2002 CHRYSLER TOWN AND COUNTRY oil level

8W-02 COMPONENT INDEX
Component Page
A/C Compressor Clutch Relay............ 8W-42
A/C Compressor Clutch................. 8W-42
A/C- Heater Control.................... 8W-42
A/C Pressure Sensor................... 8W-42
A/C-Heater Control.................... 8W-42
Accelerator Pedal Position Sensor......... 8W-30
Accessory Relay....................... 8W-10
Adjustable Pedals Module............... 8W-30
Adjustable Pedals Switch................ 8W-30
Airbag Control Module.................. 8W-43
Ambient Temp Sensor.................. 8W-49
Antenna............................. 8W-47
Auto Shut Down Relay................. 8W-30
Auto Temp Control..................... 8W-42
Automatic Day/Night Mirror............. 8W-49
Back-Up Lamp Switch.................. 8W-51
Battery Temperature Sensor............. 8W-20
Battery............................. 8W-20
Blend Door Actuators................... 8W-42
Body Control Module................... 8W-45
Boost Pressure Sensor.................. 8W-30
B-Pillar Switches...................... 8W-61
Brake Lamp Switch................. 8W-30, 51
Brake Transmission Shift Interlock
Solenoid........................... 8W-31
Cabin Heater Assist.................... 8W-30
Camshaft Position Sensor............... 8W-30
CD Changer.......................... 8W-47
Center High Mounted Stop Lamp......... 8W-51
Cinch/Release Motors................... 8W-61
Clockspring.................. 8W-33, 41, 43, 47
Clutch Pedal Interlock Switch Jumper..... 8W-10
Clutch Pedal Interlock Switch............ 8W-10
Combination Relays.................... 8W-54
Controller Antilock Brake............... 8W-35
Crank Case Ventilation Heater........... 8W-30
Crankshaft Position Sensor.............. 8W-30
Cylinder Lock Switches................. 8W-39
Data Link Connector................... 8W-18
Diagnostic Junction Port................ 8W-18
Door Ajar Switches.................... 8W-39
Door Lock Motor/Ajar Switches........... 8W-61
Door Lock Switches.................... 8W-61
Driver Airbag......................... 8W-43
EGR Solenoid......................... 8W-30
Electric Wiper De-Icer.................. 8W-48
Engine Control Module................. 8W-30
Engine Coolant Temp Sensor............. 8W-30
Engine Oil Pressure Switch.............. 8W-30
EVAP/Purge Solenoid................... 8W-30
Evaporator Temperature Sensor.......... 8W-42
Floor Console Lamp.................... 8W-44Component Page
Fog Lamps........................... 8W-50
Front Blower Module................... 8W-42
Front Blower Motor Relay............... 8W-42
Front Blower Motor.................... 8W-42
Front Cigar Lighter.................... 8W-41
Front Control Module.................. 8W-10
Front Fog Lamp Relay.................. 8W-50
Front Intrusion Sensor................. 8W-39
Front Washer Pump Motor.............. 8W-53
Front Wiper On/Off Relay............... 8W-53
Fuel Heater.......................... 8W-30
Fuel Injectors........................ 8W-30
Fuel Pressure Solenoid................. 8W-30
Fuel Pump Module.................... 8W-30
Full Open Switches.................... 8W-61
Fuselink............................. 8W-10
Fuses............................... 8W-10
Generator............................ 8W-20
Glow Plug Relay...................... 8W-30
Glow Plugs........................... 8W-30
Grounds............................. 8W-15
Halo Lamp........................... 8W-44
Headlamp Leveling Motors.............. 8W-50
Headlamp Switch...................... 8W-50
Headlamp Washer Relay................ 8W-53
Headlamps........................... 8W-50
Heated Seat Backs..................... 8W-63
Heated Seat Cushions.................. 8W-63
