air condition DATSUN 210 1979 Service Manual

Erigine
crankcase

EI
gine
cooling
system

Transmission
case

Final
drive
case

housing

Steering
gear
box

Fuel
tank

Air

conditioning
system

Refrigerant

Compressor
oil

f
tl

It
J

4
i

1

protect
the

catalytic

cop
verter
froitr

contamination
t
n
General
Information

APPROXIMATE
REFILL
CAPACITIES

Without
oil
filter
AI4

Al5

w

Al5

M
T

AfT

MiL

A
T
Liter

US
measure

3
2
3

qt

2
8
3

qt

3

7

llLgt

33
3

qt

5
2
5

qt

5
0
5Y

qt

5
9
6
Y
at

57

6qt

1
3
2
Y

ot

1
2
2

pt

53
5

qt

0
9
1

pt

0
25

pt

50
13
Y
I

0
8
tol

Okg
1

8
to
2
2
1b

0
237

8
0
floz
Withoil

Without
heater

With

heatfr

MaDllal
soeed

5

spee

Automatic
1

1
Includes
2
7

liters
2

US

qt
2

Imp
qt
for

torque
converter

RECOMMENDED
FUEL

Use
an
unleaded
or
low
lead

gaso

line
with
a
minimum
octane

rating
of

91

RON
Research
Octane
Number
For

cars

equipp
d
with
the

Cataly

tic

converter
California
and
FU
mod

els
use

only
unleaded

gasoline
to

RECOMMENDED

Lubricant

GasOline
engine
oil

Gear
oil
Transmission

and

steering

Differential

Au
omatic

TIM
fluid

Multi

purpose
grease

Brake
and
clutch
fluid

Anti
freeze
L
NDED

LUBRICAN

COMMENDED

i

I
VISCOSITY
NUMBER

t1

NGON
0

L
J

I
j
H

I

IlL
I

t

l

I
lc
30
ItM
7

l
t

U

I
ItM
I

L
L
tJ

30

I

I
fu

JIl
inld

do

o

II

L
liOwl

1
I
I
1

10

I
I

I
I
t

I

I

j
r

I

I
J
1

21
l
1
I
71

c

DIUt
I2lItMOl
UGIIII
FI

R

NIl
I
01
a
Specifications
Remarks

APISE

API
GL4
Further
details
refer
to

recommended
SAE

viscosity
chart

API
GL
5

Type
DEXRON

NLGI
No
2
Lithium

soap
base

DOT
US
FMVSS
No
116

Ethylene
glycol
base

GI
5
Imp

meas4re

2

qt

2

qt

3Y

qt

2

it

4

qt

4

q

5Y

qt

5

qt

2Y

pt

2

pt

4

qt

I

pt

pt

II

gal

1
8
to
2
2
lb

83f1
oz

Ji

j

j

sion

pressure
chances
are

that

piston

rings
are

worn
or
damaged

2

If

pressure
stays
low

the
likeli

hood
is
that
valve
is

sticking
or

seating
Engine
Tune

up

improperly

3

If

cylinder
compression
in

any

two

adjacent
cylinders
is
low

and
if

adding
oil
does
not

help
the

compres
sion
there
is

leakage
past
the

gasketed

surface

Oil
and

water
in
combustion
cham

bers
can
result
from
this

problem

IGNITION
AND

FUEL
SYSTEM

CHECKING
BATTERY

I

Remove
six
vent

plugs
and
check

electrolyte
level
in
each

battery
cell
If

necessary
pour
distilled
water

Overflow
Correct

Shortage

t
t
j

t

t
t

EE358

Fig
ET
6

Checking
Electrolyte

Level
2
Measure
the

specific
gravity
of

battery
electrolyte

E
T372

Fig
ET
7

Checking
Specific
Gravity

of
Battery
Electrolyte

Over
1
22
Full

charge
value

at
200C
680F

1
28

1
26
Permissible
value

Frigid
climates

Other
climates

Note

a
Clean

top
of

battery
and

terminals

with
a

solution
of

baking
soda
and

water
Rinse
off
and

dry
with
com

pressed
air

Top
of

battery
must

be

c1
n
to

prevent
current

leakage

between
terminals
and
from

posi

tive
terminal
to
hold
down

clamp

b
In

addition
to
current

leakage

prolonged
accumulation
of
acid
and

dirt

on

top
of

hattery
may
cause

blistering
of
the
material

covering

ronnector

straps
and
rorrosion
of

straps

c
Afte
r

tightening
terminals
coat

them
with

petrolatum
vaseline
to

protect
them
from
corrosion

CAUTION

If
the

battery
cables
are
disconnected

they
should
be

tightly
clamped
to
the

battery
terminals
to
secure
a

good

contact
Over
I

20

CHECKING
AND

ADJUSTING

