belt DODGE NEON 2000 Service Service Manual

8W-40 INSTRUMENT CLUSTER
Component Page
A/C Heater Control..................8W-40-10
Airbag Control Module................8W-40-6
Brake Warning Indicator..............8W-40-11
Brake Warning Indicator Switch........8W-40-5
Center Stack Lamp..................8W-40-10
Circuit Breaker No. 2 (FB)............8W-40-12
Combination Flasher................8W-40-3, 4
Controller Anti-Lock Brake.............8W-40-5
Data Link Connector.................8W-40-5
Dome Lamp........................8W-40-9
Dome Lamp/Intrusion Sensor...........8W-40-9
Driver Door Ajar Switch.............8W-40-7, 8
Engine Coolant Temperature Sensor.....8W-40-5
Engine Oil Pressure Switch............8W-40-5
Front Fog Lamp Switch..............8W-40-14
Fuel Pump Module...................8W-40-6
Fuse 1 (FB).......................8W-40-3, 4
Fuse 10 (FB)........................8W-40-2
Fuse 11 (FB)........................8W-40-2
Fuse 13 (PDC)......................8W-40-2
Fuse 15 (FB)........................8W-40-2
Fuse 15 (PDC).....................8W-40-3, 4
Fuse 19 (FB).......................8W-40-13
Fuse 20 (FB).......................8W-40-14
Fuse Block................8W-40-2, 3, 4, 12, 13
G101..............................8W-40-5
G204............................8W-40-2, 9
G301.............................8W-40-11
Headlamp Beam Select...............8W-40-12
Headlamp Leveling Switch............8W-40-10
Headlamp Switch...............8W-40-2, 12, 14Component Page
High Beam Indicator.................8W-40-11
Ignition Switch....................8W-40-7, 8
Indicator Drivers....................8W-40-11
Instrument Cluster.......8W-40-2, 3, 4, 6, 7, 8, 9,
10, 11, 12, 13, 14
Instrument Panel Drivers......8W-40-6, 7, 8, 9, 14
Left Front Fog Lamp................8W-40-13
Left Front Turn Signal Lamp...........8W-40-3
Left Park/Turn Signal Lamp..........8W-40-3, 4
Left Rear Door Ajar Switch...........8W-40-7, 8
Map/Reading Lamps..................8W-40-9
Multi-Function Switch..........8W-40-2, 3, 4, 9,
11, 12, 13, 14
Park Brake Switch..................8W-40-11
Passenger Door Ajar Switch..........8W-40-7, 8
Power Distribution Center.......8W-40-2, 3, 4, 14
Powertrain Control Module............8W-40-5
PRNDL Lamp......................8W-40-10
Radio.............................8W-40-10
Rear Window Defogger Switch.........8W-40-10
Remote Keyless Entry Module........8W-40-6, 8
Right Front Fog Lamp...............8W-40-13
Right Front Turn Signal Lamp..........8W-40-3
Right Park/Turn Signal Lamp.........8W-40-3, 4
Right Rear Door Ajar Switch..........8W-40-7, 8
Seat Belt Indicator..................8W-40-11
Seat Belt Switch....................8W-40-11
Sentry Key Immobilizer Module.........8W-40-6
Traction Control Switch..............8W-40-10
Vehicle Speed Sensor.................8W-40-5
PL8W - 40 INSTRUMENT CLUSTER 8W - 40 - 1

CLUSTER INSTRUMENT
25
G10
20
LG/RD
2
1
SWITCH BELT
SEAT
Z1
18
BK
Z1
16
BK
S311
G301
SEAT
BELT
INDICATOR
A3
C305
G10
20
LG/RD
22INDICATOR WARNING
BRAKE
SWITCH
BRAKE
PARK
G9
18
GY/BK
INDICATOR
DRIVERS
26
HIGH
BEAM
