2003 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Torque Specification

WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

1GF-FE:Β 

TORQUE SPECIFICATION - 1GF-FE

Part Tightened N.m kgf.cm ft.lbf
Oil pressure switch x Oil filter bracket sub-assy 15 152 11
Oil pan drain plug x Oil pan sub-assy No.2 40 408 30
Timing chain cover sub-assy x Cylinder head and block 23 235 17
Oil filter bracket sub-assy x Timing chain cover sub-assy 19 194 14
Camshaft timing oil control valve assy x Timing chain cover sub-assy 9.0 92 80 in.lbf
Ignition coil assy x Cylinder head cover sub-assy 10 102 7
V-bank cover x Intake air surge tank 7.5 76 66 in.lbf
Oil pump relief valve x Oil pump cover 49 500 36
Oil pump cover x Timing chain or belt cover sub-assy 9.0 92 80 in.lbf
Oil pipe x Timing chain or belt cover and oil pump cover 9.0 92 80 in.lbf
Oil cooler assy x Oil filter bracket sub-assy 68 693 50

2UZ-FE:Β 

TORQUE SPECIFICATION - 2UZ-FE

Part Tightened N.m kgf.cm ft.lbf
No. 2 oil pan x Drain plug 39 398 29
Oil pump x Cylinder block 14 mm head 31 311 23
Others 16 160 11
Oil pump body cover x Oil pump body 10 105 7
Oil pump relief valve x Oil pump body 49 500 36
Oil cooler x Oil filter bracket 69 700 51
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:

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

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