fuel DATSUN PICK-UP 1977 Manual Online

Engine
Control
Fuel
Exhaust

Systems

REMOVAL

Non
California
models

I
Remove
exhaust
tube
U

bolt

clamp

2

Break
sealant
off
at
front
tube
to

main
muffler

connectio
n

3
Remove
rear
tube

mounting
bolt

and

remove
muffler

assembly
with

rear

tube

4
Remove

front
tube
heat

insulator

5

Remove
nuts

securing
front
tube

to
exhaust
manifold
and

remove
front

tube

mounting
bolts
Then
detach

front
tube

When

disconnecting
the
exhaust

tube

connections

pay
attention

to
the

following
point

I

Break
old

se
lant
off
at

t
1e

connection

by

lightly
tapping
around

the
tube

witlJ
a
hammer
and

twisting

muffler
See

Figures
FE

7
and
FE
8

2

Using
a
rubber
hammer

tap
on

the
front

end
of
muffler
while

pushing

it

toward
rear
The
mumer

assembly

can
then
be
taken

out
See

Figure

FE
9

FE187

Fig
FE
7

Breaking
Bealant

FEl88

Fig
FE
8

Twisting
muffler
ijl

4

FE189

Fig
FE
9

Tapping
muffler
with

Q
rubber
hammer

California
models

I
Remove

all
heat
insulators

2

Remove
exhaust
tube
U
bolt

clamp

3

Break
sealant
off
at
center
tube

to
main
muffler

connection

4

Remove
rear
tube

mounting
bolt

and
remove
muffler

assembly
with
rear

tube

5
Remove

bolts

securing

catalytic

converter
to
center
tube
and
remove

center
tube

mounting
bolts

Then
detach
center
tube

6
Remove
bolts
and
nuts

securing

catalytic
converter
to
front
tube
and

detach

catalytic
converter

7

Remove
nuts

securing
front

tube

to
exhaust
manifold
and

remove
front

tube

mounting
bolts

Then
detach

front
tube

INSPECTION

I
Check
muffler
and
tubes
for

cracks

Qr

damage

Replace
any

part
that
is

damaged

beyond
limits

2

Replace
bracket
and

mounting

insulator
that
are
cracked

fatigued
or

sweated

FE
8
INSTALLATION

Install
the
exhaust

system
assembly

in

reverse
order
of
removal
Observe

the

following

Notes

a
Insert
front
tube
until
it
touches

emboss

b
When
there
is

110
clearance
between

front
tube
and
floor

or

propeUer

shaft
turn
tube

along
center
line
of

tube

in
the
manifold

connecting

unit
and
obtain

proper
clearance

c
Check
all
tube
connections
for
ex

haust

gas
leaks
and
entire

system

for
unusual
noises

with

engine

running

d
After
installation
check
that

mounting
brackets
and

mounting

rubbers
are
free
from
undue
stress

If

any
of
the
above

parts
is
not

installed

properly
excessive
noises

or
vibrations

may
be
transmitted
to

the
vehicle

body

e

Tightening
torque

Exhaust
manifold
to

front
tube

nut

1
9

to
2
5

kg
m

14
to
18
ft
lb

U
bolt

securing
nut

1
9
to
2
1

kg
m

14
to
15

ft
lb

Mounting
bracket
bolt

1
0
to
1
2

kg
m

710
9
ft
lb

Front

tube

mounting
bracket

bolt

california
models

1
9

to
2
1

kg
m

14
to
15
ft
lb

Catalytic
converter
to
front

and
center
tube
bolt

California
models

3
2

to
4
3

kg
m

23
to
31
ft
Ib

If
exhaust

tubes
are

separated
at

connection

t
renew
muffler

assembly

etc
use
the
Genuine
Nissan

Sealant

Exhaust
Sealant
Kit
20720
N2225

or

equivalent
See

Figure
FE
IO
to

eliminate

gas
leakage
at
the

joint
Be

