2012 Lexus IS 350CFACTORY OEM SERVICE PROCEDURE

Torque Specifications

Part Tightened N*m kgf*cm ft.*lbf
Fuel delivery pipe sub-assembly x Intake manifold 17 173 13
No. 1 fuel delivery pipe x Cylinder head 26 265 19
No. 2 fuel delivery pipe x Cylinder head 26 265 19
No. 3 fuel pipe x No. 1 fuel delivery pipe 10 102 7
No. 3 fuel pipe x No. 2 fuel delivery pipe 10 102 7
No. 2 fuel pipe x No. 1 fuel delivery pipe 10 102 7
No. 1 fuel pipe x Cylinder head cover 10 102 7
Water hose joint x Camshaft housing sub-assembly RH 10 102 7
Fuel pressure pulsation damper x Fuel pump (for high pressure)
: without SST		 40 408 30
Fuel pressure pulsation damper x Fuel pump (for high pressure)
: with SST		 34 347 25
Fuel pressure sensor x No. 1 fuel delivery pipe
: without SST		 42 428 31
Fuel pressure sensor x No. 1 fuel delivery pipe
: with SST		 32 324 23
Fuel relief valve assembly x No. 2 fuel delivery pipe 40 408 29
Injector driver x Engine assembly 10 102 7
Fuel tank vent tube set plate x Fuel tank 6.0 61 53
Fuel pump (for high pressure) x Cylinder head cover RH 25 255 18
No. 2 fuel pipe x Fuel pump (for high pressure) 30 306 22
Fuel pump resistor x Body 5.0 51 44 in.*lbf
Fuel pump resistor x Ground wire 8.0 80 69 in.*lbf
No. 1 fuel tank breather tube sub-assembly x Fuel tank assembly 1.5 15 13 in.*lbf
Fuel tank x Body 39 400 29
Parking brake cable assembly x Body
: for bolt A		 6.0 61 53 in.*lbf
Parking brake cable assembly x Rear suspension member sub-assembly
: for bolt B		 19 194 14
Fuel sender gauge assembly x Fuel tank assembly 1.5 15 13 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.

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