IGNITION
TIMING

Check

spark
plugs
for
condition

2

Thoroughly
remove
dirt
and
dust

from
crank

pulley
at

timing
mark

location

and
front
cover
at

timing

indicator

3
Warm

up
engine
sufficiently

4
Connect

engine
tachometer
and

timing
light
in
their

proper
positions

5

Adjust
idling
speed
to
the

specifi

ed
value

Idling
speed

Manual
transmission

700

pm

Automatic
transmission

6S0

rpm

in
0

position

ET
S
WARNING

When
selector
lever
is
shifted
to

0

position
apply
parking
brake

and
block
both
front
and
rear

wheels
with
chocks

Note

a
On
FU
models

set

idling
speed

with

distributor
vacuum
hose
dis

connected

b
Disconnect

distributor
vacuum

hose

at

distributor

diaphragm
side
and

plug
hose
with
blind

plug
See

Fig

ET
8

ET501

Fig
ET

B
Disconnecting
Distributor

Vacuum
Hose

6
Check

ignition
timing
with
a

timing
light
to
ensure
that
it
is

adjust

ed
to

specifications
indicated
below

Ignition
timing

Manual
transmission

SO
B
T
0
C
f700

rpm

California
FU
models

100
B
T
0
C
f700

pm

Non
California
Canada

models

Automatic
transmission

SO
B
T
0
C
f6S0

rpm

California
models

CHECKING
AND

ADJUSTING

CARBURETOR
IDLE

RPM
AND
MIXTURE

RATIO

WARNING

a
0

n
a
utomatic
transmission

models
checks
should
be

per

formed
with
the
lever
shifted
to

the
0

position
Be
sure
to

engage
parking
brake
and

to
lock

both
front
and

rear
wheels
with

wheel
chocks

b

Oepress
brake

pedal
while
ac

celerating
the

engine
to

prevent

forward

surge
of
car

c
After
idle

adjustment
has
been

made
shift
the
lever
to
the
N

or
P

positfon
and

remove

wheel
chocks

CAUTION

00
not

attempt
to
screw
the
idle

adjusting
screw
down

completely
00

ing
so
could

cause

damage
to

tip

which
in
turn
will
tend
to
cause

malfunctions

Note

a
When

measuring
CO

percentage
in

sert

probe
into
tail

pipe
more
than

40
cm

15
7

in

b
In

thee
case
of
air

conditioner
e

quipped
models
the
idle

adjust

ment

should
be
carried
out
while

the
air

conditioner
is

OFF

c
When
making
idle

adjustment
do

not

removt
air
cleaner

CO

Idle
adJustment

with
CO
meter

Idle
mixture

adjustment
requires

the
use
of
a
CO
meter

especially
for

California
models
When

preparing
to

adjust
idle
mixture
it
is

essential
to

have

the
meter

thoroughly
warmed

up

and
calibrated

1

Check
carburetor

pipes
for

proper

connection

2
Warm

up
engine
until
water
tern

perature
indicator

points
to
the
middle

of

gauge
The

procedure
to
warm

up

J
Engine
Tune

up

engine
is
not

specifically
recom

mended
Either

driving
car
or

operat

ing
engine
at
no
load
will
be

good

3
Make
sure

that
water

temperature

indicator

points
to
the

middle
Further

keep
engine

running
at
about
2
000

rpm
for
about
5

minutes
without

applying
load
to

engine
in
order
to

stabilize

engine
condition

Engine

hood
should
be

open

4
Run

engine
for
about

10
minutes

at

idling
speed

During
this
10

minutes

proceed
as
described
in

steps

5

to
9
below

5

I
Disconnect
air
hose
from
air

check
valve
and
install

cap
on
air

check

valve

Except
Canada
and
FU

models

EF244

Fig
ET
11
Disconnecting
Air
Hose

from
Air
Check
Valve

Except
Canada
and
FU
models

Canada
and
FU
models

2

Disconnect
air

hose
from
air

induction

pipe
and
install

cap
on
air

induction

pipe
Canada
and
FU
mod

els

EF849

Fig
ET
12

Installing
Cap
on
Air

Induction

Pipe

FU
models

3

On
FU