sure
to
observe
the

following

Engine
Control
Fuel
Exhaust

Systems

I

Wipe
clean
all
the

contact

por

tions
of
tube

joints
allow
them

to

dry

thoroughly

2

Temporarily
mount
in

place

muffler
assembly
as
an

assembled
unit

on
the
vehicle

3
Insert

front
tube
until
it
touches

emboss

m
b
nlfrnnjj

mm

lJ
Ij

@L
J

FE263

Fig
FE
ll
Exhawt
tube

connection

4

Torque
nut

securing
the
male
and

female

tubes
at
the
connection

Tightening
torque
is
1
6

to
2

0

kg
m

12
to
14

ft
lb

5

Squeeze

approximately
5

CC
0
31

cu
in

of
sealant
into

injection
from

sealant
tube
See

Figure
FE
12
Sealant
tube

polyethylene

Injector

Fig
FE
IO
Exhaust
sealant
kit

Be

sure
to

place
cap
back
to
sealant

tube
since
sealant
will

dry

Approximately

5
cc

0
31
Cll
in

FE1l1

Fig
FE
12

Squeezing
sealant
to

injec
tor

6

Position
nozzle
of

injector
to
the

guide
and

press
it

there

firmly
Inject

sealant

slowly
until
sealant
begins
to

flow
out

of
the
slit
of
tube
This

indicates

that
the
bead

requires
no

further
sealant
Excessive
sealant
can

cause
a

clogged
tube

See

Figure

FE

13

After

injecting
wash

injector

thoroughly
in
clean

water
to
remove

all
traces

of
sealant

FE191

Fig
FE
13
Injecting
sealant

FE
9
7
Start

engine
and
let
it
idle

slowly

for
ten
minutes

minimum
to

hilfden

sealant
with
the
heat
of
exhaust

gas

8
Check
the

condition
of

sealant

before

driving
the
vehicle
It

is
also

essential
that
the

vehicle
should
not

be

accelerated

sharply
for
20
to
30

minutes

subsequent
to
this

operation

Noles

a
The
sealant

should
be
used
within

guaranty
term
indicated
on
the

kit

case

b

Exposure
of
sealant
to
the
skin

may

cause
a

rash
Wash
sealant
off
the

skin
with
water

c
Do
not

keep
the

sealant
tube
in

a

place
where
the
ambient

tempera

ture
is

above
400C
I040F
A

sealant
hardened
above
4QoC

I040F
cannot
be
used
The
most

suitable

storage
temperature
is

from

15
to
350C
59
to
950F
If
sealant

becomes
hardened
because
of
low

temperatures
wann
the
sealant

tube
with
lukewarm
water
until
the

sealant
is

softened
Do
not
warm

tube

at
a

temperature
over
400C

1040F
for
a

long
time

d

Thoroughly
read
the
instruction

sheet
furnished
with
the
kit
before

using
the
sealant
i

CAB
BODY
Body
Frame

Ist

mounting
2nd

mounting

1
Bolt

2

Plain

washer

3
Rubber
washer

4

Upper
rubber

5
Bottom

rubber

6
Plain
w

er

7

Upper
washer

8

Lower
washer

1st

mounting

REMOVAL

AND

INSTALLATION

Remove

battery
from

engine

compartment

2

Disconnect
oil
cooler
hoses
from

radiator
automatic
transmission

model

only

3

Disconnect
air
conditioner

tubes

from

condenser
if
so

equipped

4

Drain
water
from

cooling
system

completely
and
remove
radiator

and

condenser
if
so

equipped

5

Remove

engine
hood
from
hood

hinges
after

scribing
hood
for
rein

stallation

6
Remove

bumper
stay
from
frame

and
remove
front

bumper

7
Remove

radiator

grille

8
With
the

aid
of

Steering
Wheel

Puller

ST27
180001
remove

steering

wheel
from

steering
shaft

9

Remove

steering

gear
arm
from

steering
