1996 - 2000 Rav4 EGR Diagnosis, Engine Testing, Bench Testing, EGR Valve, Vacuum Modulator, VSV

This video shows the layout, parts, and function of the EGR, or Exhaust Gas Recirculation, system on the ’96 - ’00 Rav4. The EGR Valve, EGR Vacuum Modulator, and VSV (Vacuum Switching Valve) are shown, testing, and explained. Check the Pinned Comment or the Timestamps below to skip around (links for the EGR Valve and VSV replacement videos are below the Timestamps): EGR Components Detailed Explanation: 00:01:10 What is EGR (Exhaust Gas Recirculation) 00:01:50 Path of Exhaust Gas from Exhaust Manifold to Intake 00:02:27 EGR Valve location and begin explanation 00:02:28 EGR Pipe location 00:03:08 EGR Valve in hand 00:04:15 EGR pintle when under vacuum 00:06:17 Connection between EGR Valve and Vacuum Modulator 00:06:35 The two “sides“ of the EGR circuit (vacuum side and exhaust side) 00:07:13 VSV, Vacuum Switching Valve explanation 00:08:59 VSV with shorter hoses for demonstration 00:11:18 VSV under vacuum, not energized 00:12:37