No. 2 Air Control Valve (ACV)
Remove the No. 2 ACV. With a vacuum pump attached, gradually apply vacuum. ACV stem should begin to move at 2.73 in. Hg of vacuum, and stop movement at 4.7 in Hg of vacuum. Replace No. 2 ACV if not within specification.
Remove the No. 2 ACV. With a vacuum pump attached, gradually apply vacuum. ACV stem should begin to move at 2.73 in. Hg of vacuum, and stop movement at 4.7 in Hg of vacuum. Replace No. 2 ACV if not within specification.