battery replacement CHEVROLET CAMARO 1967 1.G Chassis Owner's Guide

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 12-22

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 12-27

Fig.
41 - Instrument Panel Installation — Chevelle

terminals from rear of cluster assembly (figs. 43

and 44).

12.
Remove four screws retaining upper section of dus-

ter housing to panel and remove cluster from the in-

strument panel and to a suitable working area for

necessary service (fig. 42).

Installation

1.
Position cluster assembly to rear of panel and install

four upper retaining screws.

2.
Connect cluster lamps, wiring connectors and wiring

harness assembly to the cluster assembly.

3.
Position instrument panel assembly into console

(hold panel at center and install center screws) and

install upper and lower retaining screws.

NOTE:
At this point temporarily reconnect

battery and check operation of cluster.

4.
Working under the console, install four lower screws

retaining lower section of cluster cover to rear of

panel.

5. Install radio brace screw at rear of radio.

6. Connect speedometer cable to speedometer and speed

warning device control knob.

7. Install A/C distributor duct and connect A/C hoses to

duct (if so equipped).

8. Install mast jacket upper support clamp.

9. Position steering shaft in the steering coupling and

install retaining bolt.

10.
Tighten mast jacket lower clamp (refer to Steering,

Section 9 for spring tension adjustment).

11.
Connect battery ground cable.

FUEL GAUGE AND/OR AMMETER

REPLACEMENT

1.
Disconnect battery ground cable.

2.
On air conditioned models, disconnect hose and re-

move air outlet from panel.

3.
Disconnect wiring connectors and cluster lamps from

rear of gauge assembly.

4.
Remove mounting plate retaining screws (3) and re-
move fuel gauge from rear of cluster housing.

5. Remove terminal nuts (3) securing gauge to template

and replace gauge.

6. To install, reverse the removal procedure.

CLOCK REPLACEMENT

1.
Disconnect battery ground cable.

2.
Remove clock set shaft knob retaining nut and knob.

3.
Disconnect wiring connector at clock terminal and

cluster lamp from clock housing. On A/C models,

disconnect hose from air distributor duct.

4.
Remove two screws retaining clock housing to

cluster cover and remove clock.

5. To install, reverse removal procedure.

SPEEDOMETER REPLACEMENT

1.
Disconnect battery ground cable.

2.
Remove instrument cluster assembly as previously

outlined in this section.

3.
Remove screws (8) attaching cover to rear of cluster

housing.

4.
Remove two screws attaching speedometer assembly

to cluster cover and carefully remove speedometer

head.

NOTE:
Servicing of the speedometer assembly

should be performed by an authorized
AC
speed-

ometer service station.

5. To install, reverse removal procedure.

SPEEDOMETER CABLE

Replacement or Lubrication

1.
Disconnect the speedometer cable from the speedom-

eter head. Remove the old cable by pulling it out

from speedometer
, end
of conduit.

NOTE:
If old cable is broken it may be neces-

sary to remove lower piece from transmission

end of conduit.

2.
Lubricate the lower 3/4 of cable with speedometer

cable lubricant and push the cable into the conduit.

Connect the upper end to the speedometer head and

road test vehicle for proper speedometer operation.

Fig.
42 - Instrument Cluster Installation

CHEVROLET CHASSIS SEtVKE 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

ELECTRICAL-BODY AND CHASSIS 12-32

Fig.
47-
Instrument Clyster Wiring

1.
Instrument Cluster Bulb

2.
R.H. Directional Indicator

3. Bright Indicator

4.
Gen Indicator
5. Temp Indicator

6. Oil Indicator

7. L.H. Directional Indicator
8. Fuel Gauge Connector

9. Instrument Panel Wiring

Harness
10.
Clock Assembly (11700-800)

11.
Cover (exc. 11700-800)

12.
Plate (exc. 11700-800)

13.
Brake Alarm
indicator

wise wiring and lamp connections may be

damaged."~ ' ""

6. To install, position cluster to console opening and

connect all wiring and lamp connections.

7. Position cluster in console and attach speedometer

cable to the speedometer head.

8. Install eight screws retaining cluster to console.

9. Install mast jack upper clamp assembly.

10.
Connect battery ground cable and check operation of

instruments and gauges.

FUEL GAUGE REPLACEMENT

1.
Disconnect battery ground cable.

2.
Disconnect cluster lamp and wiring harness connec-
5.
tions at rear of gauge.

Remove two screws retaining gauge to rear of

cluster housing and remove gauge from housing.

Remove terminal nuts attaching gauge unit to cover

plate and remove unit, from plate.

