Contents Wiring diagrams Section: Lubrication System All sections

Engine Lubrication Acura TL IV

Lubrication System 27 illustrations ~2692 words

Scheme 1

Scheme 1: Special Tools

Scheme 2

Scheme 2: Component Location Index

Scheme 3

Scheme 3

Symptom Troubleshooting Index

SymptomDiagnostic procedureAlso check for
Excessive engine oil consumptionVerify the engine oil filler cap, the oil drain bolt, and the oil filter are tight Check for oil leaks Check for worn valve guide(s) J35Z6 engine (see VALVE STEM-TO-GUIDE CLEARANCE INSPECTION ) J37A4 engine (see VALVE STEM-TO-GUIDE CLEARANCE INSPECTION ) or worn stem seal(s) J35Z6 engine (see VALVE INSPECTION ) J37A4 engine (see VALVE INSPECTION ) Check for damaged or worn piston ring(s) (see PISTON RING REPLACEMENT ) Check for damaged or worn engine internal parts (cylinder wall, pistons, etc) (see BLOCK AND PISTON INSPECTION )Check the maintenance records, worn out engine oil will burn off at a higher rate
Low oil pressure indicator does not come on with the ignition switch in ON (II), or the vehicle ignition in the ON modeDo the low oil pressure indicator circuit troubleshooting (Open) (see LOW OIL PRESSURE INDICATOR CIRCUIT TROUBLESHOOTING (OPEN) ) Test the oil pressure switch (see OIL PRESSURE SWITCH TEST )A wire shorted to ground between the PCM and the oil pressure switch
Low oil pressure indicator stays onCheck the engine oil level Do the low oil pressure indicator circuit troubleshooting (Short) (see LOW OIL PRESSURE INDICATOR CIRCUIT TROUBLESHOOTING (SHORT) ) Test the oil pressure switch (see OIL PRESSURE SWITCH TEST ) Check the engine oil pressure (see OIL PRESSURE TEST ) Check the oil filter for clogging Check the oil strainer for clogging Check the relief valve (see OIL PUMP OVERHAUL ) Test the oil pump (see REMOVAL )An open in the wire between the powertrain control module (PCM) and the oil pressure switch

TROUBLESHOOTING CHART

Scheme 4

Scheme 4: Without Keyless Access System

Scheme 5

Scheme 5: With Keyless Access System

Scheme 6

Scheme 6: Low Oil Pressure Indicator Circuit Troubleshooting (Open)
  1. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/auxiliary-emission-control-systems/#fuel-and-emissions-systems) )
  2. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
  3. Make sure the HDS communicates with the vehicle and the powertrain control module (PCM) If it does not communicate, troubleshoot the DLC circuit (see «DLC CIRCUIT TROUBLESHOOTING»(/acura/tl/iv-2008-2011/remont/testing-diagnostics/#pgm-fi-system__dlc-circuit-troubleshooting) )
  4. Check for DTCs (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/auxiliary-emission-control-systems/#fuel-and-emissions-systems) ) If a DTC is present, diagnose, and repair the cause before continuing with this test
  5. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode. Check the OIL PRESSURE SWITCH in the PGM-FI DATA LIST with the HDS Is OFF indicated? YES -Replace the gauge control module (see «GAUGE CONTROL MODULE REPLACEMENT»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#display-and-gauge-system__gauge-control-module-replacement) ) NO -Go to step 6
  6. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
  7. Check the oil pressure switch (see «OIL PRESSURE SWITCH TEST»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication) ) Is the oil pressure switch OK? YES -Go to step 8 NO -Do the oil pressure test (see «Oil Pressure Test»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication__oil-pressure-test) ). If the oil pressure is OK, replace the oil pressure switch (see «Oil Pressure Switch Replacement»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication) )
  8. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, and jump the SCS line with the HDS, then turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode NOTE: This step must be done to protect the PCM from damage
  9. Disconnect PCM connector C (49P) and the oil pressure switch connector
  10. Check for continuity between PCM connector terminal C45 and the oil pressure switch connector Is there continuity? YES -Update the PCM if it does not have the latest software (see «ECM/PCM UPDATE»(/acura/tl/iv-2008-2011/remont/testing-diagnostics/#pgm-fi-system__ecmpcm-update) ), or substitute a known-good PCM (see «SUBSTITUTING THE ECM/PCM»(/acura/tl/iv-2008-2011/remont/auxiliary-emission-control-systems/#fuel-and-emissions-systems__substituting-the-ecmpcm) ), then recheck If the symptom/indication goes away with a known-good PCM, replace the original PCM (see «ECM/PCM REPLACEMENT»(/acura/tl/iv-2008-2011/remont/testing-diagnostics/#pgm-fi-system__ecmpcm-replacement) ) NO -Repair open in the wire between the oil pressure switch and PCM connector terminal C45