models
disconnect
dis

tributor
vacuum
hose
at
distributor

diaphragm
side

and

plug
hose
with

blind

plug

ET
7
ET501

Fig
ET
13

Disconnecting
Distributor

Vacuum
Hose

6
Race

engine
I
500

to
2
OOO

rpm

two

or
three
times

under
no
load
then

run

engine
for

one
minute

at

idling

speed

7

Adjust
throttle

adjusting
screw

until

engine
is
at

specified
speed

Engine
speed

Manual
transmission

700
rDm

Automatic

transmission

in
0

position

650

rpm

2

Fig
ET
14
Throttle
Adjusting
Screw

and
Idle

Adjusting
Screw

8

Check

ignition
timing
If
neces

sary
adjust
it
to

specifications

This

operation
need
n
t
be
carried

out
at
1
600
km
1

000
miles
service

Ignition
timing

Manual
transmission

50
B
T
0
C
f700

rpm

California
FU
models

100

B
T
O
C

noo

rpm

Non
California
Canada

models

Automatic
transmission

in
0

position

50
B
T
0
CJ650

rpm

California
model

SO
B
T
D
C

650

rpm

Non
California
models

except
Canada

100
B
T
0
C
650

rpm

Canada
models

Note
On
FU

models

ignition
timing

t
under
a

con4ition
where

distnoutor

vacuum
hose

is
discon

nected

9
On

FU
models

proceed
as
fol

lows

I
Remove
blind

plug
from
dis

tributor
vacuum
hose
and
connect

hose

to
distributor

diaphragm

EC370A

Fig
ET
15

Connecting
Distributor

Vacuum
Hose

2
If

engine
speed
varies
in
this

state
set
idling
speed
at

specified
value

with
throttle

adjusting
screw

10
At

about
10

minutes
after
en

gine
is

run
at

idling
speed

adjust
idle

adjusting
screw
so
that
CO

percentage

is
at

specified
level

CO

percentage

Manual
transmission

2
t
1
at
700

rpm

Automatic
transmission

in
0

position

2
t
1
at
650

rpm

II

Repeat
procedures
as
described

in

steps
6
7
and

10
above
so
that
CO

percentage
is

at

specified
level
Check

ing
idle
CO
in

step
10
can
be

carried

out

right
after

step
7
Engine
Tune

up

11
Race

engine
1
500
to
2
000

rpm
two

or
three
times
under

no
load

and

make

sure
that

specified
CO

per

centage
is
obtained

13

I
Remove

cap
and

connect
air

hose
to

air
check

valve

Except

Canada
and
FU

models

2

Remove

p
and

connect
air

hose
to
air
induction

pipe
Canada

and

FU
models

If

engine
speed
increases

readjust
it

to
the

specified
speed
with
throttle

adjusting
screw

14
On
FU
models

proceed
as

follows

Open
throttle
valve

by
tuming

throttle
shaft

then
close
it

And
make

sure
throttle

valve
switch
of
fuel

shut

off

system

operates
click
sound
is

heard

or

continuity
turns
to

OFF

when

throttle
valve
is

closed

If
not

adjust
throttle
valve

switch

In
air
conditioner

equipped
models

inspection
in

step
13
should
be

carried
out
when

engine
is

running

with
air
conditioner
in
ON

F

l
CD
is
actuated

Refer
to

Checking
Fuel
Shut
off

System
in
this
section

CO
Idle

adjuatment

without
CO

mater

If
CO

meter
is
not

available
the

following
procedures

may
be

used

I

Check
carburetor

pipes
for

proper

comiection

2
Warm

up
engine
until
water
t
m

perature
indicator

points
to
the

middle

of

gauge
The

procedure
to

warm

up

engine
is
not

specifically
recom

mended
Either

driving
car
or

operat

ing
engine
at
no

load
will
be

good

3
Make

sure
that
water

temperature

indicator

points
to
the

middle
Further

keep
engine

running
at
about
2
000

rpm
for

about
5
minutes

without

applying
load
to

engine
in
order

to

stabilize

engine
condition

Engine

hood
should
be

open

