Engine - Oil Leak Diagnosis
NO: 09-17-94GROUP: Engine
DATE: Oct. 14, 1994
SUBJECT:
Oil Leak Diagnosis
MODELS:
1989 - 1995 (AA) Acclaim/Spirit/LeBaron Sedan
1989 - 1993 (AC) Dynasty/New Yorker/New Yorker Salon
1989 - 1993 (AG) Daytona
1989 - 1995 (AJ) LeBaron Coupe/LeBaron Convertible
1989 - 1994 (AP) Sundance/Shadow/Shadow Convertible
1990 - 1991 (AQ) Chrysler TC
1989 - 1995 (AS) Caravan/Voyager/Town & Country
1990 - 1993 (AY) Imperial/New Yorker Fifth Avenue
1993 - 1995 (LH) Concorde/Intrepid/Vision/LHS/New Yorker
1995 (PL) Neon
1989 - 1995 (ES) Chrysler Voyager (European Market)
SYMPTOM/CONDITION:
Any engine oil leak.
DISCUSSION:
Various conditions may cause an engine oil leak. Some conditions may be found easily by the technician, while other conditions are not readily apparent. To effectively repair all engine oil leaks, the following procedures apply.
PARTS REQUIRED:
AR ST-3090-2401 Dye-Lite Gas Engine Oil Systems (Available from P.S.E.)
REPAIR PROCEDURE:
This bulletin involves adding oil soluble dye to all engines that exhibit an oil leak prior to attempting diagnosis or repair.
DYE TEST
NOTE:
A THOROUGH ENGINE OIL LEAK TEST MUST BE PERFORMED.
1. Do not clean or degrease the engine at this time because some solvents may cause rubber to swell and temporarily stop the leak.
2. Add an oil soluble dye to the engine (use as recommended by the manufacturer). Start the engine and let idle for approximately 15 minutes. Check the oil dipstick to make sure the dye is thoroughly mixed as indicated with a bright yellow color under a black light.
3. Using a black light, inspect the entire engine for florescent dye. If the oil leak is found and identified, repair per Service Manual instructions.
4. If dye is not observed, drive the vehicle at various speeds for approximately 15 miles (24 km) and repeat step # 2. If an oil leak is not detected, proceed to the air pressure oil leak test.
AIR PRESSURE TEST
1. Disconnect the battery.
2. Raise the vehicle.
3. Inspect the engine for evidence of oil. Use a black light to check for the oil leak.
4. Attach an air hose with a pressure gauge and regulator to the dipstick tube.
5. Disconnect the breather cap-to-air cleaner hose at the breather cap end. Cap or plug the breather cap nipple.
6. Remove the PCV valve from the cylinder head cover. Cap or plug the PCV valve grommet.
7. After the engine is sealed, set the air pressure regulator NO HIGHER than 3 psi (27 kPa).
8. Gradually apply air pressure from 1 to 2.5 psi maximum. Using a liquid soap solution or stethoscope, inspect all suspected oil leak areas. Repair per the Service Manual instructions.
9. If no other leaks are detected, turn off the air supply. Remove the air hose and all plugs previously installed. Install the PCV valve and breather cap hose.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No: 09-01-00-90 Dye Test 0.6 Hrs.
09-01-00-91 Dye Test w/Road Test 1.1 Hrs.
09-01-00-92 Dye Test and Air Pressure
Check w/Road Test 1.4 Hrs.
FAILURE CODE: 71 - Oil Leak