2002 CHRYSLER CARAVAN oil change

(M) Check Engine Lamp (MIL) will illuminate during engine operation if this Diagnostic Trouble Code was recorded.
(G) Generator Lamp Illuminated
GENERIC
SCAN TOOL
CODEDRB SCAN TOOL DISPLAY DESCRIPTION OF DIAGNOSTIC TROUBLE CODE
P0330 Knock Sensor #2 Circuit Knock sensor (#2) signal above or below minimum
acceptable threshold voltage at particular engine speeds.
P0335 Crankshaft Position Sensor Circuit A rationality error has been detected for loss of crankshaft
position sensor.
P0339 Crankshaft Position Sensor Circuit
IntermittentA rationality error has been detected for intermittent loss of
crankshaft position sensor.
P0340 (M) Camshaft Position Sensor Circuit A rationality error has been detected for loss of camshaft
position sensor.
P0344 Camshaft Position Sensor Circuit
IntermittentA rationality error has been detected for intermittent loss of
camshaft position sensor.
P0350 Ignition Coil Draws Too Much Current A coil (1-5) is drawing too much current.
P0351 (M) Ignition Coil Primary # 1 Circuit Peak primary circuit current not achieved with maximum
dwell time.
P0352 (M) Ignition Coil Primary # 2 Circuit Peak primary circuit current not achieved with maximum
dwell time.
P0353 (M) Ignition Coil Primary # 3 Circuit Peak primary circuit current not achieved with maximum
dwell time.
P0354 (M) Ignition Coil Primary# 4 Circuit Peak primary circuit current not achieved with maximum
dwell time (High Impedance).
P0355 (M) Ignition Coil Primary # 5 Circuit Peak primary circuit current not achieved with maximum
dwell time (High Impedance).
P0356 (M) Ignition Coil Primary # 6 Circuit Peak primary circuit current not achieved with maximum
dwell time (high impedance).
P0357 Ignition Coil Primary # 7 Circuit Peak primary circuit current not achieved with maximum
dwell time (high impedance).
P0358 Ignition Coil Primary # 8 Circuit Peak primary circuit current not achieved with maximum
dwell time (high impedance).
P0400 Diesel EGR System Failure
P0401 (M) EGR System Failure Required change in air/fuel ration not detected during
diagnostic test.
P0403 (M) EGR Solenoid Circuit An open or shorted condition detected in the EGR solenoid
control circuit.
P0404 (M) EGR Position Sensor Rationality EGR position sensor signal does not correlate to EGR duty
cycle.
P0405 (M) EGR Position Sensor Volts Too Low EGR position sensor input below the acceptable voltage
range.
P0406 (M) EGR Position Sensor Volts Too High EGR position sensor input above the acceptable voltage
range.
P0412 Secondary Air Solenoid Circuit An open or shorted condition detected in the secondary air
(air switching/aspirator) solenoid control circuit.
P0420 (M) 1/1 Catalytic Converter Efficiency Catalyst 1/1 efficiency below required level.
P0432 (M) 1/2 Catalytic Converter Efficiency Catalyst 2/1 efficiency below required level.
P0440 General EVAP System Failure General system failure.
RSELECTRONIC CONTROL MODULES8E-17
POWERTRAIN CONTROL MODULE (Continued)
ProCarManuals.com

CLUTCH VOLUME INDEX (CVI)
An important function of the TCM is to monitor
Clutch Volume Index (CVI). CVIs represent the vol-
ume of fluid needed to compress a clutch pack.
The TCM monitors gear ratio changes by monitor-
ing the Input and Output Speed Sensors. The Input,
or Turbine Speed Sensor sends an electrical signal to
the TCM that represents input shaft rpm. The Out-
put Speed Sensor provides the TCM with output
shaft speed information.
By comparing the two inputs, the TCM can deter-
mine transaxle gear ratio. This is important to the
CVI calculation because the TCM determines CVIs
by monitoring how long it takes for a gear change to
occur (Fig. 15).
Gear ratios can be determined by using the DRB
Scan Tool and reading the Input/Output Speed Sen-
sor values in the ªMonitorsº display. Gear ratio can
be obtained by dividing the Input Speed Sensor value
by the Output Speed Sensor value.
For example, if the input shaft is rotating at 1000
rpm and the output shaft is rotating at 500 rpm,
then the TCM can determine that the gear ratio is
2:1. In direct drive (3rd gear), the gear ratio changes
to 1:1. The gear ratio changes as clutches are applied
and released. By monitoring the length of time it
takes for the gear ratio to change following a shift
request, the TCM can determine the volume of fluid
used to apply or release a friction element.
The volume of transmission fluid needed to apply
the friction elements are continuously updated for
adaptive controls. As friction material wears, the vol-
ume of fluid need to apply the element increases.
Certain mechanical problems within the clutch
assemblies (broken return springs, out of position
snap rings, excessive clutch pack clearance, improper
assembly, etc.) can cause inadequate or out-of-rangeclutch volumes. Also, defective Input/Output Speed
Sensors and wiring can cause these conditions. The
following chart identifies the appropriate clutch vol-
umes and when they are monitored/updated:
CLUTCH VOLUMES
ClutchWhen Updated
Proper Clutch
Volume
Shift Sequence Oil Temperature Throttle Angle
L/R2-1 or 3-1 coast
downshift>70É <5É 35to83
2/4 1-2 shift
> 110É5 - 54É20 to 77
OD 2-3 shift 48 to 150
UD 4-3 or 4-2 shift > 5É 24 to 70
Fig. 15 Example of CVI Calculation
1 - OUTPUT SPEED SENSOR
2 - OUTPUT SHAFT
3 - CLUTCH PACK
4 - SEPARATOR PLATE
5 - FRICTION DISCS
6 - INPUT SHAFT
7 - INPUT SPEED SENSOR
8 - PISTON AND SEAL
RSELECTRONIC CONTROL MODULES8E-29
TRANSMISSION CONTROL MODULE (Continued)
ProCarManuals.com