INDICATOR 17
MULTI-
FUNCTION
SWITCH
S215
L3
14
RD/OR
L3
16
RD/OR
DIMMER
SWITCH
HIGH
BEAM
OUTPUT
3
(8W-15-12)
(8W-15-13) (8W-15-12)
(8W-15-13) (8W-50-2)
(8W-50-4)
(8W-11-21)
PL8W-40 INSTRUMENT CLUSTER 8W - 40 - 11
PLI04011008W-10

Component Page
PRNDL Lamp......................8W-80-39
Proportional Evap/Purge Solenoid.......8W-80-39
Radiator Fan Motor.................8W-80-39
Radio.............................8W-80-39
Rear Window Defogger Switch.........8W-80-40
Remote Keyless Entry Module.........8W-80-40
Right Back-Up Lamp................8W-80-41
Right City Lamp....................8W-80-41
Right Front Door Speaker.............8W-80-41
Right Front Fog Lamp...............8W-80-41
Right Front Side Marker Lamp........8W-80-42
Right Front Turn Signal Lamp.........8W-80-42
Right Front Wheel Speed Sensor.......8W-80-42
Right Headlamp....................8W-80-42
Right Headlamp Leveling Motor........8W-80-43
Right Instrument Panel Speaker.......8W-80-43
Right License Lamp.................8W-80-43
Right Park/Turn Signal Lamp..........8W-80-43
Right Rear Door Lock Motor...........8W-80-43
Right Rear Fog Lamp................8W-80-44
Right Rear Speaker..................8W-80-44
Right Rear Turn Signal Lamp..........8W-80-44Component Page
Right Rear Wheel Speed Sensor........8W-80-44
Right Repeater Lamp................8W-80-44
Right Tail/Stop Lamp................8W-80-45
Right Tail/Stop/Turn Signal Lamp......8W-80-45
Seat Belt Switch....................8W-80-45
Sentry Key Immobilizer Module........8W-80-45
Siren.............................8W-80-45
Sunroof Control Module..............8W-80-46
Sunroof Motor......................8W-80-46
Sunroof Switch.....................8W-80-46
Sunroof Vent Switch.................8W-80-46
Throttle Position Sensor..............8W-80-46
Torque Converter Clutch Solenoid.......8W-80-47
Traction Control Switch..............8W-80-47
Trunk Key Cylinder Switch............8W-80-47
Underhood Lamp...................8W-80-47
Vehicle Speed Control Servo...........8W-80-47
Vehicle Speed Sensor................8W-80-48
Windshield Washer Pump.............8W-80-48
Wipe/Wash Switch...................8W-80-48
Wiper Motor.......................8W-80-48
PL8W - 80 CONNECTOR PIN-OUTS 8W - 80 - 3

SENSORKNOCK
21
SENSOR GROUND 20BK/LB K4 2KNOCK SENSOR SIGNAL 20DB/LG K42 1
FUNCTION CIRCUIT CAV
EXCEPT LHD BUILT-UP-EXPORT
BUILT-UP-EXPORTRKEFRONT FOG LAMPS
RHD
L38 16BR/WT
- - --
DIMMER SWITCH HIGH BEAM OUTPUT
L3 16RD/ORSEAT BELT SWITCH SENSE
G10 20LG/RDDRIVER DOOR AJAR SWITCH SENSE
G75 18TNKEY-IN IGNITION SWITCH SENSE
G26 22LBRED BRAKE WARNING INDICATOR DRIVER
G9 18GY/BKFUSED B(+)
M1 20PKDIMMER SWITCH LOW BEAM OUTPUT
L4 16VT/WTRIGHT TURN SIGNAL
L60 20TNLEFT TURN SIGNAL
L61 20LGRIGHT TURN SIGNAL
L160 18TN/RDLEFT TURN SIGNAL
L161 18LG/ORFUSED IGNITION SWITCH OUTPUT (ST-RUN)
G5 20DB/WTHEADLAMP SWITCH OUTPUT
L7 20BK/YLPASSENGER DOOR AJAR/ RKE SENSOR
M9 20DB/ORPANEL LAMPS DRIVER
E2 22ORGROUND
Z3 16BK/ORFUEL LEVEL SENSOR SIGNAL PANEL LAMPS DIMMER SIGNAL
G4 18DBVTSS INDICATOR DRIVER
E19 22RDFOG LAMP SWITCH OUTPUT
