Chrysler Dodge Caravan 2002 Manual page 1282

RS
ENGINE 3.3/3.8L (Continued)
CONDITION
MAIN BEARING NOISE
OIL PRESSURE DROP
OIL LEAKS
POSSIBLE CAUSES
1. Insufficient oil supply.
2. Low oil pressure.
3. Thin or diluted oil.
4. Thick oil
5. Excessive bearing clearance.
6. Excessive end play.
7. Crankshaft journal out-of-round
or worn.
8. Loose flywheel or torque
converter.
1. Low oil level.
2. Faulty oil pressure sensor/switch.
3. Low oil pressure.
4. Clogged oil filter.
5. Worn parts in oil pump.
6. Thin or diluted oil.
7. Oil pump relief valve stuck.
8. Oil pump suction tube loose.
9. Oil pump cover warped or
cracked.
10. Excessive bearing clearance.
1. Misaligned or deteriorated
gaskets.
2. Loose fastener, broken or porous
metal part.
3. Misaligned or deteriorated cup or
threaded plug.
ENGINE 3.3/3.8L
CORRECTION
1. Check engine oil level.
2. Check engine oil level. Inspect oil
pump relief valve and spring.
3. Change oil to correct viscosity.
4. (a) Change engine oil and filter.
(b) Run engine to operating
temperature.
(c) Change engine oil and filter
again.
5. Measure bearings for correct
clearance. Repair as necessary.
6. Check thrust bearing for wear on
flanges.
7. Replace crankshaft or grind
journals.
8. Tighten to correct torque.
1. Check engine oil level.
2. Replace oil pressure sensor/
switch.
3. Check oil pressure sensor/switch
and main bearing oil clearance.
4. Install new oil filter.
5. Replace worn parts or pump.
6. Change oil to correct viscosity.
7. Remove valve and inspect, clean,
or replace.
8. Remove oil pan and install new
tube or clean, if necessary.
9. Install new oil pump.
10. Measure bearings for correct
clearance.
1. Replace gasket(s).
2. Tighten, repair or replace the
part.
3. Replace as necessary.
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