Scheme 7

Scheme 7: Low Oil Pressure Indicator Circuit Troubleshooting (Short)
  1. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/auxiliary-emission-control-systems/#fuel-and-emissions-systems) )
  2. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
  3. Make sure the HDS communicates with the vehicle and the powertrain control module (PCM) If it does not communicate, troubleshoot the DLC circuit (see «DLC CIRCUIT TROUBLESHOOTING»(/acura/tl/iv-2008-2011/remont/testing-diagnostics/#pgm-fi-system__dlc-circuit-troubleshooting) )
  4. Check for DTCs (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/auxiliary-emission-control-systems/#fuel-and-emissions-systems) ) If a DTC is present, diagnose, and repair the cause before continuing with this test
  5. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, and check the OIL PRESSURE SWITCH in the PGM-FI DATA LIST with the HDS Is OFF indicated? YES -Replace the gauge control module (see «GAUGE CONTROL MODULE REPLACEMENT»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#display-and-gauge-system__gauge-control-module-replacement) ) NO -Go to step 6
  6. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
  7. Check the oil pressure switch (see «OIL PRESSURE SWITCH TEST»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication) ) Is the oil pressure switch OK? YES -Go to step 8 NO -Replace the oil pressure switch (see «Oil Pressure Switch Replacement»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication) )
  8. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, and jump the SCS line with the HDS, then turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode NOTE: This step must be done to protect the PCM from damage
  9. Disconnect PCM connector C (49P)
  10. Check for continuity between the oil pressure switch connector and body ground Is there continuity? YES -Repair short to ground in the wire between the oil pressure switch and PCM connector terminal C45 NO -Update the PCM if it does not have the latest software (see «ECM/PCM UPDATE»(/acura/tl/iv-2008-2011/remont/testing-diagnostics/#pgm-fi-system__ecmpcm-update) ), or substitute a known-good PCM (see «SUBSTITUTING THE ECM/PCM»(/acura/tl/iv-2008-2011/remont/auxiliary-emission-control-systems/#fuel-and-emissions-systems__substituting-the-ecmpcm) ), then recheck If the symptom/indication goes away with a known-good PCM, replace the original PCM (see «ECM/PCM REPLACEMENT»(/acura/tl/iv-2008-2011/remont/testing-diagnostics/#pgm-fi-system__ecmpcm-replacement) )

Scheme 8

Scheme 8: Oil Pressure Switch Test
  1. Disconnect the oil pressure switch connector (A) from oi pressure switch
  2. Check for continuity between the positive terminal (B) and the engine (ground) There should be continuity with the engine stopped There should be no continuity with the engine running

Scheme 9

Scheme 9: Oil Pressure Switch Replacement
  1. Disconnect the oil pressure switch connector (A), then remove the oil pressure switch (B)
  2. Remove all of the old liquid gasket from the switch and the switch mounting hole
  3. Apply a very small amount of liquid gasket to the oil pressure switch threads, then install the oil pressure switch with a new O-ring (C) NOTE: Using too much liquid gasket may cause liquid gasket to enter the oil passage or the end of the new oil pressure switch
  4. Install the oil pressure switch with a new O-ring
  5. Connect the oil pressure switch connector

Oil Pressure Test

Special Tools Required

  1. Oil pressure hose 07ZAJ-S5AA200
  2. A/T low pressure gauge w/panel 07406-0070301
  3. A/T Pressure Test Hose 07AAL-PY4A100
  4. A/T Pressure Adapter 07MAJ-PY40120
  5. Pressure gauge adapter 07NAJ-P07010A

If the low oil pressure indicator stays on with the engine running, check the engine oil level If the oil level is correct