4

Run

engine
for
about
10

minutes

at

idling

speed
During
this

10

minutes

proceed
as
described
in

steps

5
to
9
below

5

I
Disconnect
air

hose
from
air

check
valve
and

install

cap
on
air

ET
8
check
nlve

Except
Canada
and
FU

models

2
Disconnect
air

hose
from
air

induction

pipe
and
install

cap
on
air

induction

pipe
Canada
an
FU

models

3
On

FU
models

disconnect
dis

tributor

vacuum
hose

at
distributor

diaphragm
ide
and

plug
hose
with

blind

plug

6
Race

engine
1
500
to
2
000

rpm

two
or

three
times

under
no
load
then

run

engine
for

one
minute

at

idling

speed

7

Adjust
throttle

adjusting
screw
to

that

engine
speeds
are

as
indicated

below

Engine
speed

Manual
tra
mi
ion

except
FU
models

740

rpm

Automatic

transmission

in
0

position

665

rpm

FU
models

765

rpm

8
Check

ignition
timing
if
neces

sary
adjust
it

to
the
value

required
by

specifications
This

operation
need
not

be
carried
out
at
1

600
km

1
000

miles
service

9
On
FU
models

proceed
as
fol

lows

I
Remove
blind

plug
from
dis

tributor
vacuum
hose
and
connect

hose
to

distributor

diaphragm

2

If

engine
speed
varies
in
this

state
set

idling
speed
at

specified
value

given
in

step
7
with

throttle

adjusting

screw

10
At
about
10
minutes
after
en

gine
is

run
at

idling
speed
adjust
idle

adjusting
screw
until
maximum

rpm
is

obtained

II

Repeat

procedures
as
described

in

steps
6
7
and
10

above
until

engine

speed
at
best
idle
mixture
is

as

specified
in

step
7

Adjustment
in

step

10
can
be
carried
out

right
after

step

7

12
Turn

the
idle

adjustIng
screw

clockwise
until

engine

speed
drops
by

value

given
below

Engine
speed
drops

Manual
transmission

except
FU
models

35
to
45

pm

Automatic
transmission

in
60

position

10
to
20

pm

FU
model

60
to
70

rpm

13

I
Remove

cap
and
connect
air

hose
to
air
check
valve

Except

Canada
and
FU
models

2
Remove

cap
and
connect

air

hose
to
air

induction

pipe
Canada

and
FU
models

If

engine
speed
rises

readjust
it

to

the

specified
speed
with

throttle
ad

justing
screw

Note
Check
throttle
return

spring
for

CI3cks

squareness
or
deformation

if

necessary

replace
with
a
new

one

14
On
FU
models

proceed
as

follows

Open
throttle
valve

by
turning

throttle
shaft
then
close
it
And

make

sure
throttle
valve
switch
of
fuel
shut

off

system
operates
click
sound
is

heard
or

continuity
turns
to
OFF

when
throttle
valv

is
closed

If

not

adjust
throttle

valve
switch

In
air

conditioner

equipped
models

inspection
in

step
13
should
be

carried
out
when

engine
is

running

with
air

conditioner
in
ON

F
I

C
D
is

actuated

Refer
to

Checking
Fuel
Shut
off

System
in
this
section

Idle
limiter
cap

Do

not
remove
this
idle
limiter

cap

unless
necessary
If
this
unit
is
re

moved
it
must
be

readjusted
at
the

time
of

reinstallation
To

adjust

proceed
as
follows

I
After

adjusting
throttle
or
idle

speed
adjusting
screw
check
to

be
sure

that
the
amount
of
CO

contained
in

exhaust

gases
meets
the
established

standard

2

Install
idle
limiter

cap
in

position

making
sure
that
the
adjusting
screw

can
rotate
another
1
8
turn
in
the

CO
RICH
direction
Engine
Tune

up

CO
rich

l
8

rotation

CO
lean

ISo

Idle
limiter

cap

ET031

Fig
ET
16

Setting
of
Idle
Limiter

Cap

CHECKING
CHOKE

MECHANISM
Choke

plate
and

linkage

I

Check
choke

valve
and