SHIFT SCHEDULES
As mentioned earlier, the TCM has programming that
allows it to select a variety of shift schedules. Shift
schedule selection is dependent on the following:
²Shift lever position
²Throttle position
²Engine load²Fluid temperature
²Software level
As driving conditions change, the TCM appropri-
ately adjusts the shift schedule. Refer to the follow-
ing chart to determine the appropriate operation
expected, depending on driving conditions.
Schedule Condition Expected Operation
Extreme ColdOil temperature at start-up below
-16É FPark, Reverse, Neutral and 2nd
gear only (prevents shifting which
may fail a clutch with frequent
shifts)
ColdOil temperature at start-up above
-12É F and below 36É F± Delayed 2-3 upshift
(approximately 22-31 mph)
± Delayed 3-4 upshift (45-53 mph)
± Early 4-3 costdown shift
(approximately 30 mph)
± Early 3-2 coastdown shift
(approximately 17 mph)
± High speed 4-2, 3-2, 2-1 kickdown
shifts are prevented
± No EMCC
WarmOil temperature at start-up above
36É F and below 80 degree F± Normal operation (upshift,
kickdowns, and coastdowns)
± No EMCC
HotOil temperature at start-up above
80É F± Normal operation (upshift,
kickdowns, and coastdowns)
± Full EMCC, no PEMCC except to
engage FEMCC (except at closed
throttle at speeds above 70-83 mph)
OverheatOil temperature above 240É F or
engine coolant temperature above
244É F± Delayed 2-3 upshift (25-32 mph)
± Delayed 3-4 upshift (41-48 mph)
± 3rd gear FEMCC from 30-48 mph
± 3rd gear PEMCC from 27-31 mph
Super OverheatOil temperature above 260É F ± All9Overheat9shift schedule
features apply
± 2nd gear PEMCC above 22 mph
± Above 22 mph the torque
converter will not unlock unless the
throttle is closed or if a wide open
throttle 2nd PEMCC to 1 kickdown
is made
8E - 30 ELECTRONIC CONTROL MODULESRS
TRANSMISSION CONTROL MODULE (Continued)
ProCarManuals.com