  1. Remove the oil pressure switch (see «Oil Pressure Switch Replacement»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication) )
  2. Install the oil pressure hose, the A/T low pressure gauge w/panel, the A/T pressure test hose, and the A/T pressure adapter as shown, then install the oil pressure switch and/or rocker arm oil pressure sensor to the pressure gauge adapter
  3. Start the engine Shut it off immediately if the gauge registers no oil pressure Repair the problem before continuing
  4. Allow the engine to reach operating temperature (fan comes on at least twice) The pressure should be Engine Oil Temperature: 176°F (80°C) Engine Oil Pressure: At Idle: 69 kPa (0.7 kgf/cm 2 , 10 psi) min. At 3,000 rpm: 490 kPa (5 0 kgf/cm 2 , 71 psi) min
  5. If oil pressure is not within specifications, inspect these items Blocking of oil filter Blocking of oil strainer Inspect the oil pressure relief valve (see «OIL PUMP OVERHAUL»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication) ) Inspect the oil pump (see «Inspection»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication) )

Scheme 10

Scheme 10: Engine Oil Level Check
  1. Park the vehicle on level ground, and start the engine. Hold the engine speed at 3,000 rpm with no load (in P or N (A/T model) or neutral (M/T model)) until the radiator fan comes on, then turn off the engine, and wait a few minutes.
  2. Remove the dipstick, and wipe off the dipstick, then reinstall the dipstick.
  3. Remove the dipstick, and check the engine oil level. It should be between the upper mark (A) and the lower mark (B).
  4. If the engine oil level is near or below the lower mark, check for oil leakage, and add the engine oil to bring it to the upper mark.
  5. Refill with the recommended oil (see «LUBRICANTS AND FLUIDS»(/acura/tl/iv-2008-2011/remont/reset-procedures/#maintenance__lubricants-and-fluids) )

Scheme 11

Scheme 11: Engine Oil Replacement

Scheme 12

Scheme 12
  1. Warm up the engine
  2. Remove the drain bolt (A), and drain the engine oil
  3. Reinstall the drain bolt with a new washer (B)
  4. Refill with the recommended oil (see «LUBRICANTS AND FLUIDS»(/acura/tl/iv-2008-2011/remont/reset-procedures/#maintenance__lubricants-and-fluids) ) Capacity At Oil Change 4.0 L (4.2 US qt) At Oil Change including Filter 4.3 L (4.5 US qt) After Engine Overhaul 5.0 L (5.3 US qt)
  5. Run the engine for more than 3 minutes, then check for oil leakage
  6. If the maintenance minder required engine oil replacement, reset 1 he maintenance minder (see «MAINTENANCE MINDER»(/acura/tl/iv-2008-2011/remont/reset-procedures/#maintenance) ), and this procedure is complete If the maintenance minder did not require engine oil replacement, go to step 7
  7. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
  8. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/auxiliary-emission-control-systems/#fuel-and-emissions-systems) )
  9. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
  10. Make sure the HDS communicates with the vehicle and the powertrain control module (PCM) If it does not communicate, troubleshoot the DLC circuit (see «DLC CIRCUIT TROUBLESHOOTING»(/acura/tl/iv-2008-2011/remont/testing-diagnostics/#pgm-fi-system__dlc-circuit-troubleshooting) )
  11. Select GAUGES in the BODY ELECTRICAL with the HDS
  12. Select ADJUSTMENT in the GAUGES with the HDS
  13. Select MAINTENANCE MINDER in the ADJUSTMENT with the HDS
  14. Select RESET in the MAINTENANCE MINDER with the HDS
  15. Select RESETTING THE ENGINE OIL LIFE with the HDS NOTE: If you changed the ATF at the same time with the engine oil, select RESETTING THE ENGINE OIL LIFE AND ATF with the HDS instead

Engine Oil Filter Replacement

Special Tools Required

Oil filter wrench 07AAA-PLCA100

Scheme 13

Scheme 13: Engine Oil Filter Replacement

Scheme 14

Scheme 14

Scheme 15

Scheme 15
  1. Drain the engine oil (see «Engine Oil Replacement»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication) )
  2. Remove the oil filter with the oil filter wrench
  3. Inspect the filter to make sure the rubber seal is not stuck to the oil filter seating surface of the engine
  4. Inspect the threads (A) and the rubber seal (B) on the new filter Clean the seat on the oil filter base, then apply a light coat of new engine oil to the filter rubber seal Use only filters with a built-in bypass system
  5. Install the oil filter by hand
  6. After the rubber seal seats, tighten the oil filter clockwise with the oil filter wrench Tighten 3/4 Turn Clockwise Tightening Torque 12 Nm (1.2 kgf.m, 8.7 lbf.ft)
  7. If four numbers or marks (1 to 4 or ↓ to ↓↓↓↓) are printed around the outside of the filter, you can use the following procedure to tighten the filter Spin the filter on until its seal lightly seats against the oil filter base, and note which number or mark is at the bottom Tighten the filter by turning it clockwise three numbers or marks from the one you noted For example, if mark ↓ is at the bottom when the seal is lightly seated, tighten the filter until the mark ↓↓↓↓ comes around to the bottom
  8. After installation, fill the engine with oil up to the specified level, run the engine for more than 3 minutes, then check for oil leakage

