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MEASUREMENT Subaru Legacy BN/BS

Automatic Transaxle (5AT) 36 illustrations ~2308 words

MEASUREMENT

Note. If the clutch or brake shows a sign of slippage, or shifting interval is not correct, check the line pressure.

  1. Excessive shock during up-shift may be due to the line pressure being too high.
  2. In many cases, slippage or inability to operate the vehicle may be due to insufficient oil pressure for the operation of clutch, brake or control valve.

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Scheme 242
  1. Lift up the vehicle.
  2. Remove the test plug and install the ST. ST 498897200 OIL PRESSURE ADAPTER
  3. Set the ST1 and ST2. ST1 498897200 OIL PRESSURE ADAPTER ST2 498575400 OIL PRESSURE GAUGE ASSY
  4. Lower the vehicle, and pull ST2, which were set in step 3 ), into the vehicle.
  5. Connect the Subaru Select Monitor to the data link connector and read the current data. Refer to «READ CURRENT DATA»(ref-646027-S19882723172014072500000) .
  6. Perform line pressure test in the same manner as the stall test. NOTE: Do not perform the line pressure test for 5 seconds or more at a time. Doing so will make the engine oil and ATF deteriorate and the clutch and brake to be adversely affected. After performing the line pressure test, be sure to cool down the engine for at least one minute with the select lever set in "P" or "N" range and with the idle speed at 1, 200 RPM or less. Range of the select lever Accelerator pedal opening angle> ATF temperature condition "P/L Solenoid Pressure" displayed on the Subaru Select Monitor kPa Standard line pressure kPa (kg/cm 2 , psi) 2nd gear of manual mode Full closed 45 - 55°C (113 - 131°F) 350 - 500 Target pressure (displayed on Subaru Select Monitor) -10 - +190 (Target pressure -0.10 - +1.94, Target pressure -1.45 - +27.5) Full open 2, 000 or more 1, 320 - 1, 520 (13.46 - 15.50, 191.4 - 220.4) R Full open 1, 600 or more 1, 660 - 1, 860 (16.93 - 18.97, 240.7 - 269.7)
  7. Remove the ST and install the test plug. NOTE: Use new O-rings. Tightening torque: 13 N.m (1.3 kgf-m, 9.6 ft-lb)

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Scheme 243: INSPECTION
Scheme 243: INSPECTION
  1. Lift up the vehicle.
  2. Remove the bolts holding the heat shield cover, and move the heat shield cover to the rear.
  3. Remove the test plug and install the ST. CAUTION: Be careful not to cut yourself on the heat shield cover when removing the test plugs and setting the ST. ST 498897800 OIL PRESSURE ADAPTER SET
  4. Set the ST. ST 498575400 OIL PRESSURE GAUGE ASSY
  5. Lower the vehicle, and pull ST, which were set in step 4 ), into the vehicle.
  6. Connect the Subaru Select Monitor to the data link connector and read the current data. Refer to «READ CURRENT DATA»(ref-646027-S19882723172014072500000) .
  7. Perform the transfer clutch pressure test in the same manner as the line pressure test. NOTE: Do not perform the transfer clutch pressure test for 5 seconds or more at a time. Doing so will make the engine oil and ATF deteriorate and the clutch and brake to be adversely affected. After performing the transfer clutch pressure test, be sure to cool down the engine for at least one minute with the select lever set in the "P" or "N" range, and at an idle speed of 1, 200 RPM or less. Adjust the accelerator pedal opening angle in order to obtain the "T/F solenoid target pressure" displayed on the Subaru Select Monitor. Range of the select lever Accelerator pedal opening angle ATF temperature condition "T/F Solenoid Target Pressure" displayed on the Subaru Select Monitor kPa Standard transfer clutch pressure kPa (kg/cm 2 , psi) 2nd gear of manual mode Partial throttle 45 - 55°C (113 - 131°F) 400 300 - 500 (3.06 - 5.10, 43.5 - 72.5) N Full closed 0 0 - 50 (0 - 0.51, 0 - 7.2)
  8. Remove the ST and install the test plug. NOTE: Use new O-rings. Tightening torque: 13 N.m (1.3 kgf-m, 9.6 ft-lb)
  9. Install the heat shield cover. Refer to «INSTALLATION»(ref-646002-S18321241742014072500000) .

