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Engine Lubrication System (H6DO): Diagnosis Subaru Outback BR рестайлинг

Lubrication System 14 illustrations ~1005 words

INSPECTION

StepCheckYesNo
1 CHECK COMBINATION METER. Turn the ignition switch to ON. (engine OFF) Check the warning light of combination meter.Does the warning light illuminate?Go to step 2 .Repair or replace the combination meter. Refer to INSPECTION .
2 CHECK HARNESS CONNECTOR BETWEEN COMBINATION METER AND OIL PRESSURE SWITCH. Turn the ignition switch to OFF. Disconnect the connector from oil pressure switch. Turn the ignition switch to ON. Measure the voltage of harness between oil pressure switch connector and chassis ground. Connector & terminal (E11) No. 1 (+) - Chassis ground (-)Is the voltage 10 V or more?Replace the oil pressure switch. Refer to OIL PRESSURE SWITCH .Go to step 3 .
3 CHECK COMBINATION METER. Turn the ignition switch to OFF. Remove the combination meter. Measure the resistance of combination meter. Terminals (i10) No. 8 - (i10) No. 19Is the resistance less than 10 ohms?Repair the harness and connector. NOTE: In this case, repair the following item: Open circuit of harness between combination meter and oil pressure switch Poor contact of combination meter connector Poor contact of oil pressure switch connector Poor contact of coupling connectorRepair or replace the combination meter. Refer to INSPECTION .
NOTE
In this case, repair the following item: Open circuit of harness between combination meter and oil pressure switch Poor contact of combination meter connector Poor contact of oil pressure switch connector Poor contact of coupling connector
CAUTIONIf the engine oil is spilt over exhaust pipe or the under cover, wipe it off with cloth to avoid emitting smoke or causing a fire.

Scheme 48

Scheme 48
Scheme 48
  1. Park the vehicle on a level surface.
  2. Remove the oil level gauge and wipe away the oil.
  3. Reinsert the oil level gauge all the way. Be sure that the oil level gauge is correctly inserted and properly orientated.
  4. Pull out the oil level gauge again, and check the oil level. If the engine oil level is below "L" line, make sure that there is no oil leakage from the engine, then add oil to raise the level up to the "F" line.
  5. Start the engine to circulate the oil in engine.
  6. After turning off the engine, wait a few minutes for the oil to return to the oil pan before checking the level. NOTE: Just after driving or while the engine is warm, engine oil level may be exceeding the "F" line. This is caused by thermal expansion of engine oil. To prevent overfilling of engine oil, do not add oil above "F" line when the engine is cold. As the oil level gauge is used for daily inspection, standard of "F" line and "L" line of the oil level gauge is set for the condition that engine is cold.

Check that the oil pan upper and oil pan lower have no deformation, cracks or other damages.

Scheme 49

Scheme 49: REMOVAL
Scheme 49: REMOVAL

Scheme 50

Scheme 50
Scheme 50

Scheme 51

Scheme 51
Scheme 51
  1. Remove the collector cover. NOTE: Follow the steps below when removing the collector cover. Lift up (A) in two positions at the rear. Moving (B) in two positions at the front toward the vehicle, lift them up.
  2. Disconnect the ground cable from battery.
  3. Lift up the vehicle.
  4. Remove the under cover. Refer to «REMOVAL»(ref-565181-S28182960572013071000000) .
  5. Drain the engine oil. Refer to «REPLACEMENT»(ref-565157-S20989681072013071000000) .
  6. Drain engine coolant. Refer to «DRAINING OF ENGINE COOLANT»(ref-565167-S19351012342013071000000) .
  7. Lower the vehicle.
  8. Remove the radiator. Refer to «REMOVAL»(ref-565167-S05791119462013071000000) .
  9. Remove the V-belts. Refer to «REMOVAL»(ref-565161-S04819945492013071000000) .
  10. Remove the crank pulley. Refer to «REMOVAL»(ref-565161-S07305427412013071000000) .
  11. Remove the chain cover. Refer to «REMOVAL»(ref-565161-S05362704272013071000000) .
  12. Remove the timing chain. Refer to «REMOVAL»(ref-565161-S16020200682013071000000) .
  13. Remove the oil pan lower. Refer to «REMOVAL»(ref-565157-S26420058222013071000000) .
  14. Remove the stiffener and the oil pump.
  15. Remove the strainer from the oil pump.
  16. Remove the O-ring from oil pan upper.

