Removal & Installation - A/t: Removal & Installation Lexus LS III

Removal & Installation (ES300)

1. Remove hood. Using a 5-mm hexagon wrench, remove cap nuts at "V" bank cover located on top of engine. Turn "V" bank cover fastener counterclockwise. Remove fastener and cover.
2. Remove battery. Remove air cleaner. On models with cruise control, disconnect actuator connector and remove actuator with bracket. On all models, disconnect 2 speed sensor connectors. Remove 2 wiring harness mounting bolts. Remove ground terminal mounting bolt. Remove shift control cable clamp.
3. Disconnect electrical connector at starter. Remove 2 starter mounting bolts. Remove nut and disconnect terminal from starter. Remove starter. Remove 2 engine mounting absorber bracket bolts. Remove 5 transaxle-to-engine upper side mounting bolts. Disconnect ground cable.
4. Remove exhaust manifold bracket mounting bolts. Raise and support vehicle. Remove front wheels. Drain ATF from transaxle. Remove 10 screws for front side of fender liners and 2 screws for rear side of fender liners. Remove fender liners and engine undercover. Remove 5 bolts and center engine undercover.
5. Remove axle shafts. See appropriate AXLE SHAFTS article in AXLE SHAFTS & TRANSFER CASES. Disconnect left and right stabilizer bar links. Remove 2 bolts and front exhaust pipe support stay. Remove 4 nuts from exhaust manifold. Remove 2 bolts and springs. Remove 3 gaskets.
6. Remove 2 nuts, bolts, front exhaust pipe support bracket and hole cover. Disconnect park/neutral position switch connector. Disconnect solenoid connector. Remove nut and disconnect shift control cable from lever. Remove clip and disconnect shift control cable from bracket.
7. Remove 3 front side engine mounting bolts. Loosen 2 clamps and disconnect 2 hoses at oil cooler. Remove 2 bolts and disconnect steering return pipe. Remove 2 grommets and nuts at left side transaxle mount. Remove 2 grommets and 4 nuts at rear engine mount. Remove 4 front stabilizer bar bracket mounting bolts. Remove 2 steering gear mounting bolts. Support steering gear using rope or wire.
8. Remove torque converter bolts. Install engine sling and attach hoist to engine. Support front frame assembly and transaxle with appropriate jacks. Remove 6 bolts and 4 nuts from front frame and remove front frame assembly.
9. Remove bolt, nut and exhaust manifold plate. Remove 3 remaining engine-to-transaxle lower bolts. Separate transaxle from engine. Lower transaxle from vehicle. Remove torque converter.
10. Before installation, measure torque converter mounting depth. (Scheme 1) Measure distance between torque converter mounting surface and transaxle case front surface. See «TORQUE CONVERTER MOUNTING DEPTH»(ref-129029-S08145704382001111000000) table. If distance is less than specified, reposition torque converter until fully seated. Install Green torque converter bolt first, and then install remaining bolts.
11. To complete installation, reverse removal procedure. Tighten all nuts and bolts to specification. See «TORQUE SPECIFICATIONS»(ref-129029-S02607269202001111000000). Replace 4 exhaust manifold nuts and 3 gaskets. When installing "V" bank cover fastener, remove fastener after installation, reposition as necessary, then position and push in. Refill all fluids to proper levels. Adjust shift control cable and park/neutral position switch, if necessary. Check front wheel alignment and road test vehicle.

Removal & Installation (RX300 With U-140E Transaxle)