Heated Seat Modules................... 8W-63
High Beam Lamps..................... 8W-50
High Note Horn....................... 8W-41
Horn Relay.......................... 8W-41
Idle Air Control Motor.................. 8W-30
Ignition Coil.......................... 8W-30
Ignition Switch....................... 8W-10
Inlet Air Temperature Sensor............ 8W-30
Instrument Cluster.................... 8W-40
Instrument Panel Switch Bank . . 8W-44, 52, 53, 63
Integrated Power Module................ 8W-10
Knock Sensor......................... 8W-30
License Lamp......................... 8W-51
Lift Pump Motor...................... 8W-30
Liftgate Ajar Switch................. 8W-39, 61
Liftgate Cinch/Release Motor............. 8W-61
Liftgate Cylinder Lock Switch............ 8W-39
Liftgate Flood Lamps................... 8W-44
Liftgate Right Pinch Sensor.............. 8W-61
Low Beam Lamps.................... 8W-50-9
Manifold Absolute Pressure Sensor........ 8W-30
Mass Air Flow Sensor.................. 8W-30
Memory Seat/Mirror Module.......... 8W-62, 63
Memory Set Switch.................... 8W-63
RS8W-02 COMPONENT INDEX8W-02-1
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Component Page
Headlamp Washer Pump Motor....... 8W-10-26, 52
Headlamp Washer Relay......... 8W-10-26, 52, 63
High Note Horn..................... 8W-10-36
Horn Relay................... 8W-10-17, 36, 59
Ignition Coil........................ 8W-10-42
Ignition Switch . . 8W-10-18, 25, 37, 45, 46, 48, 53, 54,
60
Instrument Cluster................ 8W-10-25, 51
Integrated Power Module . . . 8W-10-3, 4, 5, 13, 15, 16,
17, 18, 19, 20, 21, 22, 23,
24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 36, 37, 38, 39,
40, 41, 42, 43, 44, 45, 46,
47, 48, 49, 51, 52, 53, 54,
55, 56, 57, 58, 59, 60, 61,
62, 63, 64, 65, 66, 68
Leak Detection Pump................. 8W-10-46
Left B-Pillar Switch.................. 8W-10-33
Left Combination Relay............... 8W-10-67
Left Fog Lamp................... 8W-10-15, 27
Left Front Park/Turn Signal
Lamp................... 8W-10-15, 28, 56, 65
Left Headlamp...................... 8W-10-57
Left Headlamp Leveling Motor..... 8W-10-29, 62, 65
Left High Beam Lamp................ 8W-10-58
Left Low Beam Lamp................. 8W-10-58
Left Park Lamp................... 8W-10-29, 65
Left Power Mirror.................... 8W-10-39
Left Rear Lamp Assembly . . . 8W-10-28, 29, 65, 66, 67
Left Repeater Lamp.................. 8W-10-51
Left Side Impact Airbag Control Module . . . 8W-10-62
Left Sliding Door Control Module........ 8W-10-52
Left Stop/Turn Signal Relay............ 8W-10-67
Left Turn Signal Lamp................ 8W-10-56
License Lamp................. 8W-10-28, 29, 65
Lift Pump Motor.................. 8W-10-23, 43
Lift Pump Relay.................. 8W-10-23, 43
Low Note Horn...................... 8W-10-36
Mass Air Flow Sensor................. 8W-10-44
Memory Seat/Mirror Module............ 8W-10-49
Message Center..................... 8W-10-51
Name Brand Speaker Relay....... 8W-10-20, 39, 59
Overhead Console.................... 8W-10-40
Oxygen Sensor 1/1 Upstream........... 8W-10-42
Oxygen Sensor 1/2 Downstream......... 8W-10-42
Park Lamp Relay............ 8W-10-15, 28, 29, 59
Park/Neutral Position Switch........... 8W-10-65
Passenger Door Lock Switch......... 8W-10-31, 33
Passenger Folding Mirror Relay . 8W-10-22, 24, 45, 47
Passenger Heated Seat Module.......... 8W-10-50
Passenger Power Seat Switch........... 8W-10-50
Passenger Power Window Switch........ 8W-10-31
Power Liftgate Module............. 8W-10-26, 52
Power Mirror Switch......... 8W-10-22, 24, 46, 47
Power Outlet....................... 8W-10-36
Component Page
Power Seat Circuit Breaker.......... 8W-10-25, 49