G69 20BK/ORCOURTESY LAMP CONTROL
L39 20LBPCI BUS
M2 18YL
26 25 22
23
24
20 16
17
19 18 15
21 10 CAV CIRCUIT
1
2
4 3
7
8 6 5
9
13 1211
14- -REAR FOG LAMP FEED
D25 22VT/YL
LHD
L39 16LBFOG LAMP SWITCH OUTPUT4
BLACK
21CAV CIRCUIT FUNCTION
1
K4 20BK/LB SENSOR GROUND 2G31 20VT/LG INLET AIR TEMPERATURE SENSOR SIGNAL
INLET AIR
TEMPERATURE
SENSOR
BLACK
CLUSTER INSTRUMENT
11326 14BLACK
13M9 20LB/ORPASSENGER DOOR AJAR/ RKE SENSOR
BUILT-UP-EXPORT EXCEPT RKE
EXCEPT BUILT-UP-EXPORT EXCEPT RKE
FUNCTION
PL8W-80 CONNECTOR PIN-OUTS 8W - 80 - 27
PLI08027J008W-10

CAV CIRCUIT FUNCTION
1
Z1 18BK GROUND
2
L7 18BK/YL HEADLAMP SWITCH OUTPUT
3 L62 18BR/RD RIGHT TURN SIGNAL
RIGHT TAIL/STOP/
TURN SIGNAL LAMP
SEAT BELT SWITCH
1 2
BLACK
SEAT BELT SWITCH SENSE 20LG/RD G10 1
GROUND 18BK Z1 2
FUNCTION CIRCUIT CAV
(EXCEPT BUILT-UP-EXPORT)
M1 20PKFUSED B(+) GROUND
Z1 18BK X5 20WT/RDDISPLAY BACKLIGHT
4
1
SIREN
DISPLAY BACKLIGHT
X5 20WT/RDFUNCTION
CAV CIRCUIT
1
2
4 3
MODULE IMMOBILIZER
- -- -
FUSED B(+)
M1 20PKGROUND
Z2 20BK/LGFUSED IGNITION SWITCH OUTPUT (ST-RUN)
G5 20DB/WTPCI BUS D25 22VT/YL1
6
SENTRY KEY
FUNCTION
CAV CIRCUIT
1
2
4 3
6 5
RIGHT TAIL/STOP
LAMP
(BUILT-UP-EXPORT)
1 3
HEADLAMP SWITCH OUTPUTGROUND Z1 18BK
3
CAV CIRCUIT FUNCTION
1
L50 18WT/TN BRAKE LAMP SWITCH OUTPUT 2 L7 18BK/YL
(BUILT-UP-EXPORT)
31
BLACK
BLACK
BLACK
PL8W-80 CONNECTOR PIN-OUTS 8W - 80 - 45
PLI08045008W-10

Connector
Name/NumberColor Location Fig.
Proportional
EVAP/Purge
SolenoidBK Left Rear of
Engine
Compartment2
Radiator Fan
MotorBK Front of
Engine
Compartment2
Radio - C1 BK Rear of Radio 7
Radio - C2 GY Rear of Radio 7
Rear Window
Defogger
SwitchBK Center of
Instrument
Panel7
Remote
Keyless Entry
ModuleBK Center of
Instrument
Panel7
Right Back-Up
LampBK At Lamp 12
Right City
Lamp
(Built-Up-
Export)GY Right
Headlamp
OpeningN/S
Right Front
Door SpeakerBK At
Passengers
Door15
Right Front
Fog LampBK At Lamp N/S
Right Front
Side Marker
LampNAT At Lamp N/S
Right Front
Turn Signal
Lamp
(Built-Up-
Export)NAT At Lamp 3
Right Front
Wheel Speed
SensorBK At Right Front
Wheel
Opening1, 3
Right
HeadlampBK At Lamp 3
Right
Headlamp
Leveling Motor
(Built-Up-
Export)GY Rear of Right
HeadlampN/S
Right
Instrument
Panel SpeakerBK At Speaker 6, 7Connector
Name/NumberColor Location Fig.
Right License
Lamp
(Built-Up-
Export)NAT At Lamp 13
Right
Park/Turn
Signal Lamp
(Except
Built-Up-
Export)BK At Lamp N/S
Right Rear
Door Lock
MotorBK At Motor 16
Right Rear
Fog Lamp
(Built-Up-
Export)GY At Lamp 13
Right Rear
SpeakerBK At Speaker 11
Right Rear
Turn Signal
Lamp
(Built-Up-
Export)GY At Lamp 12
Right Rear
Wheel Speed
SensorBL At Right Rear
Wheel
OpeningN/S
Right
Repeater
Lamp
(Built-Up-
Export)BL At Lamp 1
Right Tail/Stop
Lamp
(Built-Up-
Export)BK At Lamp 12
Right
Tail/Stop/ Turn
Signal Lamp
(Except
Built-Up-
Export)BK At Lamp N/S
Seat Belt
SwitchBK Under Drivers
SeatN/S
Sentry Key
Immobilizer
ModuleBK Left Side of
Instrument
Panel6
Siren
(Built-Up-
Export)Left Front of
Vehicle1
PL8W - 90 CONNECTOR/GROUND LOCATIONS 8W - 90 - 5
DESCRIPTION AND OPERATION (Continued)

Connector
Name/NumberColor Location Fig.