Scheme 52

Scheme 52
Scheme 52

Scheme 53

Scheme 53
Scheme 53
  1. Apply engine oil to the O-ring and attach it to the oil pan upper. NOTE: Use new O-rings.
  2. Apply liquid gasket to the mating surfaces of strainer. Liquid gasket: THREE BOND 1217G (Part No. K0877Y0100) or equivalent Liquid gasket applying diameter: 2.0±1.0 mm (0.079±0.039 in) NOTE: Install within 5 min. after applying liquid gasket. After installing the strainer, remove any liquid gasket that is squeezed out.
  3. Install the strainer to the oil pump. Tightening torque: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb)
  4. Install the stiffener and the oil pump. Tightening torque: T1: 13 N.m (1.3 kgf-m, 9.6 ft-lb) T2: 24 N.m (2.4 kgf-m, 17.7 ft-lb)
  5. Install the oil pan lower. Refer to «INSTALLATION»(ref-565157-S07788314422013071000000) .
  6. Install the timing chain. Refer to «INSTALLATION»(ref-565161-S03866533742013071000000) .
  7. Install the chain cover. Refer to «INSTALLATION»(ref-565161-S16896700402013071000000) .
  8. Install the crank pulley. Refer to «INSTALLATION»(ref-565161-S26224654262013071000000) .
  9. Install the V-belts. Refer to «INSTALLATION»(ref-565161-S02167665892013071000000) .
  10. Install the radiator. Refer to «INSTALLATION»(ref-565167-S09229691332013071000000) .
  11. Lift up the vehicle.
  12. Install the under cover. Refer to «INSTALLATION»(ref-565181-S36610771312013071000000) .
  13. Lower the vehicle.
  14. Fill the ATF. Refer to «FILLING OF ENGINE COOLANT»(ref-565167-S04263119292013071000000) .
  15. Refill the engine oil. Refer to «REPLACEMENT»(ref-565157-S20989681072013071000000) .
  16. Check the engine oil level. Refer to «INSPECTION»(ref-565157-S31963468742013071000000) .
  1. Visually check the oil pump for breakage.
  2. Visually check the strainer portion for clogging.

Scheme 54

Scheme 54: REMOVAL
Scheme 54: REMOVAL

Scheme 55

Scheme 55
Scheme 55
  1. Disconnect the ground cable from battery.
  2. Lift up the vehicle.
  3. Remove the under cover. Refer to «REMOVAL»(ref-565181-S28182960572013071000000) .
  4. Drain the engine oil. Refer to «REPLACEMENT»(ref-565157-S20989681072013071000000) .
  5. Disconnect the terminal from oil pressure switch.
  6. Remove the oil pressure switch.

Scheme 56

Scheme 56: INSTALLATION
Scheme 56: INSTALLATION
  1. Apply liquid gasket to the oil pressure switch threads. Liquid gasket: THREE BOND 1324 (Part No. 004403042) or equivalent
  2. Install the oil pressure switch. Tightening torque: 25 N.m (2.5 kgf-m, 18.4 ft-lb)
  3. Connect the terminal of the oil pressure switch.
  4. Install the under cover. Refer to «INSTALLATION»(ref-565181-S36610771312013071000000) .
  5. Refill the engine oil. Refer to «REPLACEMENT»(ref-565157-S20989681072013071000000) .
  6. Check the engine oil level. Refer to «INSPECTION»(ref-565157-S31963468742013071000000) .
  1. Check that the oil pressure switch does not have deformation, cracks or damage.
  2. Check the oil pressure switch installation portion for oil leakage and oil seepage.
  1. After installing the engine oil filter, run the engine and make sure that no oil is leaking around seal rubber. NOTE: The filter element and filter case are permanently jointed; therefore, interior cleaning is not necessary.
  2. Check the engine oil level. Refer to «INSPECTION»(ref-565157-S31963468742013071000000) .
  1. Check that coolant passages are not clogged using an compressed air.
  2. Check that the oil pan upper and O-ring installing surface of oil filter are not damaged.