Power Window Circuit Breaker....... 8W-10-16, 31
Power Window Switch................. 8W-10-34
Powertrain Control
Module.... 8W-10-18, 21, 22, 37, 41, 42, 45, 46, 55
PTC4 .......................... 8W-10-20, 39
PTC7 .................... 8W-10-16, 17, 18, 36
Radiator Fan Relay............. 8W-10-26, 51, 55
Radiator Fan Relay No. 1........... 8W-10-13, 44
Radiator Fan Relay No. 2......... 8W-10-26, 44, 51
Radiator Fan Relay No. 3.............. 8W-10-44
Radio.......................... 8W-10-32, 40
Radio Choke..................... 8W-10-20, 39
Rear A/C-Heater Unit.............. 8W-10-19, 38
Rear Blower Motor Power Module..... 8W-10-19, 38
Rear Blower Motor Relay...... 8W-10-19, 20, 38, 63
Rear Power Outlet.............. 8W-10-16, 31, 32
Rear Washer Pump Motor........ 8W-10-16, 31, 68
Rear Window Defogger Grid......... 8W-10-20, 39
Rear Wiper Motor.................... 8W-10-33
Remote Keyless Entry Module........... 8W-10-40
Right B-Pillar Switch................. 8W-10-33
Right Combination Relay.............. 8W-10-67
Right Fog Lamp.................. 8W-10-15, 27
Right Front Park/Turn Signal
Lamp................... 8W-10-15, 28, 56, 60
Right Headlamp..................... 8W-10-57
Right Headlamp Leveling Motor.... 8W-10-29, 60, 62
Right High Beam Lamp............... 8W-10-58
Right Low Beam Lamp................ 8W-10-58
Right Park Lamp................. 8W-10-29, 60
Right Power Mirror................... 8W-10-39
Right Rear Lamp Assembly.... 8W-10-15, 28, 29, 66
Right Repeater Lamp................. 8W-10-51
Right Side Impact Airbag Control Module . . 8W-10-62
Right Sliding Door Control Module....... 8W-10-52
Right Stop/Turn Signal Relay........... 8W-10-67
Right Turn Signal Lamp............... 8W-10-56
Sentry Key Immobilizer
Module............... 8W-10-40, 46, 48, 53, 54
Solenoid/Pressure Switch Assy.......... 8W-10-41
Starter Motor............... 8W-10-13, 14, 18, 37
Starter Motor Relay.......... 8W-10-18, 37, 53, 54
Thatcham Alarm Module...... 8W-10-46, 48, 54, 68
Torque Converter Clutch Solenoid........ 8W-10-46
Trailer Tow Connector.............. 8W-10-28, 65
Transmission Control
Module............ 8W-10-18, 21, 37, 41, 61, 62
Transmission Control Relay.......... 8W-10-21, 41
Transmission Range Sensor............. 8W-10-65
TXV Solenoid....................... 8W-10-38
Vehicle Speed Sensor................. 8W-10-43
Washer Fluid Level Switch............. 8W-10-60
Wiper Module................. 8W-10-16, 30, 59
8W - 10 - 2 8W-10 POWER DISTRIBUTIONRS
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8W-40 INSTRUMENT CLUSTER
Component Page
Airbag Control Module................ 8W-40-2
Body Control Module....... 8W-40-2, 3, 4, 5, 6, 7,
8, 9, 10, 11
Brake Fluid Level Switch.............. 8W-40-9
Clockspring......................... 8W-40-9
Diagnostic Junction Port...... 8W-40-2, 3, 4, 5, 6,
7, 8, 9, 12
Engine Control Module........... 8W-40-8, 9, 12
Engine Coolant Temp Sensor......... 8W-40-7, 8
Engine Oil Pressure Sensor........... 8W-40-12
Engine Oil Pressure Switch........... 8W-40-12
Front Control Module................. 8W-40-9
Fuel Pump Module................... 8W-40-2
Fuse 24............................ 8W-40-2
G200..................... 8W-40-2, 10, 11, 12
G300.............................. 8W-40-9
Instrument Cluster....... 8W-40-2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12
Integrated Power Module............ 8W-40-2, 9
Left Front Door Ajar Switch............ 8W-40-3
Left Front Door Lock Motor/Ajar Switch . . . 8W-40-3
Left Sliding Door Control Module........ 8W-40-4
Left Sliding Door Latch Sensing Switch . . . 8W-40-4Component Page
Left Sliding Door Lock Motor/Ajar
Switch........................... 8W-40-4
Left Speed Control Switch............. 8W-40-9