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  1. Remove the front wheels.
  2. Fully open the front hood.
  3. Disconnect the ground cable from battery.
  4. Remove the collector cover. NOTE: Follow the steps below when removing the collector cover. Pull up the two points at the rear (A). Pull up the two points at the front (B) while moving them forward.
  5. Remove the air intake duct. Refer to «REMOVAL»(ref-645986-S28672089422014072500000) .
  6. Remove the 10 clips and detach the grille bracket.
  7. Remove the air intake boot. Refer to «REMOVAL»(ref-645986-S29470147512014072500000) .
  8. Disconnect the following connectors.
  9. Remove the transmission radio ground terminal.
  10. Remove the air breather hose. Refer to «REMOVAL»(ref-645991-S09222856072014072500000) .
  11. Remove the starter. Refer to «REMOVAL»(ref-646020-S18105189732014072500000) .
  12. Remove the engine hanger rear.
  13. Separate the torque converter from drive plate. CAUTION: Be careful not to drop bolts into converter housing. Be careful not to damage the mounting bolts. Remove the service hole plug. Remove the bolts which hold torque converter to drive plate. Remove the four bolts by rotating the crank pulley a little at a time. Make sure the torque converter moves freely by rotating with finger through the starter installation hole.
  14. Attach the ST to the converter case. ST 498277200 STOPPER SET
  15. Attach the ST to the engine. Tightening torque: 19 N.m (1.9 kgf-m, 14.0 ft-lb) ST 18360AA020 HANGER
  16. Lift up the vehicle.
  17. Remove the under cover. Refer to «REMOVAL»(ref-646002-S00701002792014072500000) .
  18. Remove the front and rear exhaust pipes. Refer to «REMOVAL»(ref-646022-S04544423642014072500000) , Front Exhaust Pipe, and refer to «REMOVAL»(ref-646022-S42404098832014072500000) , Rear Exhaust Pipe.
  19. Remove the heat shield cover.
  20. Remove the steering shaft universal joint. Refer to «REMOVAL»(ref-646000-S32412901232014072500000) .
  21. Remove the ATF drain plug to drain ATF.
  22. Remove the oil charge pipe.
  23. Disconnect the connector from turbine speed sensor 1.
  24. Remove the turbine speed sensor 1 mounting bolt and rotate the sensor by 180°. CAUTION: Failure to follow this procedure may cause the interference between vehicle body and sensor while removing/installing transmission, and resulting in damage.
  25. Remove the propeller shaft. Refer to «REMOVAL»(ref-645998-S02224167242014072500000) .
  26. Remove the select cable. Refer to «REMOVAL»(ref-646009-S34375477082014072500000) .
  27. Disconnect the ATF AT inlet and outlet hoses from the ATF cooler inlet and outlet pipes.
  28. Remove the front stabilizer bracket. Refer to «REMOVAL»(ref-645996-S00915542132014072500000) .
  29. Remove the bolts which secure front ball joint to the housing. Refer to «REMOVAL»(ref-645996-S37463635892014072500000) .
  30. Pull out the drive shaft from transmission.
  31. Lower the vehicle.
  32. Remove the nuts connecting the engine mounting and the transmission main mounting bracket.
  33. Remove the radiator upper brackets.
  34. Set the ST on the vehicle. CAUTION: Set the ST so that the chain does not contact the sensor and other parts while hanging the engine. Set the arms of ST (ENGINE HANGER) at the locations shown in the figure. ST1 99099AJ000 ENGINE HANGER ST2 99099AJ010 CHAIN BALANCER
  35. Lift up the radiator approximately by 30 mm (1.2 in) and keep the position with cloth or other material placed under the radiator.
  36. Lift the engine slightly and remove the engine mounting bolts.
  37. Remove the engine mounting nut and bolt to remove the engine mounting.
  38. Temporarily attach ST by using two bolts. ST 41099AJ010 SPECIAL TOOL H6
  39. Lift up the engine unit high enough to install the bolt and nut to vehicle. CAUTION: Do not lift up higher than enough level to install the ST to avoid damage to the hoses and pipes inside the engine room. Do not tighten the nuts excessively, or the engine mounting bracket may be deformed. NOTE: If it is difficult to pull out the stud bolt from transmission mounting bracket, shake the engine unit slightly while lifting up.
  40. Tighten the mounting bolts on the engine side. Tightening torque: 25 N.m (2.5 kgf-m, 18.4 ft-lb)
  41. Remove the ST (ENGINE HANGER).
  42. Remove the transmission main mounting bracket. NOTE: First, remove the transmission mounting bracket on the right side of vehicle, and then tilt the engine unit to remove the left transmission mounting bracket.
  43. Remove the transmission mounting bolt (upper side).
  44. Set the ST (ENGINE HANGER) again to loosen the chain sling.
  45. Lift up the vehicle.
  46. Set the transmission jack under the transmission.
  47. Remove the rear crossmember from the vehicle.
  48. Lower the transmission rear end (dust cover rear end). CAUTION: When lowering the transmission rear end, be careful not to let the converter case and steering mechanical parts contact each other. NOTE: Lower the transmission rear end by approx. 80 mm (3.1 in) (reference).
  49. Rotate the handle of ST (ENGINE HANGER) to apply tension to the chain sling.
  50. Remove the transmission mounting bolt and nut (lower side).
  51. Remove the transmission.
  52. Remove the cushion rubber from the transmission.