sector
shaft

using
suitable

puller

10

Remove
screws

securing

steering

shaft
dust

seat
and
insulator
in

posi

tion
2nd

mounting

3rd

mounting

II

Remove

steering
gear

housing

from
frame
and

pull
it
out
into

engine

compartment

12

Disconnect

speedometer
cable
at

transmission

1
3

Disconnect

carbon
canister

hoses

between

canister
to

vacuum

gallery
and
canister

to
intake

manifold

at
canister

14

Disconnect
air

pump
to
air

pump
air

cleaner
hose
at
air
cleaner

15

Disconnect
air
conditioner

hoses

from

compressor
if
so

equipped

16

Disconnect
air
cleaner

duct
from

body

17

Disconnect

Master
Vac
vacuum

hose
at
intake

manifold

18
Remove

snap
ring
and
control

lever

pin
from
transmission

striking

guide
and

remove
control
lever

19
Disconnect
fuel

hoses
at
fuel

strainer

20
Disconnect
fuel

return
hose

and

evaporation
hose
at
connectors

21
Disconnect
brake
and
clutch

tubes

from
each

master

cylinder

22
Remove

all

clips
securing
fuel

tubes
brake

tubes
and
clutch
tube
at

cab

body

BF
4
BF472A

Unit
mm
in

Fig
BF
4
Cab

body
mountings

23
Loosen
hand
brake
control
cable

at
brake
control
lever

Then
discon

nect
cable
from
dash

panel

Note

Place
blocks

against
front
and

rear
wheels
to

prevent
vehicle
from

rolling
off

accidentally

24
Free

accelerator
wire
from

car

buretor

25
Disconnect

heater
hoses
at

engine
side

26
Disconnect
wire
harnesses
from

related

engine
electrical

parts

27
Disconnect

engine
and

chassis

harnesses
at
their
connection

on

right

sidemember
near

rear

engine
mounting

member

28
Remove
six

bolts

securing
body

to
frame

29
With
the
use
of
suitable

ropes

and
an
overhead
hoist
lift
cab

body

straight
up

slowly
and

place
it
on
a

level
surface

Note
In

lifting
up
cab

body
use

care

not
to

dash
it

against

engine
or
rear

body
Cab

body

weighs
approxi

mately
220

kg
485
Ib

Body
Frame

30

For
installation

reverse
above

steps
However
observe

the

following

instructions

i
If
the
cab

body
is

to
be

replaced

note

position
and

location
of
insula

tors
and
washers
used

See

Figure

BF
4

2

Adjust
hand

brake
stroke

pro

perly

3

Air
bleed
brake

and
clutch

system

thorougWy

Cab

body
to
frame

mounting

bolt

torque

1

6
to
2
2

kg
m

12

to
16
ft
Ib
o
i

k

q

1Q
j

b

crru
V

J
8F630

rr

1

4
n
Fig
BF
5

Lifting

up
cab

body

REAR

BODY

1

Bolster

2

Shim
B

3
Bolster

4

Shim
A

5

Frame

6
Rubber
washer

7
Plain
washer

BF664

Fig
BF
6
Rear

body
mountings

REAR
BODY

REMOVAL

AND

INSTALLATION

The
rear

body
is

securely
fastened

to
the
frame
at

eight
places
It

should

be
hoisted
after
the
fuel
tank
is

re

moved
from

the
rear

body

Use

the

following
procedures
as
a

guide
when
removal
or

installation

of

rear

body
is

necessary

I

Apply

parking
brake

2

Disconnect
cables
from

battery

3

Disconnect
rear

combination

lamp
wiring
harness
at
connectors

4
Disconnect
fuel

hoses
from
fuel
tank
Remove
fuel
tank

from
rear

body
5

Remove

eight
rear

body

attaching

bolts

BF665

Fig
BF
7

Rear

body