To install, reverse the removal procedure*

CLOCK REPLACEMENT

1.
Disconnect battery ground cable.

2.
Remove clock set shaft, knob retaining screw and

knob from set shaft.

3.
Disconnect wiring and lamp connections "from rear

o£ clock.

4.
Remove two screws attaching clock to rear of hous-

ing and remove clock from cluster housing.

CHevnou-r ousst

ELECTRICAL-BODY AND CHASSIS 12-35

SERVICE OPERATIONS

INSTRUMENT CLUSTER

REMOVAL AND INSTALLATION (Fig. 49)

1.
Remove mast jacket assembly. Refer to Section 9

for removal procedures.

2.
Disconnect tachometer drive cable at distributor.

3.
Disconnect the headlamp panel control switch from

instrument cluster.

4.
Remove lighting switch as outlined in this section.

10 10-A 1112 13

14
15 16 17 18 19

Fig.
49- Instrument Cluster Connections

1.
Cluster Illuminating

Bulbs

2.
Direction Signal Indicator

Bulb L.H.

3. Direction Signal Indicator

BulbR.H.

4.
Headlamp Actuating Motor

Indicator

5. Headlamp Hi Beam

Indicator

6. Parking Brake Alarm

Indicator

7. Ground Lead Attaching

Point

8. Temperature Indicator
"1"

Terminal
9.

10.

10A.

11.

12.

13.

14.

]5.

16.

17.

18.

19.

20.

21.
Temperature Indicator "S"

Terminal

Ignition Switch Receptacle

ignition Switch Illuminating

Bulb

Oil Pressure Indicator

Tachometer

Lighter Receptacle

Trip Odometer

Wiper Switch Receptacle

Speedometer

Ammeter "Gen" Terminal

Ammeter "Battery" Terminal

Lighting Switch Receptacle

Fuel Gauge
"1"
Terminal

Fuel Gauge "S" Terminal

5. Remove the ignition switch. Refer to Section 6Y

for removal procedure. Then disconnect ignition

switch lamp support at instrument panel.

6. Disconnect oil pressure line at oil pressure gauge

then remove the lead wires from ammeter, wiper

switch and cigarette lighter. Disconnect trip odom-

eter at mast jacket support.

7. Remove the instrument cluster-to-dash retaining

screws and pull cluster assembly slightly forward

to obtain clearance for removal of speedometer

cable, tachometer cable, cluster ground wire, fuel

gauge lead wires and remaining indicator and cluster

illuminating lamps.

8. To install cluster in dash panel, reverse removal

procedure.

FUEL GAUGE

The gasoline fuel gauge circuit consists of an electri-
cal indicator in the instrument cluster and a float-

controlled rheostat in the fuel tank.

Since the fuel gauge consists of two remotely located

units and connecting wires, it is sometimes difficult to

determine which unit is at fault when the gauge fails to

operate properly. Cluster removal is necessary to re-

place the fuel gauge.

NOTE:
Be sure to check gas gauge fuse in fuse

panel before attempting to trouble shoot for

inoperative gauge or tank sending unit.

SPEEDOMETER AND/OR TACHOMETER

Removal and Installation

Cluster must be removed from vehicle to service

speedometer head assembly (see Cluster Removal pro-

cedure)
.
With cluster removed from vehicle:

1.
Remove five screws securing cluster back panel to

cluster assembly; separate the parts carefully.

CAUTION: Care must be used to avoid marring

instrument cluster face.

2.
Remove two screws securing speedometer or ta-

chometer head to cluster back panel; carefully re-

move speedometer or tachometer head.

NOTE:
Servicing of speedometer or tachom-

eter head should be performed by an authorized

AC service station.

3.
Reverse above procedure to install speedometer.

Cable Replacement or Lubrication

1.
Disconnect the. cable from the speedometer or ta-

chometer head. Remove the old cable by pulling it

out from speedometer end of conduit.

NOTE:
If old cable is broken it may be nec-

essary to remove lower piece from transmission

or distributor end of conduit as applicable.

2.
Lubricate the lower 3/4 of cable with
AC
speedom-

eter cable lubricant and push the cable into the con-

duit. Connect the upper end to the speedometer or

tachometer head and road test vehicle for proper

operation.

TEMPERATURE GAUGE

The temperature indicator requires very little service

other than testing for malfunctioning and replacing de-

fective units. Cluster must be removed to service tem-

perature gauge.

Do not attempt to repair either the engine unit or the

gauge. When installing new engine unit, do not use

thread compound on unit threads, as this will increase

electrical resistance of unit and cause faulty reading

on gauge.