Scheme 16

Scheme 16: Oil Filter Feed Pipe Replacement

Scheme 17

Scheme 17
  1. Remove the oil filter (see «ENGINE OIL FILTER REPLACEMENT»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication__engine-oil-filter-replacement) )
  2. Remove the oil filter feed pipe
  3. Install two 20 x 1.5 mm nuts (A) onto the new oil filter feed pipe, and hold one nut with a wrench, then tighten the other nut
  4. Apply new engine oil to the oil filter feed pipe threads, then torque the oil 1 liter feed pipe to 35 Nm (3.6 kgf.m, 26 lbf.ft), then remove the nuts from the oil filter feed pipe
  5. Install the oil filter (see «ENGINE OIL FILTER REPLACEMENT»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication__engine-oil-filter-replacement) )

Scheme 18

Scheme 18: Oil Jet Replacement
  1. Remove the crankshaft from the engine block (see «CRANKSHAFT AND PISTON REMOVAL»(/acura/tl/iv-2008-2011/remont/mechanical/#engine-block) )
  2. Remove the oil jet bolt (A), then remove the oil jet (B)
  3. Carefully install the new oil jet and tighten the oil jet bolt
  4. Install the crankshaft (see «CRANKSHAFT AND PISTON INSTALLATION»(/acura/tl/iv-2008-2011/remont/mechanical/#engine-block__crankshaft-and-piston-installation) )

Scheme 19

Scheme 19: Oil Jet Bolt Inspection
  1. Remove the oil jet bolt (see «OIL FILTER FEED PIPE REPLACEMENT»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication) )
  2. Inspect the oil jet bolt as follows Make sure that a 0 6 mm (0 02 in) diameter drill will go through the oil intake (0 7 mm (0 03 in) diameter) Make sure the check ball (A) moves smoothly and has a stroke of about 4 0 mm (0 16 m) Check the oil jet bolt operation with an air nozzle It should take at least 120 kPa (1.2 kgf/cm 2 , 17 psi) to unseat the check ball

Scheme 20

Scheme 20: Exploded View

Special Tools Required

Oil seal driver, 64 mm 070AD-RCAA100

Scheme 21

Scheme 21: Removal
  1. Dram the engine oil (see «ENGINE OIL REPLACEMENT»(/acura/tl/iv-2008-2011/remont/lubrication-system/#engine-lubrication) )
  2. Remove the timing belt J35Z6 engine (see «TIMING BELT REMOVAL»(/acura/tl/iv-2008-2011/remont/mechanical/#cylinder-head-j35z6) ) J37A4 engine (see «TIMING BELT REMOVAL»(/acura/tl/iv-2008-2011/remont/mechanical/#cylinder-head-j37a4) )
  3. Remove the timing belt drive pulley from the crankshaft J35Z6 engine (see «TIMING BELT DRIVE PULLEY REPLACEMENT»(/acura/tl/iv-2008-2011/remont/mechanical/#cylinder-head-j35z6) ) J37A4 engine (see «TIMING BELT DRIVE PULLEY REPLACEMENT»(/acura/tl/iv-2008-2011/remont/mechanical/#cylinder-head-j37a4) )
  4. Attach the chain hoist to the engine hook on the engine hanger bracket (see step 57 on «ENGINE REMOVAL»(/acura/tl/iv-2008-2011/remont/mechanical/#engine-removal-and-installation) )
  5. Remove the rocker arm oil control solenoid/oil filter assembly (see step 8 on «CRANKSHAFT AND PISTON REMOVAL»(/acura/tl/iv-2008-2011/remont/mechanical/#engine-block) )
  6. Remove the oil pan (see «OIL PAN REMOVAL»(/acura/tl/iv-2008-2011/remont/mechanical/#engine-block) )
  7. Remove the oil strainer (A)
  8. Remove the mounting bolts, then remove the oil pump assembly (B)