mountings

BF
5

Body
Electrical

System

METERS
AND

GAUGES

COMBINATION
METER

COMBINATION
METER
CIRCUIT

DIAGRAM

REMOVAL
AND

INSTALLATION

SPEEDOMETER

REMOVAL
AND

INSTALLATION

ODOMETER
SWITCH

REMOVAL
AND

INSTALLATION

FUEL
GAUGE
AND

WATER
TEMPERATURE

GAUGE

DESCRIPTION

REMOVAL
AND

INSTALLATION

OIL

PRESSURE
WARNING
LAMP

DESCRIPTION

01
L

PRESSURE
SWITCH

COMBINATION

METER

COMBINATION
METER

CIRCUIT
DIAGRAM

@

BE6828
CONTENTS

BE
14

BE
14

BE
16

BE
16

BE
16

BE
16

8E
16

BE
16

BE
16

BE
16

8E
17

BE
17

BE
17

Turn

signal

indicator

lamp

L
H

OIL

0

BEAM

BE
14
Meter
illumination

lamps

M
T

only

9

9
Turn

sq
nal

indicator

lamp

lL
J
R
H

Tj

O
iJ

I
l

g
r
i
o

I

l8

J
CHARGE

WARNING
LAMP

DESCRIPTION

HAND

BRAKE
WARNING
LAMP

DESCRIPTION

HAND
BRAKE

SWITCH

METER

ILLUMINATION

INDICATOR

AND

WARNING
BULBS

REMOVAL
AND

INSTALLATION

8ULB

SPECIFICATIONS

TROUBLE

DIAGNOSES
AND

CORRECTIONS

SPEEDOMETER

WATER
TEMPERATURE

AND
FUEL

GAUGES

OIL

PRESSURE
AND

CHARGE
WARNING

LAMPS

Voltage

regulator

TEMP

FUEL
CHG

0

BRK

C

I

Speedometer

2
Thermometer

3
Fuel
meter

4
Tachometer

Option

5

Cluster
lid

6

Speedometer
cable

7

Speed
switch

amplifier

Manual
transmission

only
BE
17

BE
17

BE
18

BE
18

8E
18

8E
18

BE
18

BE
18

BE
18

BE
18

BE
19

BE
20

Q
Speed

switch

BE856A

Fig
BE

21
Ci1
Cuit

diagram
of
combination

meter

Body
Electrical

System

Circuit

diagram
of
combination
meter

system

BATTERY

r
G
0

J

J

Z2

lIa

I

LlJ

I
Z

J

Z

a
z

J
z
Z

i

g

o
a

I
LlJ

I
ll

B

S

M

D

LIGHT

i
i
RELAY

i2i

mm

S

FROM

J

e
AMP

l1

l1

J
J

00

LlJLlJ

z
z

B

COO
CUT

n

SOLENOID

i

OIL

f
PRESSURE

SWITCH

THERMAL

a

TRANSMITTER

I
FUSIBLE

r
LINK
IGNITION
SWITCH

0
1
lOA

I

g

KG
lOA

r

I

15A

t

15A

i

7
5a

z

u

a
a
I

04LlJ

l1

J
o

02

u
3
FUEL
TANK

J

VOLTAGE

REGULATOR
HAND

BRAKE

SWITCH

J
Jon

0

j

Z

a

l

I
I

I
l

ll
Z

ll
Z

LlJ
LlJ

J
a
J
a

I
I

I
I

1

1

Zza
a

00

a
a

LlJLlJ

ll
ll
a
a
HAZARD

FLASHER

UNIT

L
J

HAZAR

D

SWITCH

I
OFF

ONI

l
I

I

I
2

I

I
3

I

14

61
I
5
6

16

9
I

76

I

FLASHER

UNIT

CJ

TO
LIGHT
IOFF

RELAY

B
l

TERMINAL

I

I

I

LIGHT

SWITCH
21

X
X

BEB57
A

Fig
BE
22
Circuit

diagram
of
combination

meter

ayatt
m
TURN

SIGNAL

SWITCH

I
L

RI

lFLA
I

IR
R

I

IR
L

I

IF
R
u

I

IF
L

u

I

FROM
L1GHT

RELAY
DIMMER

SWITCH

BE

15

REMOVAL
AND

INSTALLATION

I

Disconnect

battery
ground
cable

2

Working
through
meter

openings

of

cluster
lid
remove

three
screws

retaining
cluster

lid
to
instrument

panel

3

From
underneath
instrument

panel
remove
one
screw

retaining
me

ter

assembly
to
lower

panel
of
instru

ment

4

Withdraw
cluster
lid

slightly
For

ccess
to
switches
knobs
etc
follow

the

procedures

given
in

each
section

5

From
behind

combination
meter

disconnect

speedometer
cable

at

speedometer
head
and

multiple
con

nector
instrume

nt
wire

assembly

from

printed
circuit

6
On
vehicle
with
clock

disconnect

wires

at
each
connection

on
meter

printed
circuit

7
Remove
four
screws

retaining