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Scheme 270: INSTALLATION
Scheme 270: INSTALLATION

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  1. Replace the front differential side retainer oil seal. Remove the oil seal by using flat tip screwdriver etc. Using the ST, install the oil seal by lightly tapping with a plastic hammer. NOTE: Use a new oil seal. Check the identification marks (L, R) during installation not to mix up the oil seal RH and LH. Apply gear oil to the oil seal lips. Be sure to replace the differential side retainer oil seal whenever the front drive shaft is removed from the transmission. ST 18675AA000 DIFFERENTIAL SIDE OIL SEAL INSTALLER
  2. Attach the ST to converter case. ST 498277200 STOPPER SET
  3. Install the cushion rubber on the transmission. Tightening torque: 40 N.m (4.1 kgf-m, 29.5 ft-lb)
  4. Tap the transmission hanger in the rear side of transmission with a rubber hammer to bend it until it is in close contact with the transmission case. CAUTION: Do not apply excessive load or impact to the transmission case.
  5. While lifting up the transmission gradually using transmission jack, install the transmission to the engine. CAUTION: This operation requires at least two persons. NOTE: Keep the engine level.
  6. Install the engine mounting bolt and nut (lower side). Tightening torque: 50 N.m (5.1 kgf-m, 36.9 ft-lb)
  7. Install the transmission rear crossmember. Tightening torque: T1: 35 N.m (3.6 kgf-m, 25.8 ft-lb) T2: 75 N.m (7.6 kgf-m, 55.3 ft-lb)
  8. Remove the transmission jack.
  9. Lower the vehicle.
  10. Install the engine mounting bolt (upper side). Tightening torque: 50 N.m (5.1 kgf-m, 36.9 ft-lb)
  11. Remove the ST (ENGINE HANGER).
  12. Install the transmission main mounting bracket. NOTE: Install to the left side of vehicle first. Tightening torque: 75 N.m (7.6 kgf-m, 55.3 ft-lb)
  13. Attach the ST (ENGINE HANGER) again.
  14. Remove the ST and install the front cushion rubber. Lift up the radiator approximately by 30 mm and keep the position with cloth or other material placed under the radiator. Remove the bolts from ST (SPECIAL TOOL H6). Remove the bolt and nut to remove ST (SPECIAL TOOL H6). Temporarily attach the front cushion rubber with bolts. Install the bolt and nut to the front engine mounting. NOTE: Always start tightening from the bolts on the engine side. Tightening torque: T1: 25 N.m (2.5 kgf-m, 18.4 ft-lb) T2: 45 N.m (4.6 kgf-m, 33.2 ft-lb) Insert the lower radiator pin into the radiator lower cushion on the vehicle side, and install the radiator upper bracket. Tightening torque: 12 N.m (1.2 kgf-m, 8.9 ft-lb)
  15. Remove the ST from the vehicle.
  16. Tighten the nuts connecting the engine mounting and the transmission main mounting bracket. Tightening torque: 45 N.m (4.6 kgf-m, 33.2 ft-lb)
  17. Remove the ST from converter case.
  18. Install the torque converter to drive plate. CAUTION: Be careful not to drop bolts into the converter housing. Be careful not to damage the mounting bolts. Install the bolts which connect the torque converter and drive plate. Install all four bolts by rotating the crank pulley a little at a time. Tightening torque: 25 N.m (2.5 kgf-m, 18.4 ft-lb) Install the service hole plug.
