Manual Transmission Equipped Models
- Detach air hose from bottom of air control valve. Start and run engine at idle. Remove vacuum line from air by-pass valve.
- Air should come from bottom outlet of air control valve. Plug disconnected vacuum line. No air should flow from bottom outlet of valve.
- Remove intake manifold vacuum line from relief valve on side of air control valve. Unplug by-pass valve vacuum line and connect this line to nipple on side of relief valve from which intake manifold vacuum line was removed.
- Air should now come from bottom outlet of air control valve. If valve does not respond as indicated, check vacuum lines. If okay, replace air control valve.