mecha

nism
for
free

operation
and
clean
or

replace
if

necessary
A

binding
can

result
from

petroleum
gum
formation

on
choke
shaft
or
from

damage

2
Sefore

starting
engine
fully
de

press
accelerator

pedal
to
ensure
that

choke
valve
closes

properly

3

Push
choke
valve
with
a

finger

and
check
for

binding

4
Check
to
be
sure
that
bi
metal

cover
index
mark
is

set
at
the
center

of

choke

housing
index

mark
as

shown

below

Note
Do

not
set
bi

metal
cover
index

mark
at

any
position

except
the

center
of
choke

housing
index

mark

tfljlL
L

i

05

1
Hi
metal
cover

2
Choke

housing
ind
x
marks

3
Hi
metal
cover
index
mark

ET034

Fig
ET
17

Bi
metal
Setting

ET
9
CHECKING
FUEL

SHUT
OFF
SYSTEM

FU
models

Precautions

a
Before

checking
make
sure

engine

is

warmed

up
and
choke

valve
is

fully
open

b
On
air
conditioner

equipped
mod

els

turn
off
air

conditioner
switch

in

steps
I

through
S

Idle

engine

2

Disconnect
anti

dieseling
solenoid

valve

connector
and
make

sure
that

engine
stops
If
not

replace
anti

dieseling
solenoid
valve

assembly

Fig
ET
18
Checking
Anti

dieseling

Solenoid

for
Function

FU

models

3

Connect
anti
dieseling
solenoid

valve

connector

4

Restart

engine

S

Increase

engine
speed
slowly

under
no
load
and
make

sure

engine

speed
is

within
the

specified
range

when
throttle
valve

switch
is

operated

Operation
of
throttle

valve
switch

is

judged
by
hearing
Click
sound

caused

by
microswitch

inside
throttle

valve

switch
Then
decrease

engine

speed
slowly
and

make
sure

engine

speed
is
within
the

specified
range

when
throttle

valve
switch
is

operated

If

not
adjust
throttle
valve
switch

6
In
air

conditioner

equipped
mod

els

proceed
as
follows

1
Check
F
1

C
D

rpm
and

correct

if

necessary

2
With
air

conditioner
in
ON

F
l
C
D
is

actuated
increase

engine

speed

slowly
then
decrease
it
And

3

way
connector

ck

Air

Manometer

@

Carbon
canister
Engine
Tune

up

400
mmH20
15
75
in

H20

Check
valve

r
F

uel
filler
cap
with

vacuum
relief
valve

1

Fig
ET
28

Checking
Evaporatiue
Emiuion
Control

System
EC091A

CHECKING
FUEL

TANK
VACUUM

RELIEF
VALVE

Remove
fuel
filler

cap
and
see
it

functions

properly

I

Wipe
clean
valve

housing
and
have

it
in

your
mouth

2

Inhale
air
A

slight
resistance
ac
companied
by
valve

indicates
that

valve
is
in

good
mechanical
condition

Note

also
that

by
further

inhaling
air

the
resistance
should
be

disappeared

with
valve

c
ks

3

If
valve
is

clogged
or
if
no
resist

ance
is
felt

replace
cap
as
an
assem

bled
unit

ET
j3
D

o
0

o
0

o
0

ET500

Fig
ET
29
Fuel
Filler

Cap
with

Vacuum

Relief
Value

REPLACING
CARBON

CANISTER
FILTER

Check
for
a
contaminated
fJlter

Filter
can
be
removed
at
the
bot

tom

of
canister
installed
on
car

body

2

Replace
fJlter
in

accordance
with

maintenance
chedule

EF201

Fig
ET
30

Repfucing
Carbon
Canister

Filter

Engine
Tune

up

TROUBLE
DIAGNOSES
AND

CORRECTIONS

Condition
Probable

cause

CANNOT
CRANK

ENGINE
OR

SLOW

CRANKING
Improper
grade
oil

Discharged
battery

Faulty
battery

Loose
fan
belt

Malfunction
in

charge
system

Wiring
connection

loose
in

starting
circuit

F

ul1Y
ignition
switch

Faulty
starter
motor

Trouble
shooting

procedure
on

starting
circuit

Switch

on
the

starting
motor
with

light
ON

WheJlIJght
gOO
off
or

Ii
J1S
considerably

a
Check

battery

b
