2004 Lexus IS 300 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Torque Specification

Torque Specification

Part tightened N.m kgf.cm ft.lbf
Extension housing x Transmission case 34 345 25
Transmission mounting bracket x Extension housing 12 120 9
Engine rear support member x Frame 25 260 19
Engine rear support member x Transmission mounting bracket 12 120 9
Vehicle speed sensor set bolt 5.4 55 48 in.lbf
O/D direct clutch speed sensor set bolt 5.4 55 48 in.lbf
AFT temperature sensor connector set bolt 5.4 55 48 in.lbf
Drain plug 20 205 15
Shift solenoid valve SLU and SLT set bolt 6.4 65 56 in.lbf
Shift solenoid valve SLN and No. 4 set bolt 10 100 7
Shift solenoid valve clamp set bolt 6.4 65 56 in.lbf
Shift solenoid valve No. 1 and No. 3 6.4 65 56
Shift solenoid valve No. 2 10 100 7
Shift control rod set nut 13 130 9
Valve body x Transmission case 10 100 7
Oil pan x Transmission case 7.4 75 65 in.lbf
Oil strainer x Valve body 10 100 7
Parking lock pawl bracket x Transmission case 7.4 75 65 in.lbf
Control shaft lever set nut 13 130 9
Shift lever guide housing assembly x Shift lever plate 4.9 50 43 in.lbf
Floor shift lever assembly set bolt 8.3 85 73 in.lbf
Oil cooler pipe clamp bolt 5.4 55 48 in.lbf
Oil cooler pipe union nut 44 450 33
Transmission x Engine 14 mm head 37 380 27
17 mm head 72 730 53
Starter x Transmission 37 380 27
Exhaust pipe assembly x Exhaust manifold 62 632 46
Exhaust manifold with TWO x Engine 39 400 29
Pipe support bracket x Transmission 43 438 32
Torque converter clutch x Drive plate 48 490 35
Propeller shaft x Differential 74 750 54
Propeller shaft x Body 49 500 36
Drive plate x Crankshaft 83 850 61
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.