2008 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Torque Specifications

3UZ-FE INTAKE - TORQUE SPECIFICATIONS

Part tightened N*m kgf*cm ft.*lbf
Vacuum switching valve x Vacuum tank 1.4 14 12 in.*lbf
Intake air control valve x Intake manifold upper 8.5 87 75 in.*lbf
Intake air control valve x Intake manifold upper 8.5 87 75 in.*lbf
Intake manifold upper x Intake manifold lower 18 184 13
Vacuum control valve x Intake manifold lower 18 184 13
Intake manifold x Cylinder head 18 184 13
No. 2 fuel pipe x Fuel main hose with SST 28 286 21
without SST 35 357 26
Purge VSV x Intake manifold 7.5 76 66 in.*lbf
No. 4 V-bank cover bracket x Intake manifold 7.5 76 66 in.*lbf
No. 3 V-bank cover bracket x Intake manifold 7.5 76 66 in.*lbf
No. 2 V-bank cover bracket x Intake manifold 7.5 76 66 in.*lbf
No. 1 V-bank cover bracket x Intake manifold 7.5 76 66 in.*lbf
Intake air connector pipe x for hose clamp 4.0 41 35 in.*lbf
for bolt 5.0 51 44 in.*lbf
V-bank cover x V-bank cover bracket 5.0 51 44 in.*lbf
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.