisting of: a speedometer;

fuel gauge; oil pressure, generator and temperature indi-

cators; right and left directional signal indicators; brake

warning and high beam indicators; and includes a clock

on deluxe models. An optionally available instrument

cluster provides special instrumentation which includes

in addition to the speedometer and clock: a tachometer;

fuel, oil pressure, ammeter and engine temperature

gauges; which replace the standard fuel gauge and indi-

cator lights. The brake warning indicator is relocated

to the tachometer dial face and the high beam and direc-

tional indicators are positioned in the speedometer dial

face.

Instrument cluster removal is recommended before at-

tempting to service the printed circuit and gauges even

though some units may be accessible from behind the

cluster. Limited working space under the instrument

panel increases the possibility of electrical malfunctions

due to poor connections, and damaged or improperly in-

stalled printed circuit. The printed circuit is service-

able but not repairable and requires complete
replacement.

The brake warning light serves a dual purpose. It

functions as an indicator when the parking brake is ap-

plied and also warns if a malfunction (loss of hydraulic

pressure) should occur in the brake system. The two

separate switches, which provide the signal to operate the

indicator, are located at the parking brake support and in

the hydraulic brake line at the master cylinder. Service

of the brake pressure, differential switch unit at the

master cylinder is described in Section 5 of this manual.

All indicator and cluster illumihating lamps may be

replaced without removing the cluster from the vehicle.

The bulbs are installed in plastic holders which lock into

the cluster housing and make contact with the printed

circuit. An instrument lamp is used to illuminate the

ignition switch. A special fibre optic lucite wiring

transmits light from the lamp to the switch.

Regular maintenance is not required on the instrument

cluster or its components other than maintaining clean,

tight electrical connections, replacing defective parts and

keeping the speedometer cable properly lubricated.

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-22

SERVICE OPERATIONS

INSTRUMENT CLUSTER

Removal and Installation (Figs. 36 thru 40)

I. Disconnect battery ground cable.

2:
Remove four screws retaining instrument bezel to

top edge of instrument console. Disengage tabs on

bezel lower section from clips on instrument console

and remove bezel.

3.
Protect mast jacket to prevent scratching when re-

moving cluster assembly.

4.
Remove eight screws securing leading edges of in-

strument cluster to console and pull cluster forward

from console opening.

5. Reaching behind cluster disconnect speedometer ca-

ble,
chassis harness connector, clock and speed

warning device connections (if so equipped) at rear of

cluster.

NOTE:
On models- with gauge pack, disconnect

oil pressure line also.

6. When all disconnects are made, remove cluster as-

sembly from vehicle.

7. To install, position cluster assembly to console

opening and connect speedometer cable, chassis

harness connector and other electrical connections

as required.

8. Position cluster in console opening and install eight

retaining screws.

NOTE:
Make sure ground strap between

cluster case and center right lower attachment

is properly installed.

9. Engage tabs on instrument bezel with clips on con-

sole and position bezel in console opening, then in-

stall four retaining screws.

10.
Install speed warning device control attaching nut and

knob,
if so equipped.

II.
Connect battery ground cable and check operation of

cluster assembly.

Fig. 36 - Instrument Cluster Installation — Chevrolet
Fig. 37 - Speed Warning Device

INSTRUMENT CLUSTER LAMP REPLACEMENT

(Figs.
38 and 39)

1.
Rotate socket counterclockwise to remove from rear

of cluster housing.

2.
To remove bulb, if socket is black color, pull bulb

straight out. If socket is gray color, depress and

rotate bulb, then pull out.

3.
Install replacement bulb in socket, pressing inward

to lock in place.

4.
Insert socket into housing, with lugs entering notches

in case, and rotate clockwise to lock in place.

PRINTED CIRCUIT REPLACEMENT (Figs. 38 and 39)

1.
Remove instrument cluster as previously described

in this section.

2.
Remove all cluster illuminating and indicator lights

from cluster housing.

3.
Remove fuel gauge and clock terminal nuts securing

printed circuit to housing.

4.
Remove four hex head screws retaining printed cir-

cuit to the cluster housing and remove the printed

circuit. . .

5. To install, reverse removal procedure.

CAUTION:. The retaining screws and terminal

nuts are part of the grounding circuit and must

be installed to provide the proper ground con-

nections for the printed circuit.

SPEEDOMETER
REPLACEMENT

1.
Remove instrument cluster as previously described

in this section.

2.
Remove screws retaining rear cover to the cluster

assembly. Bend ground strap away from cover and

remove cover.

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY
AND
CHASSIS
12-26

•
Low oil
pressure

• High engine temperature

• Defective wiring
or
switch

connector from sender

in block above starter
on

and
at
left front
of
distributor
on V-8
Sending Unit Replacement

1.
Disconnect wiring harness

unit terminal (located

L-6 engines

engines).

2.
Remove sender unit using Tool J-21757
or 12
point

socket, replace with
new
unit
and
check operation.

GENERATOR INDICATOR

1.
Ignition
on,
Engine
not
Running
and
Telltale Light

Off.

• Indicator bulb burned out, replace bulb.

• Open circuit
or
loose connection
in the
telltale

light circuit.

2.
telltale Light Stays
on
after Engine
is
Started.
If indicator light does
not go out at
engine idle

speed, refer
to
Charging Systems under Engine

Electrical, Section
6Y.

TEMPERATURE (COOLING SYSTEM) INDICATOR

The temperature indicator circuit consists
of two re-

motely located units, indicator gauge
and
engine sender

unit.
The
indicator gauge, located
in the
instrument

panel, consists
of a
red light which will indicate
an
over-

heated engine condition.