Liftgate Ajar Switch.................. 8W-40-3
Liftgate Cinch/Release Motor........... 8W-40-3
Message Center................... 8W-40-6, 12
Multi- Function Switch................ 8W-40-6
Parking Brake Switch............. 8W-40-10, 11
Powertrain Control Module........ 8W-40-7, 9, 12
Right Front Door Ajar Switch........... 8W-40-3
Right Front Door Lock Motor/Ajar
Switch........................... 8W-40-3
Right Sliding Door Control Module....... 8W-40-5
Right Sliding Door Latch Sensing
Switch........................... 8W-40-5
Right Sliding Door Lock Motor/Ajar
Switch........................... 8W-40-5
Right Speed Control Switch............ 8W-40-9
Traction Control Switch............. 8W-40-7, 8
Transmission Control Module........... 8W-40-7
Vehicle Speed Sensor............... 8W-40-7, 8
Washer Fluid Level Switch............. 8W-40-9
RS8W-40 INSTRUMENT CLUSTER8W-40-1
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Component Page
Glove Box Lamp.................... 8W-80-63
Glow Plug Relay (Diesel).............. 8W-80-63
Halo Lamp........................ 8W-80-63
Headlamp Switch................... 8W-80-64
Headlamp Washer Pump Motor
(Built-Up-Export)................. 8W-80-64
High Note Horn.................... 8W-80-64
Hood Ajar Switch................... 8W-80-64
Idle Air Control Motor (2.4L).......... 8W-80-64
Idle Air Control Motor (3.3L/3.8L)....... 8W-80-65
Ignition Coil (2.4L).................. 8W-80-65
Ignition Coil (3.3L/3.8L).............. 8W-80-65
Ignition Switch..................... 8W-80-65
Inlet Air Temperature Sensor.......... 8W-80-65
Input Speed Sensor (EATX)........... 8W-80-66
Instrument Cluster.................. 8W-80-66
Instrument Panel Switch Bank......... 8W-80-66
Integrated Power Module C1.......... 8W-80-67
Integrated Power Module C2.......... 8W-80-67
Integrated Power Module C3 (Diesel).... 8W-80-68
Integrated Power Module C3 (Gas)...... 8W-80-68
Integrated Power Module C4.......... 8W-80-69
Integrated Power Module C5.......... 8W-80-69
Integrated Power Module C6.......... 8W-80-69
Integrated Power Module C7.......... 8W-80-70
Integrated Power Module C8.......... 8W-80-70
Integrated Power Module C9.......... 8W-80-71
Knock Sensor (2.4L)................. 8W-80-71
Knock Sensor (3.3L/3.8L) (Except
Built-Up-Export).................. 8W-80-71
Leak Detection Pump (Except
Built-Up-Export).................. 8W-80-71
Left B-Pillar Switch (Power
Sliding Door)..................... 8W-80-72
Left Cinch/Release Motor (Power
Sliding Door)..................... 8W-80-72
Left Combination Relay (Trailer Tow).... 8W-80-72
Left Cylinder Lock Switch............. 8W-80-72
Left Door Speaker................... 8W-80-72
Left Fog Lamp (Built-Up-Export)....... 8W-80-73
Left Fog Lamp (Except
Built-Up-Export).................. 8W-80-73
Left Front Door Ajar Switch (Base)...... 8W-80-73
Left Front Door Lock Motor/Ajar Switch
(Except Base).................... 8W-80-73
Left Front Park/Turn Signal Lamp
(Except Built-Up-Export)........... 8W-80-73
Left Front Wheel Speed Sensor......... 8W-80-74
Left Full Open Switch
(Power Sliding Door)............... 8W-80-74
Left Headlamp (Except Built-Up-Export) . 8W-80-74
Left Headlamp Leveling Motor
(Built-Up-Export)................. 8W-80-74
Left High Beam Lamp
(Built-Up-Export)................. 8W-80-74Component Page
Left Instrument Panel Speaker......... 8W-80-75
Left Liftgate Flood Lamp............. 8W-80-75
Left Low Beam Lamp (Built-Up-Export) . . 8W-80-75
Left Mid Reading Lamp
(Premium/Luxury)................. 8W-80-75
Left Park Lamp (Built-Up-Export)...... 8W-80-75
Left Power Mirror................... 8W-80-76
Left Rear Lamp Assembly............. 8W-80-76
Left Rear Pillar Speaker.............. 8W-80-76
Left Rear Reading Lamp (Luxury)...... 8W-80-76