me
ter

assembly
to
cluster
lid

8

Remov
combination
meter

as

sembly

9
When

installing
combination

me

ter

assembly
follow

the
reverse
se

quence
of
removal

Fig
BE

23

Removing
eluster
lid

SPEEDOMETER

REMOVAL
AND

INSTALLATION

1

Remove
combination
meter

as

sembly
Follow
the

procedures
under

Removal
and
Installation
in
Combina

tion

Meter
Body
Electrical

System

2
Remove
meter
front
cover
and

shadow

plate
by

removing
clips
and

screws

3

Remove
screws

retaining
speed

ometer
to

printed
circuit

housing
and

remove

speedometer

4
Install

speedometer
in
the

reverse

sequence
of
removal

ODOMETER
SWITCH

REMOVAL

AND

INSTALLATION

I
Remove

speedometer
as
outlined

under

Speedometer

2
Remove
odometer

retaining

screws

3
Install
odometer
in
the
reverse

sequence
of
removal

BE342A

Fig
BE

24
Odometerswitch

FUEL

GAUGE

AND
WATER

TEMPERATURE

GAUGE

DESCRI

PTION

The
fuel

gauge
consists

of
a

tank

unit

located
in
the

fuel
tank

and
fuel

gauge
The
tank

unit

detects
fuel
level

with
its

float

converts
fuel
level
varia

tion
to
a
resistance

of
slide
resistor

installed

on
the
float
base
and

thus

controls

current

flowing
to
the
fuel

gauge

BE16
The
water

temperature
gauge
con

sists
of
a

gauge
and
thermal
transmit

ter
located
in
the

engine
block
The

thermal
transmitter
is

equipped
with

a

thermistor
element

which
converts

cooling
water

temperature
variation

to

a
resistance
and
thus
the
thermal

tr

t
c

rtrols
cUfTent
flowing
to

the

gauge

The

fuel

gauge
and

water

tempera

ture

gauge
are

provided
with
a
bi
metal

arm
and
heater
coil
When
the

ignition

switch
is

set
to
ON
current
flows
to

the
heat
coil
and
the
heat
coil
is

heated
With
this
heat
the
bi
metal

arm
is

bent
and
thus
the

pointer

connected
to
the
bi
metal

arm
is

oper

ated
The
characteristics

of
both

gauges
are
the

same

A
tolerance

may
occur
on
the

water

temperature
gauge
or
fuel

gauge
due
to

source

voltage
fluctuation
The

voltage

regulator
is
used
to

supply
a

constant

voltage
so
that

the
water

temperature

gauge
and
fuel

gauge
operate
correctly

The

operating
part
of
the

regulator

consists
of
a
bi

metal

arm
and

a
heater

coil
When
the

ignition
switch
is

turned
on
the
bi
metal

arm
is
heated

and
bent

by
the
coil

opening
the

contact

Consequently
current
to

the

coil
is

interrupted
As

the
bi
metal

cools
the

contact
closes
The

repeti

tion

of
this

operation

produces
a

pulsating
voltage
of
8
volts
which
is

applied
to
the

water

temperature
and

fuel

gauges

If
both
the
water

temperature

gauge
and
fuel

gauge
become

faulty
at

the

same
time
this

may
be
attributed

to

problem
in
the

voltage
regulator

REMOVAL
AND

INSTALLATION

1
Remove

combination
meter
as

sembly
Follow
the

procedures
under

Removal

and
Installation
in
Combina

tion

Meter

2

Remove
meter
front
cover
and

shadow

plate
by

removing
clips
and

screws

3
Remove

retaining
nuts
at
the

back
side
of
combination

meter
as

sembly
and
remove

meter

4

Install
meter
in

the
reverse
se

quence
of

removal