Check

connection
and
cable

c
Check
starter
motor

When

light
stays
bright
Corrective
action

Replace
with

proper
grade
oil

Charge
battery

Replace

Adjust

Inspect

Correct

Repair
or
replace

Repair
or

replace

a
Check

wlflng
connection

between

battery
and
starter

motor

b
Check

ignition
switch

c
Check
starter

motor

ENGINE
WILL
CRANK

NOR
LLY

BUT

WILL
NOT
START

In
this
case
the

following
trouble

causes

may
exist
but
in

many
cases

ignition
system
or
fuel

system
is
in

trouble

19
ition

syst
m
in
trouble

FII
1

system
in
trowb

Val
mechanism

do
not

work

properly

Low

compression

Trouble
shooting

procedure

Check

spark
plug
firstly
by
following
procedure

Disconnect

high
tension
cable
from

one

spark
plug
and
hold
it

about

10
mm

0
39
in
from
the

engine
metal

part
and
crank

the

engine

Good

spark
occurs

a
Check

spark
plug

b

Checkignition

timing

c
Check
fuel

system

d
Check

cylinder

compression

Check

the
current
now
in

primary
circuit

Very

high
current

Inspect
primary
circuit
for
short

Check
breaker

point
operation

except
tran

sistor

ignition

system
No

spark
occurs

ET
l
6

Engine
Tune

up

Condition
Probable

cause

Low

or
no

current

Ignition
system
out

of

order
Burned
distributor

point

Improper
point

gap

Faulty
condenser

Leak
at
rotor

cap
and
rotor

Faulty
spark
plug

Improper
ignition
timing

Faulty
ignition
coil

Disconnecrion
of

high
tension
cable

Loose
connection

or
disconnection
in

primary
circuit

Lack
offuel

Dirty
fuel

filter

Dirty
or

clogged
fuel

pipe

Fuel

pump
will
not
w0rk

properly

Carburetor
choke
will
not
work

properly

Improper
adjustment
of
float
level

Improper
idling

Dirty
or

clogged
carburetor

Clogged
breather

pipe
of
fuel
tank

Malfunctionin

g
anti

dieseling
solenoid
valve

Malfunctioning
fuel
shut
off
system
FU

models

Incorrect

spark
plug
tightening
or

faulty

gasket

Improper
grade
engine
oil
or
low

viscosity

Incorrect
valve
clearance

Compression
leak
from
valve
seat

Sticky
valve
stem

Weak
or

damaged
valve

springs

Compression
leak
at

cylinder
head

gasket

Sticking
or

damaged
piston
ring

Worn

piston
ring
or

cylinder

Trouble
looting
procedure

Pour
the

engine
oil
from

plug
hole
and
then
measurt

cylinder
compression
Fuel

system
out
of

order

Low

compression

Compression
increases

Compression
does
not

change

ET
17
Corrective
action

Check
for
loose
terminal
or
disconnection
in

primary
circuit

Check
for
burned

points

Repair
or

replace

Adjust

Replace

Clean
or

replace

Clean

adjust
plug

gap
or

replace

Adjust

Replace

Replace

Repair
or

replace

Supply

Replace

Clean

Repair
or

replace

Check
and

adjust

Correct

Adjust

Disassemble
and
clean

Repair
and
clean

Check
for
loose

terminal
or
wire

harness

Check
fuel
shut
off

system
Adjust
or
re

place
if

necessary

Tighten
to

normal

torque
or

replace

gasket

Replace
with

proper
grade
oil

Adjust

Remove

cylinder
head
and

lap
valves

Correct
or

replace
valve
and
valve

guide

Replace
valve

springs

Replace
gasket

Replace
piston
rings

Overhaul

engine

Malfunctiong
cylinder
or
piston
ring

Compression
leaks
from
valve

cylinder
head

or
head

gasket

Condition

IMPROPER
ENGINE

IDLING

Fuelsystam
out
of

order

Low

1
ion
Engine
Tune

up

Probable
cause

Clogged
or

damaged
carburetor

jets

Incorrect
idle

adjustment

Clogged
air
cleaner
filter

Damaged
manifold

