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HOMESERVICE MANUALSLEXUS2004IS 300 BASE, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESPECIFICATIONSSFI (SERVICE SPECIFICATIONS)SFITORQUE SPECIFICATION
2004 Lexus IS 300 Base, Automatic

Torque Specification

2004 Lexus IS 300 Base, AutomaticSECTION Torque Specification
Torque Specification

Part tightened N.m kgf.cm ft-lbf
Fuel line Union bolt 29 300 22
Flare nut for use with SST 30 310 22
for use without SST 38 387 28
Fuel tank vent tube set plate x Fuel tank 3.5 36 31 in..lbf
Fuel inlet hose x Body 9.0 90 80 in..lbf
Delivery pipe x Intake manifold 21 210 15
Fuel pressure pulsation damper x Fuel pipe support 32.5 325 24
Fuel inlet pipe x Intake manifold 9.0 90 80 in..lbf
No. 2 vacuum pipe x Intake manifold 21 210 15
Fuel sender gauge x Fuel tank 1.5 15 13 in..lbf
Fuel tank band x Body 39 400 29
MAF meter x Air cleaner 10.7 109 8
Throttle body bracket x Throttle body 21 210 15
Throttle body bracket x Cylinder head 21 210 15
Throttle position sensor x Throttle body 1.7 17.5 15 in..lbf
Throttle control motor x Throttle body 3.7 37.5 33 in..lbf
Throttle control motor cover x Throttle body 1.7 17.5 15 in..lbf
Accelerator pedal position sensor x Throttle body 3.7 37.5 33 in..lbf
Camshaft tinning oil control valve x No. 3 camshaft bearing cap 8.0 80 71 in..lbf
No. 3 timing belt cover x Cylinder head cover 8.0 80 71 in..lbf
Intake air connector x Air intake chamber 28 280 21
Air intake chamber x Intake manifold 28 280 21
Vacuum control valve set x Intake manifold 21 210 15
ECT sensor x Cylinder head 19.6 200 14
Knock sensor x Cylinder block 44 450 33
PS pump rear stay x Manifold stay 39.2 400 29
PS pump rear stay x PS pump bracket 39.2 400 29
Heated oxygen sensor x Exhaust manifold 45 450 33
Heated oxygen sensor x Front exhaust pipe 45 450 33
RENDER: 1.0x

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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.