Cold Engine
Coolant temperature should be below 45°F (7°C). Disconnect vacuum hose from vacuum switch. See Figure. Start engine and ensure no vacuum can be felt at disconnected vacuum hose. Reconnect vacuum hose.
Coolant temperature should be below 45°F (7°C). Disconnect vacuum hose from vacuum switch. See Figure. Start engine and ensure no vacuum can be felt at disconnected vacuum hose. Reconnect vacuum hose.