Scheme 57

Scheme 57: REMOVAL
Scheme 57: REMOVAL

Scheme 58

Scheme 58
Scheme 58

Scheme 59

Scheme 59
Scheme 59

Scheme 60

Scheme 60
Scheme 60
  1. Disconnect the ground cable from battery.
  2. Lift up the vehicle.
  3. Remove the under cover. Refer to «REMOVAL»(ref-565181-S28182960572013071000000) .
  4. Drain the engine oil. Refer to «REPLACEMENT»(ref-565157-S20989681072013071000000) .
  5. Disconnect the connector of oil level switch from the engine harness.
  6. Remove the clips which hold the front camshaft cap (LH) and cylinder head (LH).
  7. Remove the oil level switch from the oil pan upper.
  8. Remove the oil level switch.

Scheme 61

Scheme 61: INSTALLATION
Scheme 61: INSTALLATION
  1. Route the oil level switch harness as shown in the figure.
  2. Attach the oil level switch to the oil pan upper. NOTE: Use new O-rings. Apply engine oil to O-ring. Tightening torque: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb)
  3. Attach the clips which hold the front camshaft cap (LH) and cylinder head (LH).
  4. Connect the connector of the oil level switch to the engine harness.
  5. Install the under cover. Refer to «INSTALLATION»(ref-565181-S36610771312013071000000) .
  6. Lower the vehicle.
  7. Refill the engine oil. Refer to «REPLACEMENT»(ref-565157-S20989681072013071000000) .
  8. Check the engine oil level. Refer to «INSPECTION»(ref-565157-S31963468742013071000000) .

INSPECTION WHEN LOW ENGINE OIL WARNING LIGHT IS ILLUMINATED

StepCheckYesNo
1 CHECK ENGINE OIL LEVEL.Is engine oil level normal?Go to step 2 .Replace engine oil or refill, and check again while the oil level is normal condition. Refer to REPLACEMENT . To turn off the low engine oil warning light, install the spare fuse at the delivery (test) mode fuse in the main fuse box. Then turn the ignition switch to ON (engine off) again, to confirm the low engine oil warning light turns off. Remove the spare fuse installed to finish. NOTE: The engine oil level switch is normal, if the low engine oil level warning light turns off with the delivery (test) mode fuse installed.
2 CHECK LAN SYSTEM.Has a DTC of the LAN system been input?Perform the diagnosis according to DTC.Go to step 3 .
3 CHECK OIL LEVEL SWITCH CIRCUIT. Turn the ignition switch to ON (engine OFF). Read the current data for engine in the Subaru Select Monitor to confirm the item for "Oil level switch". Refer to READ CURRENT DATA FOR ENGINE (NORMAL MODE) .Is the "Oil level switch" signal displayed in Subaru Select Monitor HIGH?To turn off the low engine oil warning light, install the spare fuse at the delivery (test) mode fuse in the main fuse box. Then turn the ignition switch to ON (engine off) again, to confirm the low engine oil warning light turns off. Remove the spare fuse installed to finish. NOTE: The engine oil level switch is normal, if the low engine oil level warning light turns off with the delivery (test) mode fuse installed.Go to step 4 .
4 CHECK COMBINATION METER. Perform the self-diagnosis of combination meter to check if there are any faults in the combination meter. Refer to OPERATION .Is combination meter OK?Go to step 5 .Replace the combination meter. Refer to REMOVAL .
5 CHECK SECURE CONNECTION OF CONNECTOR BETWEEN ENGINE HARNESS AND OIL LEVEL SWITCH.Is there any insecure connection?Remedy the connection condition. Then, to turn off the low engine oil warning light, install the spare fuse at the delivery (test) mode fuse in the main fuse box. Then turn the ignition switch to ON (engine off) again, to confirm the low engine oil warning light turns off. Remove the spare fuse installed to finish. NOTE: The engine oil level switch is normal, if the low engine oil level warning light turns off with the delivery (test) mode fuse installed.Go to step 6 .
6 CHECK OIL LEVEL SWITCH. Deliberately short circuits by connecting the engine harness connector terminal and chassis ground. Turn the ignition switch to ON (engine OFF). Read the current data for engine in the Subaru Select Monitor to confirm the item for "Oil level switch". Refer to READ CURRENT DATA FOR ENGINE (NORMAL MODE) . Connector & terminal (E130) No. 1 - Chassis groundIs the "Oil level switch" signal displayed in Subaru Select Monitor HIGH?Replace the oil level switch. Refer to REMOVAL .Go to step 7 .
7 CHECK SECURE CONNECTION OF CONNECTOR BETWEEN BULKHEAD HARNESS AND ENGINE HARNESS.Is there any insecure connection?Remedy the connection condition. Then, to turn off the low engine oil warning light, install the spare fuse at the delivery (test) mode fuse in the main fuse box. Then turn the ignition switch to ON (engine off) again, to confirm the low engine oil warning light turns off. Remove the spare fuse installed to finish. NOTE: The engine oil level switch is normal, if the low engine oil level warning light turns off with the delivery (test) mode fuse installed.Go to step 8 .
8 CHECK ENGINE HARNESS. Disconnect the connector on the oil level switch side for the engine harness. Disconnect the connector on the bulkhead harness side for the engine harness. Measure the resistance between connector terminals. Connector & terminal (E2) No. 16 - (E130) No. 1Is the resistance less than 1 ohms?Go to step 9 .Repair or replace the open circuit of engine harness.
9 CHECK SECURE CONNECTION OF CONNECTOR BETWEEN ENGINE CONTROL MODULE (ECM) AND BULKHEAD HARNESS. Remove the glove box lid assembly. Refer to REMOVAL .Is there any insecure connection?Remedy the connection condition. Then, to turn off the low engine oil warning light, install the spare fuse at the delivery (test) mode fuse in the main fuse box. Then turn the ignition switch to ON (engine off) again, to confirm the low engine oil warning light turns off. Remove the spare fuse installed to finish. NOTE: The engine oil level switch is normal, if the low engine oil level warning light turns off with the delivery (test) mode fuse installed.Go to step 10 .
10 CHECK BULKHEAD HARNESS. Remove the glove box lid assembly. Refer to REMOVAL . Disconnect the engine control module (ECM) side connector for the bulkhead harness. Disconnect the engine harness connectors from the bulkhead harness. Measure the resistance between connector terminals. Connector & terminal (B136) No. 26 - (B21) No. 16Is the resistance less than 1 ohms?Replace the engine control module (ECM). Refer to REMOVAL .Repair or replace the open circuit of the bulkhead harness.
NOTE
The engine oil level switch is normal, if the low engine oil level warning light turns off with the delivery (test) mode fuse installed.
NOTE
The engine oil level switch is normal, if the low engine oil level warning light turns off with the delivery (test) mode fuse installed.
NOTE
The engine oil level switch is normal, if the low engine oil level warning light turns off with the delivery (test) mode fuse installed.
NOTE
The engine oil level switch is normal, if the low engine oil level warning light turns off with the delivery (test) mode fuse installed.
NOTE
The engine oil level switch is normal, if the low engine oil level warning light turns off with the delivery (test) mode fuse installed.