gaskets
or
carburetor

insulator

bnproper
float
level

adjustment

LoOse
air
hoses

or
air
fuel
mixture

hoses
of

carburetor

Malfunctioning
carburetor
choke

Malfunctioning
anti

backfire
valve

Malfunctioning
automatic

temperature
con

trol
air
cleaner

Inoperative
idle

compensator

Carbon
canister

purge
line
hose

damaged
or

disconnected

Stick
E
F
E
v

ve
shaft

Othen
Incorrect
valve
clearance

Extremely
low
revolution

Malfunction
of

the

ignition
system
spark

plug
high
tension
cable

ignition
coil
etc

incorrect
basic

ignition
timing

Malfunction
of

chol
e

valve
or

linkage

Malfunction
of

vacuum
motor

sensor
or

hoses
of

air
cleaner

Incorrect
idle

adjustment

Cloged
air
cleaner

fIIter

Malfunction

of
idle

compensator
of

air

cleaner

Malfunction
of
E
G
R

control
valve

Loose
manifold
and

cylinder
head
bolts

Higli

engine
idle

opem
Dragged
accelerator

linkage

Incorrect
idle

adjustment

Malfunction
of

T
O

C
s

system
or
tluottle

opener
Except
FU
models

Malfunction
of

speed
switch
and
harness

Except
FU
models

ET

18
Corrective
action

Clean
or

replace

Adjust

Replace
element

Replace
gasket
or
insulator

Adjust

Check
for
loose
connections

Check

lUId
adjust

Check
for
loose
connection

of
vacuum
hose

Check
A
I

C
air

cleaner

Check
for
connection

of
idle

compensator

hose
or

replace
idle

compensator

Connect
or

replace

Repair

Previously
mentioned

Adjust

Adjust

Replace

Adjust

Adjust

Check
for
loose
hoses

Replace
system
com

ponentsif
necessary

Adj
lSt
idle

speed

Replace
air

cleaner
filter

Replace

Clean
or

replace

Retighten
bolts

Check
ahd
correct
accelerator

linkage

Adjust
idle

speed

Check
for
loose
vacuum
hose
and
harness

connections

Adjust
replace
if
necessary

Check
for
loose
connections

Repair
or

replace
if

necessary

Condition

ENGINE
POWER
NOT

UP

TO
NORMAL

Low

compmsion

Ignition
system
out
of

order

Fuel

system
out
of

order

Air
intake

system
out

of

order

Emission
control

Overheating

J

f
H
r

Overcooling
Engine
liune
up

Probable
cause

Malfunction
of
throttle
valve
switch
and

linkage
FU

models

Incorrect

ignition
timing

Damaged

spark
plugs

Wom
distributor

points

Malfunction
of

T
C
S

cMalfunction
of
S
D
V

Milfunction
of
choke

system

Clogged
fuel

pipe
or

floating
valve

Dirty
or

clogged
fuel
filter

Fuel

pump
will
not
work

properly

Clogged
carb

retor

jets

Clogged
air
cleaner

Air

aling
from
manifold

g
sket
r

carburetor

gasket

Malfunction
of
E

G
R
valve

Stick
E

F
E
valve
shaft

Insufficient
coolant

Loose
fan
bel

Wom
or
oiled
fan
belt

Inoperative
therinostat

Wom
ater

pu
p

Clogged
or
leaky
radiator

Wom
radiator
filler

ca

Air
in

cooling
ystein

Improper
engine
oil

grade

Incorrect

ignition
timing

Clogged
carburetor

lean
miiture

Inoperative
thermostat

1

ET
19
Corrective
action

Check
throttle
valve
switch
and

linkage

Adjusi
i
r

replace
if

necessary

Previously
m
entioned

Adjust

Clean

adjust
or

replace
plugs

Dress
or

replace
points
Also
check

condenser

Check
and

correct

Check
and

replace

Adjust

Clean

Replace

Repair
or

replace

t
J
Disassemble
and
clean

Replace
element

Replace

gasket

Check
and

replace

Repair

Replenish

Adjust
fan
belt

Replace

Replace

Repl
ce

Flush

repair
or

replace

ReplaCe

Retightin
e
ch

part
of

cooling
system

Replace
with

proper
grade
oil

Adjust

Overhaui
carburetor

Replace