Right Tail/Stop
LampBK At Lamp 31
Seat Belt
SwitchBK Under Drivers
SeatN/S
Sentry Key
Immobilizer
ModuleBK Right Side of
Instrument
Panel25
Siren Left Front of
Vehicle18
Sunroof
Control
ModuleAt Sunroof N/S
Sunroof Motor At Sunroof N/S
Sunroof
SwitchBK At Switch N/S
Sunroof Vent
SwitchAt Switch N/S
Throttle
Position
SensorBK On Throttle
Body19
Torque
Converter
Clutch
Solenoid
(ATX)BK On
Transmission19Connector
Name/NumberColor Location Fig.
Traction
Control SwitchWT Center of
Instrument
Panel24
Trunk Key
Cylinder
SwitchGY On Decklid 36
Underhood
LampBK At Lamp N/S
Vehicle Speed
Control ServoBK At Left Front
Strut Tower19
Vehicle Speed
SensorBK On
Transmission22
Windshield
Washer PumpRD At Right Front
Wheel
Opening18
Wipe/Wash
SwitchGY Center of
Instrument
Panel25
Wiper Motor BK Right Side of
Engine
Compartment23
PL8W - 90 CONNECTOR/GROUND LOCATIONS 8W - 90 - 25
DESCRIPTION AND OPERATION (Continued)

CAUTION: Do not drive cup plug into the casting
as restricted cooling can result and cause serious
engine problems.
INSTALLATION
Thoroughly clean all debris/rust from inside of cup
plug hole in cylinder block or head. Be sure to
remove old sealer. Lightly coat inside of cup plug hole
with MopartStud and Bearing Mount Adhesive.
Make certain the new plug is cleaned of all oil or
grease. Using a proper driver, drive plug into hole so
that the sharp edge of the plug is at least 0.5 mm
(0.020 inch.) inside the lead in chamfer (Fig. 3).
It is not necessary to wait for curing of the sealant.
The cooling system can be refilled and the vehicle
placed in service immediately.
ENGINE PERFORMANCE
If a loss of performance is noticed, timing belt or
chain may have skipped one or two teeth. Camshaft
and crankshaft timing should be checked. Refer to
Group 9, Engine Timing belt or chain installation.
It is important that the vehicle is operating to it's
optimum performance level to maintain fuel economy
and lowest vehicle emissions. If vehicle is not operat-ing to these standards, refer to Engine Diagnosis in
this section. The following procedures can assist in
achieving the proper engine diagnosis.
(1) Test cranking amperage draw. Refer to Group
8B, Starting.
(2) Check intake manifold for vacuum leaks.
(3) Perform cylinder compression pressure test.
Refer to Engine Diagnosis in this section.
(4) Clean or replace spark plugs as necessary and
adjust gap as specified in Group 8D, Ignition System.
Tighten to specifications.
(5) Test resistance of spark plug cables. Refer to
Group 8D, Ignition System.
(6) Test ignition coils primary and secondary resis-
tance. Replace parts as necessary. Refer to Group 8D,
Ignition System.
(7) Check fuel pump pressure at idle and different
RPM ranges. Refer to Group 14, Fuel System for
specifications.
(8) The air filter elements should be replaced as
specified in Group 0, Lubrication and Maintenance.
(9) Inspect crankcase ventilation system. Refer to
Group 25, Emission Control Systems.