1. Remove hood. Remove hood-to-cowl top seal. Remove left and right cowl top ventilator louvers. Remove left and right wiper arm and blade assemblies. Remove wiper motor and link assembly. Remove outer front cowl top panel assembly.
2. Remove air cleaner and battery. Disconnect 2 speed sensor connectors. Remove 4 wiring harness mounting bolts. Separate wiring harness from wiring harness clamp. Disconnect electrical connector from starter. Remove 2 starter bolts. Remove nut and disconnect terminal. Remove starter. Remove 2 bolts, nuts and exhaust manifold bracket.
3. Remove No. 2 front exhaust pipe at manifold, and front exhaust pipe. Remove 5 transaxle upper side mounting bolts. Raise and support vehicle. Remove front wheels. Remove engine undercover. Remove axle shafts. See appropriate AXLE SHAFTS article in AXLE SHAFTS & TRANSFER CASES. Remove exhaust manifold bracket mounting bolt. Disconnect left and right stabilizer bar links.
4. Support steering gear using rope or wire. Remove 2 steering gear mounting bolts. Disconnect park/neutral position switch connector. Disconnect solenoid connector. Remove nut and disconnect shift control cable from lever. Remove clip and disconnect shift control cable from bracket.
5. Remove 2 bolts and disconnect power steering hose from frame. Remove 2 grommets and nuts at left side transaxle mount. Remove 2 grommets and 4 nuts at rear engine mount. Remove 2 engine mounting absorber bolts. Remove 3 front side engine mount bolts. Loosen 2 clamps and disconnect 2 oil cooler hoses.
6. Remove 2 bolts and access cover to torque converter bolts. Remove torque converter bolts. Install engine sling and attach hoist to engine. Support transaxle with appropriate jack. Remove 8 bolts from front frame. Remove left and right rear lower braces. Remove front frame assembly.
7. Remove 3 remaining engine-to-transaxle lower bolts. Separate transaxle from engine. Lower transaxle from vehicle. Remove torque converter.
8. Before installation, measure torque converter mounting depth. (Scheme 1) Measure distance between torque converter mounting surface and transaxle case front surface. See «TORQUE CONVERTER MOUNTING DEPTH»(ref-129029-S08145704382001111000000) table. If distance is less than specified, reposition torque converter until fully seated. Install Green torque converter bolt first, and then install remaining bolts.
9. To complete installation, reverse removal procedure. Tighten all nuts and bolts to specification. See «TORQUE SPECIFICATIONS»(ref-129029-S02607269202001111000000). Refill all fluids to proper levels. Adjust shift control cable and park/neutral position switch, if necessary. Check front wheel alignment and road test vehicle.

Removal & Installation (RX300 With U-140F Transaxle)

1. Transaxle and engine must be removed as an assembly. For engine removal, see appropriate article in ENGINES. Once engine and transaxle have been removed, disconnect electrical connector at starter. Remove 2 bolts and starter.
2. Remove bolt, nut and stay for left and right side exhaust manifold. Remove 5 bolts and right side stiffener plate. Remove 2 bolts and access cover to torque converter bolts. Remove torque converter bolts. Remove 3 engine-to-transaxle lower bolts.
3. Remove bolt and disconnect ground cable from transaxle. Disconnect park/neutral position switch, solenoid and 2 speed sensor connectors. Disconnect wiring harness from clamp. Remove 5 transaxle upper side mounting bolts. Disconnect ground cable. Remove transaxle from engine.
4. Before installation, measure torque converter mounting depth. (Scheme 1) Measure distance between torque converter mounting surface and transaxle case front surface. See «TORQUE CONVERTER MOUNTING DEPTH»(ref-129029-S08145704382001111000000) table. If distance is less than specified, reposition torque converter until fully seated. Install Black colored torque converter bolt first, and then install remaining bolts.
5. To complete installation, reverse removal procedure. Tighten all nuts and bolts to specification. See «TORQUE SPECIFICATIONS»(ref-129029-S02607269202001111000000). Refill all fluids to proper levels. Adjust shift control cable and park/neutral position switch, if necessary. Check front wheel alignment and road test vehicle.

Removal & Installation (GS300)