Engine Sender Unit Replacement

1.
Drain engine cooling system
to a
level below unit.

2.
Remove sender unit (located
in the
inlet manifold

near water pump housing
on V-8
engines and
in the

cylinder head near
an
exhaust port
oh L-6
engines)

and replace with new unit.

3.
Refill cooling system
and
check operation
of
unit.

CHEVELLE INSTRUMENTS AND GAUGES

INDEX

Page

General Description
* *
i2-26

Service Operations
12-26

Instrument Panel
12-26

Instrument Cluster.
12-26

Fuel Gauge and/or Ammeter
12-27

Clock,
i 12-27

Speedometer
12-27
Page

Speedometer Cable
.
. 12-27

Temperature Gauge
12-29

Oil Pressure Gauge
12-29

Indicator Lights.
. 12-29

Oil Pressure Indicator
12-29

Generator Indicator
. . 12-29

• Temperature Indicator
12-29

GENERAL DESCRIPTION

The Chevelle instrument cluster assembly consists
of:

a speedometer;
a
fuel gauge;
a
generator,
an
engine
tem-

perature and an
oil
pressure indicator lamp, and includes

a clock
on
deluxe models.
On
super sport models,
am-

meter, coolant temperature
and oil
pressure gauges
re-

place
the
appropriate indicator lights. Except
for the

speedometer,
all of the
indicator lamps, instruments
and

gauges
of
these clusters may
be
serviced without remov-

ing
the
instrument cluster assembly from
the
vehicle.

In addition
to the
instrument indicator lamps,
a
brake

warning lamp
is
included
in the
cluster
as
standard

equipment.
The
indicator
is
connected
to the
parking
brake
and
brake pressure differential switches
and

serves
a
dual function.
It
lights when the parking brake

is applied
and
also when
the
brake pedal
is
applied,
if a

malfunction should occur
in the
brake system
due to a

loss
of
hydraulic pressure. Servicing
of the
hydraulic

pressure differential switch
is
covered
in
Section
5 of

this manual.

Regular maintenance
is not
required on the instrument

cjLuster
or its
components other than maintaining dean

and tight electrical connections, replacing defective parts

and keeping
the
speedometer cable properly lubricated.

SERVICE OPERATIONS

INSTRUMENT PANEL ASSEMBLY

INSTRUMENT CLUSTER (Figs.
41
thru
44)

Removal

1.
Disconnect battery ground cable.

2.
Remove steering coupling bolt and disconnect steer-

ing shaft from coupling.

3.
Loosen mast jacket lower clamp.

4.
Remove
air
conditioning center distributor duct
(if

so equipped).

5. Remove radio rear support bracket screw.

6. Remove mast jacket upper support clamp and retain-

ing bolts from lower support (refer
to
Section
9,

Steering).
CAUTION: Cover mast jacket
and
parl

brake handle with
a
suitable material
to
prevc

scratching.

7.
Disconnect speedometer cable
at
rear
of
cluster

housing
and
speed warning control knob
at
panel
(if

so equipped).

8. Remove instrument panel retaining screws (nine

upper and five lower).
.

9. Working under the console remove four lower retain-

ing screws from instrument cluster housing.

10.
Pull instrument panel assembly from console and
lay

forward on mast jacket.

11.
Disconnect wiring harness, cluster lamps and wiring

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-29

Fig.
43b - Speed Warning Device

TEMPERATURE AND/OR OIL PRESSURE

GAUGE

1.
Disconnect battery ground cable.

2.
Remove ash tray and ash tray retainer.

3.
Disconnect A/C hose from the distributor duct.

4.
Disconnect wiring connectors and lamp bulbs from

rear of gauge.

5. Disconnect oil pressure pipe fitting from rear of oil

pressure gauge.

6. Remove (3) screws retaining gauge assembly to

cluster cover and disengage unit from cover.

7. Remove (4) retaining nuts and remove gauge from

template.

8. To install, reverse removal procedure.

INDICATOR LIGHT REPLACEMENT

To replace any indicator or cluster bulb, unsnap the

proper socket from rear of instrument cluster, remove

and replace bulb, and reinsert unit into rear of cluster

housing.
OIL PRESSURE INDICATOR

If the light does not come on when the ignition switch is

turned on, or if the light comes on and remains on after

the engine is started, one or more the following condi-

tions is indicated:

• Low oil pressure

• Defective wiring or switch

• High engine temperature

Switch Replacement

1.
Disconnect wiring harness connector from sender

unit terminal (located in block above starter on L-6

engines and at left front of distributor on V-8

engines).

2.
Remove sender unit using Tool J-21757, replace with

new unit, and check operation.

GENERATOR INDICATOR

Ignition on, Engine not Running and

Telltale Light Off

1.
Indicator bulb burned out, replace bulb.

2.
Open circuit or loose connection in the telltale light

circuit.

Telltale Light Stays on after Engine is Started

If indicator light does not go out at engine idle speed,

refer to' Charging Systems under Engine Electrical,

Section 6Y.

TEMPERATURE
(COOLING
SYSTEM)
INDICATOR

The temperature indicator circuit, consists of two re-

motely located units, indicator gauge and engine sender

unit. The indicator gauge on all models uses a single

red light to indicate an overheated engine condition.

Engine Sender Unit Replacement

1.
Drain engine cooling system to a level below unit.

2.
Remove sender unit (located in the inlet manifold

near water pump housing on V-8 engines and in the

cylinder head near an exhaust port on L-6 engines)

and replace with new unit.

3.
Refill cooling system and check operation of unit.

CHEVROLET CHASSIS SERVICE MANUAL