Vacuum Control Valve (Tercel)
Apply more than 3.5 in. Hg vacuum to port S. Plug ports R and Y, then blow air into port T. Air should flow out ports U, V, Z and, on Calif. models, W. With no vacuum at port S, no air should flow.
Apply more than 3.5 in. Hg vacuum to port S. Plug ports R and Y, then blow air into port T. Air should flow out ports U, V, Z and, on Calif. models, W. With no vacuum at port S, no air should flow.