AMMETER OR OIL PRESSURE GAUGE

The ammeter or oil pressure gauge requires very

little attention other than keeping ammeter terminals

clean and tight. If the oil pressure control line should

become restricted it should be blown out or replaced.

Cluster must be removed to service these gauges.

HftVKI MANUAL

ELECTRICAL-BODY
AND
CHASSIS
12-36

CAMARO INSTRUMENTS AND GAUGES

INDEX

Page

General Description
12-36

Service Operations
12-36

Instrument Cluster
. . . 12-36

Instrument Lamps
12-36

Printed Circuit
12-36

Fuel Gauge
12-37

Tachometer
. . 12-37

Seat Separator Instrument Console
12-37
Page

Fuel Gauge
12-37

Ammeter
12-37

Temperature Gauge
12-37

Oil Pressure Gauge
. 12-37

Fuel Warning Unit
12-37

Clock.
... 12-37

Oil Pressure Indicator
12-37

Generator Indicator
12-38

Temperature Indicator
12-38

GENERAL DESCRIPTION

The standard Camaro instrument cluster assembly con-

sists
of two
circular units which house
the
speedometer

and fuel gauge assemblies.
The oil
pressure, left-hand

directional
and
brake warning indicators
are
located
in

the face
of the
speedometer bezel while generator,
tem-

perature
and
right-hand directional indicators are grouped

with
the
fuel gauge unit.
The
high beam indicator
is

located between
the
cluster bezels.

A special instrumentation package
is
available with
the

eight-cylinder engine
and
center floor console combina-

tion.
The
special cluster includes:
a
clock; coolant

temperature,
oil
pressure, fuel
and
ammeter gauges,

mounted forward
on the
seat separator console;
a ta-

chometer
in the
right circular housing
of the
dash
in-

strument cluster; and
a low
fuel level indicator replacing

the
oil
pressure indicator lamp
in the
instrument cluster.

The instruments
and
gauges,
may be
serviced only

after
the
instrument cluster
is
removed from
the
vehicle.

Indicator
and
cluster lamps except
for the
high beam

indicator
may be
replaced without removing
the
cluster

assembly. Partial cluster removal
is
necessary when

replacing
the
high beam indicator due
to its
proximity
to
the upper brace
rod
anchor plate.
The
bulbs
are in-

stalled
in
plastic sockets which lock into
the
cluster

housing and make contact with
the
printed circuit.

A
low
level fuel warning system
is a
special feature

available with
the
floor console gauge pack. This
sys-

tem includes
an
indicator lamp
in the
dash cluster and
a

semi-conductor unit senses
the
change
in
electrical
re-

sistance
of the
fuel system circuitry
as
variations
in

fuel level occur.
The
sensing device
is
replaced
as a

unit
if
found defective.

The brake warning light serves
a
dual purpose.
It

functions
as an
indicator when
the
parking brake
is ap-

plied
and
also
if
there
is a
malfunction (loss
of
hydraulic

pressure)
in the
brake system. Switches which provide

the signal
to
operate
the
light
are
located
at the
parking

brake assembly
and at the
brake master cylinder
in the

hydraulic lines. Service
of the
brake pressure differ-

ential switch unit
is
covered
in
Section
5 of
this manual.

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 properly lubricated.

SERVICE OPERATIONS

INSTRUMENT CLUSTER (Figs.
50
thru
53)

Removal
and
Installation

1.
Disconnect battery ground cable.

2.
Remove mast jacket lower support screws
at toe
pan.

3.
Remove mast jacket upper support bolts
and
allow

steering wheel
to
rest
on
seat cushion.

CAUTION: Both supports must
be
detached
to

prevent distortion
of
mast jacket.

4.
Remove cluster attaching screws from face
of
panel

and partially remove assembly from console opening.

5. Reaching behind cluster assembly, disconnect speed-

ometer cable, speed warning device
(if so
equipped
-

Fig.
51) and
chassis harness connector
at
rear
of

panel.

6. Remove assembly from console opening to
a
suitable

bench area
for
required service operations.

7.
To
install, reverse removal procedure.

INSTRUMENT CLUSTER LAMP REPLACEMENT

1.
Turn bulb holder counterclockwise
and
pull
out to

remove from
the
cluster housing.
2.
Pull bulb straight out
to
remove from socket.

3.
Press replacement bulb inward
to
lock
in
socket.

4.
Insert lamp assembly into housing, with lugs
on

holder entering notches
in
housing,
and
turn clock-

wise
to
lock
in
place.