(10) Road test vehicle as a final test.HONING CYLINDER BORES
(1) Used carefully, the cylinder bore resizing hone,
recommended tool C-823 or equivalent, equipped
with 220 grit stones, is the best tool for this honing
procedure. In addition to deglazing, it will reduce
taper and out-of-round as well as removing light
scuffing, scoring or scratches. Usually a few strokes
Fig. 2 Access Plug
1 ± CRANKSHAFT BOLT ACCESS PLUG
2 ± RIGHT MOUNT BOLT ACCESS PLUG
3 ± FASCIA
4 ± SPLASH SHIELD
Fig. 3 Core Hole Plug Removal
1 ± CYLINDER BLOCK
2 ± REMOVE PLUG WITH PLIERS
3 ± STRIKE HERE WITH HAMMER
4 ± DRIFT PUNCH
5 ± CUP PLUG
PLENGINE 9 - 3
GENERAL INFORMATION (Continued)

ENGINE DIAGNOSIS
TABLE OF CONTENTS
page page
DIAGNOSIS AND TESTING
GENERAL INFORMATION...................8
INTAKE MANIFOLD LEAKAGE DIAGNOSIS......8
CYLINDER COMPRESSION PRESSURE TEST . . . 8
CYLINDER COMBUSTION PRESSURE
LEAKAGE TEST.........................9LASH ADJUSTER (TAPPET) NOISE
DIAGNOSIS............................9
ENGINE OIL LEAK INSPECTION..............9
ENGINE DIAGNOSISÐPERFORMANCE........11
ENGINE DIAGNOSISÐMECHANICAL.........12
DIAGNOSIS AND TESTING
GENERAL INFORMATION
Engine diagnosis is helpful in determining the
causes of malfunctions not detected and remedied by
routine maintenance.
These malfunctions may be classified as either
mechanical (e.g., a strange noise), or performance
(e.g., engine idles rough and stalls).
Refer to the Service DiagnosisÐMechanical Chart
and the Service DiagnosisÐPerformance Chart, for
possible causes and corrections of malfunctions. Refer
to Group 14, Fuel System, for the fuel system diag-
nosis.
Additional tests and diagnostic procedures may be
necessary for specific engine malfunctions that can-
not be isolated with the Service Diagnosis charts.
Information concerning additional tests and diagno-
sis is provided within the following:
²Cylinder Compression Pressure Test
²Cylinder Combustion Pressure Leakage Test
²Engine Cylinder Head Gasket Failure Diagnosis
²Intake Manifold Leakage Diagnosis
INTAKE MANIFOLD LEAKAGE DIAGNOSIS
An intake manifold air leak is characterized by
lower than normal manifold vacuum. Also, one or
more cylinders may not be functioning.
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS OR THE FAN.
DO NOT WEAR LOOSE CLOTHING.
(1) Start the engine.
(2) Spray a small stream of water (Spray Bottle) at
the suspected leak area.
(3) If engine RPM'S change, the area of the sus-
pected leak has been found.
(4) Repair as required.
CYLINDER COMPRESSION PRESSURE TEST
The results of a cylinder compression pressure test
can be utilized to diagnose several engine malfunc-
tions.
Ensure the battery is completely charged and the
engine starter motor is in good operating condition.
Otherwise the indicated compression pressures may
not be valid for diagnosis purposes.
(1) Check engine oil level and add oil if necessary.
(2) Drive the vehicle until engine reaches normal
operating temperature. Select a route free from traf-
fic and other forms of congestion, observe all traffic
laws, and accelerate through the gears several times
briskly.
(3) Remove all spark plugs from engine. As spark
plugs are being removed, check electrodes for abnor-
mal firing indicators fouled, hot, oily, etc. Record cyl-
inder number of spark plug for future reference.
(4) Disconnect coil wire from distributor and
secure to good ground to prevent a spark from start-
ing a fire (Conventional Ignition System). For Direct
Ignition System DIS disconnect the coil connector.
(5) Be sure throttle blade is fully open during the
compression check.
(6) Insert compression gage adaptor into the #1
spark plug hole in cylinder head. Crank engine until
maximum pressure is reached on gage. Record this
pressure as #1 cylinder pressure.
(7) Repeat the previous step for all remaining cyl-
inders.
(8) Compression should not be less than (689 kPa)
100 psi and not vary more than 25 percent from cyl-
inder to cylinder.
(9) If one or more cylinders have abnormally low
compression pressures, repeat the compression test.
(10) If the same cylinder or cylinders repeat an
abnormally low reading on the second compression
test, it could indicate the existence of a problem in
the cylinder in question.The recommended com-
pression pressures are to be used only as a
guide to diagnosing engine problems. An engine
9 - 8 ENGINEPL

should not be disassembled to determine the
cause of low compression unless some malfunc-
tion is present.