Left Rear Speaker................... 8W-80-77
Left Rear Vent Motor................ 8W-80-77
Left Rear Wheel Speed Sensor......... 8W-80-77
Left Remote Radio Switch............. 8W-80-77
Left Repeater Lamp (Built-Up-Export) . . . 8W-80-77
Left Seat Airbag.................... 8W-80-78
Left Side Impact Airbag Control Module . . 8W-80-78
Left Sliding Door Control Module C1
(Power Sliding Door)............... 8W-80-78
Left Sliding Door Control Module C2
(Power Sliding Door)............... 8W-80-78
Left Sliding Door Latch Sensing Switch
(Power Sliding Door)............... 8W-80-79
Left Sliding Door Lock Motor
(Power Sliding Door)............... 8W-80-79
Left Sliding Door Lock Motor/Ajar Switch
(Manual Sliding Door).............. 8W-80-79
Left Sliding Door Motor
(Power Sliding Door)............... 8W-80-79
Left Speed Control Switch............ 8W-80-79
Left Stop/Turn Signal Relay (Trailer Tow) . 8W-80-80
Left Turn Signal Lamp (Built-Up-Export) . 8W-80-80
Left Visor/Vanity Lamp
(Premium/Luxury)................. 8W-80-80
License Lamp (Manual Release)........ 8W-80-80
License Lamp (Power Liftgate)......... 8W-80-80
License Lamp (Power Release)......... 8W-80-81
Lift Pump Motor (Diesel)............. 8W-80-81
Liftgate Ajar Switch (Manual Release) . . . 8W-80-81
Liftgate Ajar Switch (Power Release).... 8W-80-81
Liftgate Cinch/Release Motor
(Power Liftgate).................. 8W-80-81
Liftgate Cylinder Lock Switch.......... 8W-80-82
Liftgate Left Pinch Sensor
(Power Liftgate).................. 8W-80-82
Liftgate Right Pinch Sensor
(Power Liftgate).................. 8W-80-82
Low Note Horn..................... 8W-80-82
Manifold Absolute Pressure Sensor
(Gas)........................... 8W-80-82
Mass Air Flow Sensor (Diesel)......... 8W-80-83
Memory Seat/Mirror Module C1........ 8W-80-83
Memory Seat/Mirror Module C2........ 8W-80-84
Memory Seat/Mirror Module C3........ 8W-80-84
Memory Seat/Mirror Module C4........ 8W-80-84
RS8W-80 CONNECTOR PIN-OUTS8W-80-3
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VALVE SPRINGS & SEALS
REMOVAL
REMOVAL - CYLINDER HEAD ON.........32
REMOVAL - CYLINDER HEAD OFF........33
INSPECTION..........................33
INSTALLATION
INSTALLATION - CYLINDER HEAD ON.....33
INSTALLATION - CYLINDER HEAD OFF....33
HYDRAULIC LASH ADJUSTERS
DIAGNOSIS AND TESTING - HYDRAULIC
LASH ADJUSTER NOISE DIAGNOSIS......34
REMOVAL.............................34
INSTALLATION.........................34
ROCKER ARMS
REMOVAL.............................35
INSPECTION..........................35
INSTALLATION.........................35
ENGINE BLOCK
DESCRIPTION.........................35
STANDARD PROCEDURE
STANDARD PROCEDURE - PISTON TO
CYLINDER BORE FITTING..............36
STANDARD PROCEDURE - CYLINDER
BORE HONING.......................36
CLEANING............................37
INSPECTION..........................37
CONNECTING ROD BEARINGS
STANDARD PROCEDURE
CONNECTING ROD - FITTING...........37
CRANKSHAFT
DESCRIPTION.........................38
OPERATION...........................38
STANDARD PROCEDURE - CRANKSHAFT
ENDPLAY ...........................38
REMOVAL.............................38
INSPECTION..........................39
INSTALLATION.........................39
CRANKSHAFT MAIN BEARINGS
STANDARD PROCEDURE - MAIN BEARING -
FITTING.............................41
CRANKSHAFT OIL SEAL - FRONT
REMOVAL.............................42
INSTALLATION.........................43
CRANKSHAFT OIL SEAL - REAR
REMOVAL.............................43
INSTALLATION.........................44
PISTON & CONNECTING ROD
DESCRIPTION.........................45
OPERATION...........................45
REMOVAL.............................45
INSTALLATION.........................46
