Vacuum Check Valve

Ensure air flows from Orange port to Black port. Air should not flow from Black port to Orange port.

Fig 1: Pulse Air System Components & Operating Parameters (3.0L)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Testing Pulse Air System (3.0L)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Checking Vacuum Switching Valve

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002