2005 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Torque Specification

TORQUE SPECIFICATION

Part tightened N.m kgf.cm ft.lbf
TWC at Exhaust manifold 62 630 46
Exhaust pipe assy front at TWC 44 450 32
Exhaust pipe No. 1 support bracket sub-assy at Transmission 44 450 32
Exhaust pipe assy front at Exhaust pipe No. 1 support bracket sub-assy 44 450 32
Heated oxygen sensor at Exhaust pipe assy front 44 450 32
Front floor heat insulator No. 1 at Body 5.4 55 48 in.lbf
Front floor heat insulator sub assy No. 1 at Body 5.4 55 48 in.lbf
Front floor heat insulator sub assy No. 2 at Body 5.4 55 48 in.lbf
Front floor brace center at Body 7.4 75 65 in.lbf
Propeller shaft heat insulator at Fuel tank protector sub-assy No. 1 5.4 55 48 in.lbf
Exhaust pipe support sub-assy No. 3 at Body 13 133 10
Exhaust pipe assy tail (RH) at Exhaust pipe protector lower No. 5 10.5 107 8
Exhaust pipe assy tail (LH) at Exhaust pipe protector lower No. 6 10.5 107 8 Main muffler heat insulator at Body 5.4 55 48 in.lbf
Main muffler heat insulator (LH) at Body 5.4 55 48 in.lbf
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.