Inspect Intake Air Control Valve
WARNING: This page is about a different car, the 2007 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.
- With 39.9 kPa (300 mm Hg, 11.8 in.Hg) of vacuum applied to the actuator, check that the actuator rod moves. See Fig 1.
- One minute after applying the vacuum, check that the actuator rod does not return. If operation is not as specified, replace the intake manifold.