Fuse

M
Body
Electrical

System

YR
Meter

voltage
regulator

Water

temperature
gauge

BE261

Circuit

diagram
of
fuel
gauge
and
water

temperature
gauge

pressure
falls
below
0
4

to
0
6

kg
cm2

5

7
to
8
5

psi
Under
normal

opera

tion
when
the

engine
is

stationary
the

ligh
glows
with
the

ignition
switch

turned

on
When
the

e

gine
is

running

and
oil

pressure
reaches
the

above

range
the
circuit

opens
and
the

light

goes
out
Ignition

switch
YW

B

1

Y

I
Fusible

link

YW

t

Thermal
transmitter
L

Fig
BE

25

OIL
PRESSURE

WARNING
LAMP

DESCRIPTION

The

engine
lubricating
system
in

corporates
an
oil

pressure

warning

lamp
which

glows
whenever

engine
oil

FUSE
BOX

SA

IGJ
G
YR

I

G

IGNITION

SWITCH

YB

I
FUSIBLE
LINK

O
J
BROWN
lffi

l

f

r@

Fuel

gauge

Fuel
tank

TO
METER
VOLTAGE
REGULATOR

TO
OTHER
WARNING

lAMPS

jt

Oil

PRESSURE

WARNING
LAhlP

YB

tl

PRESSURE

PRESSURE
FROM

BATTERY

BE263

Fig
BE

26
Circuit

of
oil

prelSure
warning
system

Fusible
link
Fuse
box

M
OIL
PRESSURE
SWITCH

To

replace
oil

pressure
switch

dis

connect

lead
wire
from
switch
termi

nal
and
unscrew
switch
from

engine

cylinder
block

Prior
to

installing
switch
to

cylinder

block
be

sure
to

apply
conductive

sealer
to
threads
of
new

switch

CHARGE
WARNING

LAMP

DESCRIPTION

The

charge
warning
lamp
glows

when
the

ignition
switch
is
set
to

ON
with
the

engine
shut
down

or

when
the

generator
falls
to

charge
with

the

engine
operated

When
the

ignition
switch
is

set
to

ON
the

charge
warning
circuit
is

closed
and
current
flows
from
the

ignition
switch
to
the

warning
lamp

and

grounds
through
the

regulator

Fig
BE
27

1
When
the

engine
is

started
and
the

generator
comes
into

operation
the

generator
output
cur

rent
N

opposes
th
current

flowing

from
the

warning
lamp
as
the
current

N
increases
the
solenoid
is
more

energized
and
the

pilot
lamp
relay

contacts
are

open
in
effect
it
oreaks

the

warning
circuit

ground
connection

and
the

lamp

goes
out
Fig
BE
27

2

Fusible
link
Fuse

box

M

From

battery

To

battery
Ig
ition

ru
nu
swllch

A
A
To

other

warning

h
To

ignition

IQlamps

i
J

r
coil
WR

t

I

j
Charge
warning
lamp

T

T

I
War

lamp
relay

J
I

Generator
v

it
ge
e

g
bt
From

battery

To

battery
Ignition

witch

J
i

L
r
t
ft
ignition

r

Glj
fCOil
WR

f

I
Warning
lamp
relay

Generator

Voltage
regulator
I
YR

Fig
BE
27
1

BE17
YR

UTO
other

warrung

lamps

Charge

warning
lamp

BE264

Fig
BE
27
2

Circuit

of
charge
warning
system

Condition

Inaccurate

speedometer

indication

Inaccurate
odometer

operation
Body
Electrical

System

Probable
cause

Inoperative
speedometer

Improperly
meshed
second
and
third

gear

worn

gears

Faulty
feeding
due
to
deformed
odometer

and

pinion
carrier

WATER
TEMPERATURE
AND
FUEL
GAUGES

Condition

Both
water

temperature

gauge
and

fuel

gauge

do
not

operate

Both
water

temperature

gauge
and
fuel

gauge

indicate

inaccurately

Water

temperature

gauge

Water

temperature

gauge
does

not

operate

Gauge
indicates

only

maximum