  19. Install the starter. Refer to «REMOVAL»(ref-646020-S18105189732014072500000) .
  20. Lift up the vehicle.
  21. Set the ST to side retainer. ST 28399SA010 OIL SEAL PROTECTOR
  22. Install the front drive shaft into the transmission. Refer to «INSTALLATION»(ref-645998-S27218978612014072500000) .
  23. Connect the ATF AT inlet and outlet hoses to the ATF cooler inlet and outlet pipes. NOTE: Use a new ATF hose.
  24. Insert the ball joint into housing. Refer to «INSTALLATION»(ref-645996-S12286497322014072500000) .
  25. Install the front stabilizer bracket. Refer to «INSTALLATION»(ref-645996-S14720633512014072500000) .
  26. Install the propeller shaft. Refer to «INSTALLATION»(ref-645998-S27738106242014072500000) .
  27. Install the select cable. Refer to «INSTALLATION»(ref-646009-S03100270582014072500000) .
  28. Rotate the turbine speed sensor 1 by 180° and then restore it to the original position to install. Then, connect the connector. Tightening torque: 7 N.m (0.7 kgf-m, 5.2 ft-lb)
  29. Install the oil charge pipe. NOTE: Use new bolts and O-rings. Tightening torque: 38 N.m (3.9 kgf-m, 28.0 ft-lb)
  30. Install the steering shaft universal joint. Refer to «INSTALLATION»(ref-646000-S26694721972014072500000) .
  31. Install the heat shield cover. Refer to «INSTALLATION»(ref-646002-S18321241742014072500000) .
  32. Install the front and rear exhaust pipe. Refer to «INSTALLATION»(ref-646022-S17408105962014072500000) , Front Exhaust Pipe, and refer to «INSTALLATION»(ref-646022-S34706345502014072500000) , Rear Exhaust Pipe.
  33. Install the under cover. Refer to «INSTALLATION»(ref-646002-S01834874552014072500000) .
  34. Lower the vehicle.
  35. Remove the ST and install the engine hanger rear. Tightening torque: 19 N.m (1.9 kgf-m, 14.0 ft-lb)
  36. Connect the following connectors.
  37. Install the transmission radio ground terminal. Tightening torque: 13 N.m (1.3 kgf-m, 9.6 ft-lb)
  38. Pour ATF from the oil charge pipe. Refer to «AUTOMATIC TRANSMISSION FLUID»(ref-645991-S10062532332014072500000) .
  39. Install the air breather hose. Refer to «INSTALLATION»(ref-645991-S09560770682014072500000) .
  40. Install the air intake boot. Refer to «INSTALLATION»(ref-645986-S21560126942014072500000) .
  41. Attach the grille bracket.
  42. Install the air intake duct. Refer to «INSTALLATION»(ref-645986-S02293724602014072500000) .
  43. Install the collector cover.
  44. Connect the battery ground terminal.
  45. Check the ATF level. Refer to «INSPECTION»(ref-645991-S39772876402014072500000) .
  46. Perform Clear Memory 2 operation. Refer to «CLEAR MEMORY MODE»(ref-646027-S22215565302014072500000) .
  47. Perform the diagnosis again. Refer to «LEARNING CONTROL»(ref-646027-S27945741792014072500000) .
  48. Perform the inspection at the end of repair work, and make sure there is no faulty as below; Excessive shift shock Oil leakage from the transmission body, etc. Occurrence of noise caused by interference etc.