1. Disconnect negative battery cable. Remove dipstick and oil filler tube. Remove air cleaner, mass airflow meter and intake air connector pipe assembly. Remove 8 nuts, 2 gaskets and exhaust manifold with catalytic converter from engine. Raise and support vehicle.
2. Remove engine undercover. Remove oxygen sensor. Remove 2 bolts and front floor center brace, located in front of transmission oil pan. Remove 3 bolts, nuts and 2 gaskets from exhaust pipes. Remove 2 bolts and exhaust pipe support bracket. Remove 4 bolts and 2 gaskets at tailpipes.
3. Remove front and center exhaust pipes. Remove 10 bolts and 2 heat insulators. Place reference marks on drive shaft flange(s) for installation reference. Unbolt and remove drive shaft with center support bearing. Plug transmission at tailshaft to prevent ATF leakage (if necessary).
4. Disconnect shift control rod from shift lever. Loosen 2 oil cooler pipe union nuts at transmission. Disconnect 3 clamp set bolts. Disconnect and remove oil cooler pipes. Remove hole cover to gain access to torque converter bolts. Remove torque converter bolts. Using appropriate transmission jack, support transmission.
5. Remove engine rear mounting bolts. Tilt rear of transmission down. Ensure radiator fan does not come in contact with fan shroud. Disconnect vehicle speed sensor connector. Disconnect O/D direct clutch speed sensor connector. Disconnect solenoid connector. Disconnect park/neutral position switch connector. Unbolt all wiring harness clamp bolts.
6. Disconnect electrical connections at starter. Remove 2 starter bolts and starter. Remove transmission-to-engine mounting bolts and ground cable (if equipped). Move transmission rearward, and lower from vehicle.
7. Before installation, measure torque converter mounting depth. (Scheme 1) Measure distance between torque converter mounting surface and transmission case front surface. See «TORQUE CONVERTER MOUNTING DEPTH»(ref-129029-S08145704382001111000000) table. If distance is less than specified, reposition torque converter until fully seated. Install Black torque converter bolt first, and then install remaining bolts.
8. To complete installation, reverse removal procedure. Tighten all nuts and bolts to specification. See «TORQUE SPECIFICATIONS»(ref-129029-S02607269202001111000000). Install NEW "O" ring on oil filler tube. Install NEW exhaust manifold gaskets, exhaust gaskets and exhaust pipe nuts. Refill all fluids to proper levels. Road test vehicle.

Removal & Installation (GS430 & LS430)

1. Disconnect negative battery cable. Remove dipstick. Raise and support vehicle. Remove engine undercover. On LS430, remove front suspension protector. On GS430, remove 2 bolts and front floor center brace located in front of transmission oil pan. On all models, disconnect oxygen sensors. Remove both front catalytic converters from exhaust pipes.
2. Remove 2 bolts and support bracket. On GS430, remove 4 bolts and 2 gaskets at tailpipes. On LS430, remove pipe clamp, set bolt and gasket. Remove front exhaust pipe. On all models, remove catalytic converters from exhaust manifolds. On LS430 models, remove heat insulator and engine rear mounting member bracket plate. On GS430, remove 2 nuts, 3 bolts and 2 heat insulators.
3. On LS430, remove oil filler tube. Remove second heat insulator. Remove center floor crossmember brace. On all models, place reference marks on drive shaft flanges for installation reference. Unbolt and remove drive shaft with center support bearing.
4. Disconnect shift control rod from shift lever. Loosen 2 oil cooler pipe union nuts at transmission. Disconnect 3 clamp set bolts. Disconnect and remove oil cooler pipes.
5. Remove 2 bolts and access cover to torque converter bolts. Remove torque converter bolts. Using appropriate transmission jack, support transmission.
6. Remove engine rear mounting bolts. Tilt rear of transmission down. Ensure radiator fan does not come in contact with fan shroud. Disconnect vehicle speed sensor connector. Disconnect O/D direct clutch speed sensor connector. Disconnect solenoid connector. Disconnect park/neutral position switch connector. Unbolt all wiring harness clamp bolts. Remove transmission-to-engine mounting bolts. Move transmission rearward, and lower from vehicle.
7. Before installation, measure torque converter mounting depth. (Scheme 1) Measure distance between torque converter mounting surface and transmission case front surface. See «TORQUE CONVERTER MOUNTING DEPTH»(ref-129029-S08145704382001111000000) table. If distance is less than specified, reposition torque converter until fully seated. Install Black torque converter bolt first, and then install remaining bolts.
8. To complete installation, reverse removal procedure. Tighten all nuts and bolts to specification. See «TORQUE SPECIFICATIONS»(ref-129029-S02607269202001111000000). Install NEW "O" ring on oil filler tube. Install NEW exhaust gaskets and catalytic converter nuts. Refill all fluids to proper levels. Road test vehicle.

