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Home >> Toyota >> 1987 >> Van LE, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> EGR Function Testing >> Component Testing >> Bi-Metallic Vacuum Switching Valve (BVSV) >> Pickup (Carbureted & Non-Turbo), 4Runner (Non-Turbo) & Celica

Pickup (Carbureted & Non-Turbo), 4Runner (Non-Turbo) & Celica

  1. Drain cooling system and remove BVSV. Cool BVSV to minimum temperature according to application using cool water. See BVSV SPECIFICATIONS  table.
  2. Apply air to the lower port. Air should escape from air filter located on top of valve assembly. Heat BVSV valve to maximum temperature according to application. See BVSV SPECIFICATIONS  table.
  3. Apply air to the lower port. Air should exhaust from the upper port but not through the air filter. Replace assembly if defective.