temperature

Water

temperature

gauge
does
not

operate
accurately
Probable
cause

Burnt

fuse

Inoperative
gauge
voltage
regulator

Inoperative
gauge
voltage
regulator
Gauge

pointer
fluctuates
excessively

Loose
of

poor
connection

Gauge
pointer

fluctuates
slightly

Correct
conn

Faulty
thermal
transmitter
or
loose
terminal

connection

When
thermal
transmitter

yellow
white

wire
is

grounded
gauge
pointer
fluctuates

Faulty
water

temperature
gauge

Open
circuit

Faulty
thermal
transmitter

Gauge
pointer
returns
to

original
position

when

ignition
switch
is
turned

off

Faulty
water

temperature
gauge

Gauge
pointer
indicates
maximum

tempera

ture
even
after

ignition
switch
is
turned

off

Faulty
water

temperature
gauge

Faulty
thermal
transmitter

Loose
or

poor
connection

BE
19
Corrective
action

Replace

Replace
speedometer

Replace
speedometer

Corrective
action

Correct

cause
and

replace
fuse

Replace
water

temperature

gauge

Replace
water

temperature
gauge

Correct
connector
contact

Replace
thermal
transmitter
or
correct

terminal
connection

Replace
wtater

temperature
gauge

Replace
thermal
transmitter

Replace
water

temperature
gauge

Connect
a
usn
resistance
between

ther

mal
transmitter

yellow
white
wire
and

ground
When

gauge
indicates

approximately

500C

i220F
gauge
is
serviceable

Correct

gauge
terminal
contact

Condition

Fuel

gauge

Fuel

gauge
does
not

operate

Pointer
indicates
only

F

position
Body
Electrical

System

Probable
cause

Faulty
tank
unit
or
loose
unit

terminal

connection

pointer
indicates
a
half
level
when
a
35U

resistance
is
connected
between
tank
unit

yellow
wire

and

ground

Faulty
fuel

gauge

Poor

or
loose
cormection

Open
circuit

Faulty
tank
unit

pointer
lowers
below
E

mark
when

igni

tion
switch
Is
turned

off

Faulty
fuel

gauge

pointer
still
indicates
F

position
when

ignition
switch
is
turned
off

OIL
P

RESSURE
AND
CHARGE
WARNING
LAMPS

Condition

Oil

pressure
wamiug

lamp

Lamp
does
not

light

when

ignition
switch
is

set
to
ON

Lamp
does
not

go
out

while

engine
is

being

operated

OIarge
warning
lamp

Lamp
does
not

light

when

ignition
switch
is

set

to
ON

Lamp
does
not

go
out

when

engine
is
started
Probable
cause

Inoperative
oil

pressure
switch
or
loose

switch
terminal
connection

When
switch

yellow
black
wire
is

grounded

warning
lamp
lights

Burnt
bulb
or
loose
bulb

Open
circuit

Lack
of

engine
oil

Oil

pressure
too
low

Inoperative
oil

pressure
switch

Burnt
bulb
or
loose
bulb

Warning
lamp
does
not

light
when

voltage

regulator
white
red
wire
is

grounded

Open
circuit

Faulty

charging
system

BE
20
Corrective
action

Replace
tank
unit
or
correct
terminal

con

nection

Replace
fuel

gauge

Conect
connector
terminal

contact

Replace
tank
unit

Replace
fuel

gauge

Corrective
action

Replace
switch
OJ
correct
terminal
connee

tion

Replace
bulb
or
correct
bulb
socket

Check
oil
level
and
add
oil
as

required

Inspect
engine
oil

pressure
system

Replace
oil

pressure
switch

Replace
bulb

or
correct
bulb
socket

Inspect
charging
system