Removal & Installation (IS300)

1. Remove level gauge. Remove bolt and filler pipe with "O" ring. Remove air cleaner, MAF meter and intake air connector pipe assembly. Disconnect 3 connectors from exhaust manifold. Remove 8 nuts, 2 gaskets and exhaust manifold with catalytic converter.
2. Raise and support vehicle. Remove No. 1 and No. 2 engine under covers. Remove left front side floor center cover. Remove No. 1 rear floor board. Drain engine coolant. Remove upper radiator house from radiator. Remove front and center exhaust pipes.
3. Remove shift control rod assembly. Disconnect oil cooler pipe. Remove hole plug. Turn crankshaft to gain access to each bolt. Hold crankshaft pulley nut with wrench, and remove 6 bolts.
4. Support transmission with jack. Remove 4 engine rear support member bolts. Tilt down transmission. Disconnect O/D direct clutch speed sensor, vehicle speed sensor, park/neutral switch and solenoid connectors. Disconnect wire harness from clamps on transmission. Disconnect connector and wire from starter. Remove 2 bolts and starter. Remove 9 bolts, ground cable and transmission.
5. Before installation, measure torque converter mounting depth. (Scheme 1) Measure distance between torque converter mounting surface and transmission case front surface. See «TORQUE CONVERTER MOUNTING DEPTH»(ref-129029-S08145704382001111000000) table. If distance is less than specified, reposition torque converter until fully seated
6. To complete installation, reverse removal procedure. Tighten all nuts and bolts to specification. See «TORQUE SPECIFICATIONS»(ref-129029-S02607269202001111000000). Install NEW "O" ring on oil filler tube. Install NEW exhaust gaskets and catalytic converter nuts. Refill all fluids to proper levels. Road test vehicle.

Removal & Installation (LX470)

1. Remove battery and tray. Remove air cleaner vent hose. Remove drive belt. Remove fan and fluid coupling assembly. Remove fan shroud. Remove radiator. Remove dipstick. Remove oil filler tube upper side mounting bolt. Disconnect 2 bleeder hoses. Remove transfer case shift lever knob. Remove upper console panel.
2. Remove 4 bolts and transfer case shift lever boot. Remove No. 1 and 2 engine undercovers. Remove left and right exhaust pipes. Place reference marks on drive shaft flanges for installation reference. Remove front and rear drive shafts.
3. Remove bolt and oil filler tube. Remove "O" ring from oil filler tube. Remove nut and plate washer. Remove transmission control rod. Remove clip, plate washer and collar, and disconnect transfer case shift lever rod assembly.
4. Disconnect transmission speed sensor and solenoid connectors. Disconnect transmission fluid temperature sensor connector. Disconnect park/neutral position switch connector. Disconnect center differential lock indicator switch connector. Disconnect motor actuator connector. Disconnect L4 position switch connector. Disconnect neutral position switch connector. Disconnect 5 clamps.
5. Remove bolts and access cover to torque converter bolts. Remove torque converter bolts. Loosen 2 oil cooler pipe union nuts at transmission. Remove oil cooler pipe clamp mounting bolt. Remove 2 oil cooler pipe union nuts.
6. Support transmission with jack. Remove 8 bolts and 2 nuts, then remove crossmember. Lower rear of transmission and remove transmission wire clamp bolt. Remove 10 transmission-to-engine bolts. Remove transmission.
7. Before installation, measure torque converter mounting depth. (Scheme 1) Measure distance between torque converter mounting surface and transmission case front surface. See «TORQUE CONVERTER MOUNTING DEPTH»(ref-129029-S08145704382001111000000) table. If distance is less than specified, reposition torque converter until fully seated. Install Green colored torque converter bolt first, and then install remaining bolts.
8. To complete installation, reverse removal procedures. Tighten all nuts and bolts to specification. See «TORQUE SPECIFICATIONS»(ref-129029-S02607269202001111000000). Install NEW "O" ring on oil filler tube. Check and refill all fluid levels as necessary. Road test vehicle.

TORQUE CONVERTER MOUNTING DEPTH (1)

Scheme 1