OTHER INSPECTIONS

  1. Check that the oil level switch does not have deformation, cracks, or damage.
  2. Check the oil level switch installation part for oil leakage and oil seepage.

Before performing diagnostics, make sure that the engine oil level is correct and no oil leakage exists.

TroublePossible causeCorrective action
Warning light remains ON.A. Oil pressure switch failure
O Cracked diaphragm or oil leakage within switchReplace.
O Broken spring or seized contactsReplace.
B. Low oil pressure
O Clogging of oil filterReplace.
O Malfunction of oil by-pass valve in oil filterReplace.
O Malfunction of oil relief valve in oil pumpReplace.
O Clogged oil passageClean.
O Excessive tip clearance and side clearance of oil pump rotorReplace.
O Clogged oil strainer or broken pipeClean or replace.
C. No oil pressure
O Insufficient engine oil (degradation, etc.)Replace.
O Broken pipe of oil strainerReplace.
O Stuck oil pump rotorReplace.
Warning light does not illuminate.A. Defective combination meterReplace.
B. Poor contact of switch contact pointsReplace.
C. Disconnection of wiringRepair.
Warning light flickers momentarily.A. Defective terminal contactRepair.
B. Defective wiring harnessRepair.
C. Oil pressure switch failure
O Cracked diaphragm or oil leakage within switchReplace.
O Broken spring or seized contactsReplace.
D. Low oil pressure
O Clogging of oil filterReplace.
O Malfunction of oil by-pass valve in oil filterReplace.
O Malfunction of oil relief valve in oil pumpReplace.
O Clogged oil passageClean.
O Excessive tip clearance and side clearance of oil pump rotorReplace.
O Clogged oil strainer or broken pipeClean or replace.

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