PISTON RINGS
STANDARD PROCEDURE
PISTON RING - FITTING................47
VIBRATION DAMPER
REMOVAL.............................48
INSTALLATION.........................48STRUCTURAL COLLAR
REMOVAL.............................49
INSTALLATION.........................49
ENGINE MOUNTING
DESCRIPTION.........................49
FRONT MOUNT
REMOVAL.............................49
INSTALLATION.........................50
LEFT MOUNT
REMOVAL.............................50
INSTALLATION.........................50
REAR MOUNT
REMOVAL.............................51
INSTALLATION.........................51
RIGHT MOUNT
REMOVAL.............................52
INSTALLATION.........................52
LUBRICATION
DESCRIPTION.........................53
OPERATION...........................53
DIAGNOSIS AND TESTING - CHECKING
ENGINE OIL PRESSURE................53
OIL
STANDARD PROCEDURE
ENGINE OIL LEVEL CHECK.............53
STANDARD PROCEDURE - ENGINE OIL
AND FILTER CHANGE..................54
OIL FILTER
DESCRIPTION.........................54
REMOVAL.............................54
INSTALLATION.........................55
OIL PAN
REMOVAL.............................55
INSTALLATION.........................55
OIL PRESSURE SWITCH
REMOVAL.............................55
INSTALLATION.........................55
OIL PUMP
REMOVAL.............................55
DISASSEMBLY.........................56
CLEANING............................57
INSPECTION..........................57
ASSEMBLY............................58
INSTALLATION.........................58
INTAKE MANIFOLD
DESCRIPTION.........................59
OPERATION...........................59
DIAGNOSIS AND TESTING - INTAKE
MANIFOLD LEAKS.....................59
INTAKE MANIFOLD - UPPER
REMOVAL.............................60
INSPECTION..........................61
INSTALLATION.........................61
INTAKE MANIFOLD - LOWER
REMOVAL.............................61
INSPECTION..........................61
INSTALLATION.........................61
9 - 2 ENGINE 2.4LRS
ProCarManuals.com

DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - MECHANICAL
CONDITION POSSIBLE CAUSES CORRECTION
NOISY VALVES 1. High or low oil level in
crankcase.1. Check and correct engine oil
level.
2. Thin or diluted oil. 2. Change oil to correct viscosity.
3. Thick oil 3. (a) Change engine oil and filter.
(b) Run engine to operating
temperature.
(c) Change engine oil and filter
again.
4. Low oil pressure. 4. Check and correct engine oil
pressure problem.
5. Dirt in hydraulic lifters/lash
adjusters.5. Replace hydraulic lifters/lash
adjusters.
6. Worn rocker arms. 6. Inspect oil supply to rocker arms.
7. Worn hydraulic lifters/lash
adjusters.7. Replace hydraulic lifters/lash
adjusters.
8. Worn valve guides. 8. Replace cylinder head assembly.
9. Excessive runout of valve seats
on valve faces.9. Grind valve seats and valves.
CONNECTING ROD NOISE 1. Insufficient oil supply. 1. Check engine oil level.
2. Low oil pressure. 2. Check engine oil level. Inspect oil
pump relief valve and spring.
3. Thin or diluted oil. 3. Change oil to correct viscosity.
4. Thick oil 4. (a) Change engine oil and filter.
(b) Run engine to operating
temperature.
(c) Change engine oil and filter
again.
5. Excessive bearing clearance. 5. Measure bearings for correct
clearance. Repair as necessary.
6. Connecting rod journal
out-of-round.6. Replace crankshaft or grind
surface.
7. Misaligned connecting rods. 7. Replace bent connecting rods.
9 - 6 ENGINE 2.4LRS
ENGINE 2.4L (Continued)
ProCarManuals.com

CONDITION POSSIBLE CAUSES CORRECTION
MAIN BEARING NOISE 1. Insufficient oil supply. 1. Check engine oil level.
2. Low oil pressure. 2. Check engine oil level. Inspect oil
pump relief valve and spring.