Scheme 22

Scheme 22: Inspection

Scheme 23

Scheme 23

Scheme 24

Scheme 24
  1. Remove the screws from the pump housing, then separate the pump housing and the cover
  2. Check the inner-to-outer rotor radial clearance between the inner rotor (A) and the outer rotor (B) If the inner-to-outer rotor radial clearance exceeds the service limit, replace the oil pump assembly Inner Rotor-to-Outer Rotor Radial Clearance Standard (New): 0.04-0.16 mm (0.002-0.006 in) Service Limit: 0.20 mm (0.008 in)
  3. Check the pump housing-to-rotor axial clearance between the rotors (A) and the pump housing (B) If the pump housing-to-rotor axial clearance exceeds the service limit, replace the oil pump assembly Pump Housing-to-Rotor Axial Clearance Standard (New): 0.02-0.07 mm (0.001-0.003 in.) Service Limit: 0.12 mm (0.005 in)
  4. Check the pump housing-to-outer rotor radial clearance between the outer rotor (A) and the pump housing (B) If the pump housing-to-outer rotor radial clearance exceeds the service limit, replace the oil pump assembly Pump Housing-to-Outer Rotor Radial Clearance Standard (New): 0.10-0.19 mm (0.004-0.007 in.) Service Limit: 0.20 mm (0.008 in.)
  5. Inspect both rotors and the pump housing for scoring or other damage Replace the parts, if necessary
  6. Apply liquid thread lock to the pump housing screws, then install the oil pump cover
  7. Check that the oil pump turns freely

Scheme 25

Scheme 25: Installation

Scheme 26

Scheme 26

Scheme 27

Scheme 27
  1. Remove the old oil seal from the oil pump
  2. Dry the crankshaft oil seal housing
  3. Using the oil seal driver, 64 mm, drive in the new crankshaft oil seal until the oil seal driver bottoms on the pump
  4. Remove all of the old liquid gasket from the oil pump mating surfaces, the bolts, and the bolt holes
  5. Clean and dry the oil pump mating surfaces
  6. Apply liquid gasket, P/N 08717-0004, 08718-0003, or 08718-0009 to the engine block mating surface of the oil pump and to the inside edge of the threaded bolt holes Install the component within 5 minutes of applying the liquid gasket NOTE: Apply a 2.3 mm (0.091 in) diameter bead of liquid gasket along the broken line (A) If you apply liquid gasket P/N 08718-0012, the component must be installed within 4 minutes If too much time has passed after applying the liquid gasket, remove all of the old liquid gasket and residue, then reapply the new liquid gasket
  7. Apply a light coat of new engine oil to the lip of the crankshaft oil seal, and apply new engine oil to the new O-ring (A)
  8. Install the dowel pins (B), then align the inner rotor with the crankshaft, and install the oil pump (C) NOTE: Wait at least 30 minutes before filling the engine with oil Do not run the engine for at least 3 hours after installing the oil pump
  9. Clean the excess grease off the crankshaft, and check the seal for distortion
  10. Install the oil strainer (D) with a new O-ring (E)
  11. Install the oil pan (see «OIL PAN INSTALLATION»(/acura/tl/iv-2008-2011/remont/mechanical/#engine-block) )
  12. Install the rocker arm oil control solenoid/oil filter assembly with a new rocker arm oil control solenoid filter (see step 39 on «CKP PULSE PLATE REPLACEMENT»(/acura/tl/iv-2008-2011/remont/mechanical/#engine-block) )
  13. Install the timing belt drive pulley to the crankshaft J35Z6 engine (see «TIMING BELT DRIVE PULLEY REPLACEMENT»(/acura/tl/iv-2008-2011/remont/mechanical/#cylinder-head-j35z6) ) J37A4 engine (see «TIMING BELT DRIVE PULLEY REPLACEMENT»(/acura/tl/iv-2008-2011/remont/mechanical/#cylinder-head-j37a4) )
  14. Install the timing belt J35Z6 engine (see «TIMING BELT INSTALLATION»(/acura/tl/iv-2008-2011/remont/mechanical/#cylinder-head-j35z6__timing-belt-installation) ) J37A4 engine (see «TIMING BELT INSTALLATION»(/acura/tl/iv-2008-2011/remont/mechanical/#cylinder-head-j37a4__timing-belt-installation) )
  15. Remove the chain hoist.