PRINTED CIRCUIT REPLACEMENT

1.
Remove instrument cluster
as
previously described

in this section.

2.
Remove
all
cluster illuminating and indicator lamps

from housing.

3.
Remove fuel gauge terminal nuts
or
tachometer
re-

taining nuts securing printed circuit
to
housing.

4.
Remove four
hex
head screws retaining printed
cir-

cuit
to the
cluster housing
and
remove circuit from

housing.

5.
To
install, reverse removal procedure.

CAUTION:
The
retaining screws
are
part
of

the grounding circuit
and
must
be
installed
to

provide proper connections
for the
printed
eir-

cuit.

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-37

Fig.
50 - Instrument Cluster Installation — Camaro

FUEL GAUGE REPLACEMENT

1.
Remove instrument cluster assembly as previously

described.

2.
Remove cluster lamps from gauge cover plate,

ground screw and terminal nuts attaching printed

circuit to fuel gauge.

3.
Remove three screws retaining gauge assembly to

cluster housing.

4.
Carefully move printed circuit away from gauge and

remove gauge assembly from cluster housing.

5. Remove terminal nuts securing gauge to cover plate,

and detach gauge unit.

6. To install, reverse removal procedure.

TACHOMETER

NOTE:
The tachometer is a self-contained, all

transistor unit requiring very little service

other than keeping the terminal nuts clean and

tight. The unit is not serviceable and must be

replaced, if defective.

1.
Remove instrument cluster as previously described

in this section.

2.
Remove cluster lamps from rear of gauge cover and

disconnect harness wiring connections from gauge

terminals.

3.
Remove three screws retaining gauge to cluster

housing.

4.
Move printed circuit away from gauge area and re-

move gauge unit from housing.

5. Remove terminal nuts securing gauge to cover

detach unit.

6. To install, reverse removal procedure.

SEAT SEPARATOR INSTRUMENT CONSOLE

(Fig.
54)
(Fuel,
Ammeter, Temperature, Oil Pressure Gauges,

Low Fuel Warning Unit, and Clock)

1.
Disconnect battery ground cable.

2.
Remove clock shaft knob from face of cluster.

3.
Remove cover retaining screws (4) and cover from

cluster assembly.

NOTE:
Use an alien wrench to remove the two

screws located in the top of the cover below the

instrument console.

4.
Remove four screws retaining gauge mounting plate

to cluster housing.

5. Carefully disengage gauge plate from housing and

disconnect oil pipe and all electrical connections at

rear of gauges.

NOTE:
At this point, with gauge package re-

moval from housing all gauges including the low

fuel warning system may easily be serviced.

6. To install assembly, use reverse of removal

procedure.

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 of the following

conditions is indicated.

• Low oil pressure

• Defective wiring or switch

Sending Unit 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).

Fig.
51 - Speed Warning Device

CHEVROLET CHASSIS SERVICE MANUAL

ELECTRICAL-BODY AND CHASSIS 12-41

HAZARD WARNING

SWITCHES

Fig.
55- Directional Signal Switches

erating six to eight lamps simultaneously depending ve-

hicle series and model.

DIRECTIONAL SIGNAL SWITCH REPLACEMENT

All steering columns except tilt and telescoping.

Chevrolet, Chevelle, Chevy II and Camaro (Fig. 56)

1.
Disconnect battery ground cable.

2.
Disconnect signal switch wiring from chassis har-

ness at multiple connector under instrument panel.

3.
Remove steering wheel assembly as outlined in Sec-

tion 9, Steering.

4.
Remove shift lever roll pin and shift lever from

column (if applicable).

5. Push in hazard warning switch knob and unscrew

knob.
Remove switch lever arm.

6. On Chevy U and Camaro models equipped with auto-

matic transmission remove column mounted dial in-

dicator housing and lamp assembly (if applicable).

7. Remove mast jacket lower trim cover retaining

screws and remove trim cover(s).

8. On Chevrolet and Chevelle models equipped with

automatic transmission loosen set screw and remove

quadrant dial pointer (if applicable).

9. Remove retaining
"C"
ring from upper steering shaft

using snap ring remover Tool J-22569 (Refer to

Steering, Section 9). Slide thrust and wave washers

from steering shaft.
10.
Loosen three signal switch mounting screws until

assembly can be rotated counterclockwise.

NOTE:
Do not remove three screws from as-

sembly until unit is on the bench.

11.
Rotate switch assembly counterclockwise and pull

unit from top of mast jacket. Allow unit to hang

from end of column.

Fig.
56 - Standard Steering Column

CHEVROLET CHASSIS SERVICE