3. Thin or diluted oil. 3. Change oil to correct viscosity.
4. Thick oil 4. (a) Change engine oil and filter.
(b) Run engine to operating
temperature.
(c) Change engine oil and filter
again.
5. Excessive bearing clearance. 5. Measure bearings for correct
clearance. Repair as necessary.
6. Excessive end play. 6. Check thrust bearing for wear on
flanges.
7. Crankshaft journal out-of-round
or worn.7. Replace crankshaft or grind
journals.
8. Loose flywheel or torque
converter.8. Tighten to correct torque.
OIL PRESSURE DROP 1. Low oil level. 1. Check engine oil level.
2. Faulty oil pressure sensor/switch. 2. Replace oil pressure sensor/
switch.
3. Low oil pressure. 3. Check oil pressure sensor/switch
and main bearing oil clearance.
4. Clogged oil filter. 4. Install new oil filter.
5. Worn parts in oil pump. 5. Replace worn parts or pump.
6. Thin or diluted oil. 6. Change oil to correct viscosity.
7. Oil pump relief valve stuck. 7. Remove valve and inspect, clean,
or replace.
8. Oil pump suction tube loose. 8. Remove oil pan and install new
tube or clean, if necessary.
9. Oil pump cover warped or
cracked.9. Install new oil pump.
10. Excessive bearing clearance. 10. Measure bearings for correct
clearance.
OIL LEAKS 1. Misaligned or deteriorated
gaskets.1. Replace gasket(s).
2. Loose fastener, broken or porous
metal part.2. Tighten, repair or replace the
part.
3. Misaligned or deteriorated cup or
threaded plug.3. Replace as necessary.
RSENGINE 2.4L9-7
ENGINE 2.4L (Continued)
ProCarManuals.com

(3) Remove torque converter or clutch housing
cover and inspect rear of block for evidence of oil.
Use a black light to check for the oil leak. If a leak is
present in this area, remove transmission for further
inspection.
(a) Circular spray pattern generally indicates
seal leakage or crankshaft damage.
(b) Where leakage tends to run straight down,
possible causes are a porous block, oil gallery cup
plug, bedplate to cylinder block mating surfaces
and seal bore. See proper repair procedures for
these items.
(4) If no leaks are detected, pressurize the crank-
case as previously described.
CAUTION: Do not exceed 20.6 kPa (3 psi).
(5) If the leak is not detected, very slowly turn the
crankshaft and watch for leakage. If a leak is
detected between the crankshaft and seal while
slowly turning the crankshaft, it is possible the
crankshaft seal surface is damaged. The seal area on
the crankshaft could have minor nicks or scratches
that can be polished out with emery cloth.
CAUTION: Use extreme caution when crankshaft
polishing is necessary to remove minor nicks and
scratches. The crankshaft seal flange is especially
machined to complement the function of the rear oil
seal.
(6) For bubbles that remain steady with shaft
rotation, no further inspection can be done until dis-
assembled.
(7) After the oil leak root cause and appropriate
corrective action have been identified, replace compo-
nent(s) as necessary.
DIAGNOSIS AND TESTING - 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) Remove the Auto Shutdown (ASD) relay from
the PDC.
(5) Be sure throttle blade is fully open during the
compression check.
(6) Insert compression gauge adaptor Special Tool
8116 or the equivalent, into the #1 spark plug hole in
cylinder head. Connect the 0±500 psi (Blue) pressure
transducer (Special Tool CH7059) with cable adap-
tors to the DRBIIIt. For Special Tool identification,
(Refer to 9 - ENGINE - SPECIAL TOOLS).
(7) Crank engine until maximum pressure is
reached on gauge. Record this pressure as #1 cylin-
der pressure.
(8) Repeat the previous step for all remaining cyl-
inders.
(9) Compression should not be less than 689 kPa
(100 psi) and not vary more than 25 percent from cyl-
inder to cylinder.
(10) If one or more cylinders have abnormally low
compression pressures, repeat the compression test.
(11) 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
should not be disassembled to determine the
cause of low compression unless some malfunc-
tion is present.
DIAGNOSIS AND TESTING - 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 PRESSURE 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 pressure 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.
RSENGINE 2.4L9-9
ENGINE 2.4L (Continued)
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