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
ProCarManuals.com

Component Page
C322 (Memory)..................... 8W-80-39
C322 (Memory)..................... 8W-80-39
C324 (Manual Sliding Door)........... 8W-80-39
C324 (Manual Sliding Door)........... 8W-80-40
C325 (Manual Sliding Door)........... 8W-80-40
C325 (Manual Sliding Door)........... 8W-80-40
C326............................. 8W-80-40
C326............................. 8W-80-40
C327............................. 8W-80-40
C327............................. 8W-80-41
C329 (Diesel)....................... 8W-80-41
C329 (Diesel)....................... 8W-80-41
C330 (Diesel)....................... 8W-80-41
C330 (Diesel)....................... 8W-80-41
C331 (Diesel)....................... 8W-80-42
C331 (Diesel)....................... 8W-80-42
C332 (ATC)........................ 8W-80-42
C332 (ATC)........................ 8W-80-42
Cabin Heater Assist C1 (Diesel)........ 8W-80-42
Cabin Heater Assist C2 (Diesel)........ 8W-80-43
Camshaft Position Sensor (Diesel)...... 8W-80-43
Camshaft Position Sensor (Gas)........ 8W-80-43
CD Changer....................... 8W-80-43
Center Dome Lamp (Base/High Line).... 8W-80-43
Center High Mounted Stop Lamp....... 8W-80-44
Clockspring C1..................... 8W-80-44
Clockspring C2..................... 8W-80-44
Clockspring C3..................... 8W-80-44
Clockspring C4..................... 8W-80-44
Clockspring C5..................... 8W-80-45
Clutch Pedal Interlock Switch (MTX).... 8W-80-45
Clutch Pedal Interlock Switch Jumper
(ATX) .......................... 8W-80-45
Clutch Pedal Upstop Switch (Diesel)..... 8W-80-45
Controller Antilock Brake............. 8W-80-46
Crank Case Ventilation Heater (Diesel) . . 8W-80-46
Crankshaft Position Sensor (Diesel)..... 8W-80-46
Crankshaft Position Sensor (Gas)....... 8W-80-47
Data Link Connector................. 8W-80-47
Diagnostic Junction Port.............. 8W-80-47
Dosing Pump (Diesel)................ 8W-80-48
Driver Airbag C1.................... 8W-80-48
Driver Airbag C2.................... 8W-80-48
Driver Blend Door Actuator (ATC)...... 8W-80-48
Driver Blend Door Actuator (MTC)...... 8W-80-48
Driver Door Courtesy Lamp........... 8W-80-49
Driver Door Lock Switch.............. 8W-80-49
Driver Heated Seat Back............. 8W-80-49
Driver Heated Seat Cushion........... 8W-80-49
Driver Heated Seat Module C1......... 8W-80-49
Driver Heated Seat Module C2......... 8W-80-50
Driver Heated Seat Module C3......... 8W-80-50
Driver Power Seat Front Riser Motor.... 8W-80-50Component Page
Driver Power Seat Front Riser
Position Sensor................... 8W-80-50
Driver Power Seat Horizontal Motor..... 8W-80-50
Driver Power Seat Horizontal
Position Sensor................... 8W-80-51
Driver Power Seat Rear Riser Motor.... 8W-80-51
Driver Power Seat Rear Riser
Position Sensor................... 8W-80-51
Driver Power Seat Recliner Motor...... 8W-80-51
Driver Power Seat Recliner
Position Sensor................... 8W-80-51
Driver Power Seat Switch............. 8W-80-52
Driver Power Window Motor........... 8W-80-52
Driver Power Window Switch
(Except Lowline).................. 8W-80-52
Driver Power Window Switch (Lowline) . . 8W-80-53
Driver Power Window Switch (RHD).... 8W-80-53
Driver Seat Belt Switch.............. 8W-80-53
Driver Seat Belt Tensioner............ 8W-80-53
EGR Solenoid (Diesel)................ 8W-80-54
EGR Solenoid (Gas)................. 8W-80-54
Electric Wiper De-Icer C1............. 8W-80-54
Electric Wiper De-Icer C2............. 8W-80-54
Engine Control Module C1 (Diesel)...... 8W-80-55
Engine Control Module C2 (Diesel)...... 8W-80-57
Engine Coolant Temp Sensor (Diesel).... 8W-80-57
Engine Coolant Temp Sensor (Gas)...... 8W-80-58
Engine Oil Pressure Sensor (Diesel)..... 8W-80-58
Engine Oil Pressure Switch (Gas)....... 8W-80-58
Engine Oil Temperature Sensor (Diesel) . . 8W-80-58
EVAP/Purge Solenoid (Gas)............ 8W-80-58
Evaporator Temperature Sensor........ 8W-80-59
Floor Console Lamp................. 8W-80-59
Floor Console Power Outlet........... 8W-80-59
Front Blower Module C1 (ATC)......... 8W-80-59
Front Blower Module C2 (ATC)......... 8W-80-59
Front Cigar Lighter................. 8W-80-60
Front Reading Lamps/Switch.......... 8W-80-60
Front Washer Pump Motor............ 8W-80-60
Fuel Heater (Diesel)................. 8W-80-60
Fuel Injector No. 1 (2.4L/3.3L/3.8L)..... 8W-80-60
Fuel Injector No. 1 (Diesel)............ 8W-80-61
Fuel Injector No. 2 (2.4L/3.3L/3.8L)..... 8W-80-61
Fuel Injector No. 2 (Diesel)............ 8W-80-61
Fuel Injector No. 3 (2.4L/3.3L/3.8L)..... 8W-80-61
Fuel Injector No. 3 (Diesel)............ 8W-80-61
Fuel Injector No. 4 (2.4L/3.3L/3.8L)..... 8W-80-62
Fuel Injector No. 4 (Diesel)............ 8W-80-62
Fuel Injector No. 5 (3.3L/3.8L)......... 8W-80-62
Fuel Injector No. 6 (3.3L/3.8L)......... 8W-80-62
Fuel Pressure Sensor (Diesel).......... 8W-80-62
Fuel Pressure Solenoid (Diesel)......... 8W-80-63
Fuel Pump Module.................. 8W-80-63
Generator......................... 8W-80-63
8W - 80 - 2 8W-80 CONNECTOR PIN-OUTSRS
ProCarManuals.com

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