(11) Clean or replace spark plugs as necessary and
adjust gap as specified in Group 8, Electrical.
Tighten to specifications.
(12) Test resistance of spark plug cables. Refer to
Group 8, Electrical Ignition System Secondary Cir-
cuit Inspection.
(13) Test coil output voltage, primary and second-
ary resistance. Replace parts as necessary. Refer to
Group 8, Electrical Ignition System.
(14) Check fuel pump pressure at idle and differ-
ent RPM ranges. Refer to Group 14, Fuel System for
Specifications.
(15) The air filter elements should be replaced as
specified in Group 0, Lubrication and Maintenance.
(16) Inspect crankcase ventilation system as out
lined in Group 0, Lubrication and Maintenance. For
emission controls see Group 25, Emission Controls
for service procedures.
(17) Inspect and adjust accessory belt drives refer-
ring to Group 7, Cooling System, Accessory Drive
Belts for proper adjustments.
(18) Road test vehicle as a final test.
CYLINDER COMBUSTION PRESSURE LEAKAGE
TEST
The combustion pressure leakage test provides an
accurate means for determining engine condition.
Combustion pressure leakage testing will detect:
²Exhaust and intake valve leaks (improper seat-
ing).
²Leaks between adjacent cylinders or into water
jacket.
²Any causes for combustion/compression pressure
loss.
WARNING: DO NOT REMOVE THE RADIATOR CAP
WITH THE SYSTEM HOT AND UNDER PRESSURE
BECAUSE SERIOUS BURNS FROM COOLANT CAN
OCCUR.
Check the coolant level and fill as required. DO
NOT install the radiator cap.
Start and operate the engine until it attains nor-
mal operating temperature, then turn the engine
OFF.
Clean spark plug recesses with compressed air.
Remove the spark plugs.
Remove the oil filler cap.
Remove the air cleaner.
Calibrate the tester according to the manufactur-
er's instructions. The shop air source for testing
should maintain 483 kPa (70 psi) minimum, 1,379kPa (200 psi) maximum, with 552 kPa (80 psi) rec-
ommended.
Perform the test procedures on each cylinder
according to the tester manufacturer's instructions.
While testing, listen for pressurized air escaping
through the throttle body, tailpipe and oil filler cap
opening. Check for bubbles in the radiator coolant.
All gauge pressure indications should be equal,
with no more than 25% leakage per cylinder.
FOR EXAMPLE:At 552 kPa (80 psi) input pres-
sure, a minimum of 414 kPa (60 psi) should be main-
tained in the cylinder.
LASH ADJUSTER (TAPPET) NOISE DIAGNOSIS
A tappet-like noise may be produced from several
items. Check the following items.
(1) Engine oil level too high or too low. This may
cause aerated oil to enter the adjusters and cause
them to be spongy.
(2) Insufficient running time after rebuilding cylin-
der head. Low speed running up to 1 hour may be
required.
(3) During this time, turn engine off and let set for
a few minutes before restarting. Repeat this several
times after engine has reached normal operating
temperature.
(4) Low oil pressure.
(5) The oil restrictor pressed into the vertical oil
passage to the cylinder head is plugged with debris.
(6) Air ingested into oil due to broken or cracked
oil pump pick up.
(7) Worn valve guides.
(8) Rocker arm ears contacting valve spring
retainer.
(9) Rocker arm loose, adjuster stuck or at maxi-
mum extension and still leaves lash in the system.
(10) Faulty lash adjuster.
a. Check lash adjusters for sponginess while
installed in cylinder head. Depress part of rocker
arm over adjuster. Normal adjusters should feel very
firm. Spongy adjusters can be bottomed out easily.
b. Remove suspected rocker arms (sohc) or lash
adjuster (dohc) and replace.
ENGINE OIL LEAK INSPECTION
Begin with a thorough visual inspection of the
engine, particularly at the area of the suspected leak.
If an oil leak source is not readily identifiable, the
following steps should be followed:
(1) Do not clean or degrease the engine at this
time because some solvents may cause rubber to
swell, temporarily stopping the leak.
(2) Add an oil soluble dye (use as recommended by
manufacturer). Start the engine and let idle for
approximately 15 minutes. Check the oil dipstick to
PLENGINE 9 - 9
DIAGNOSIS AND TESTING (Continued)