Auto-Cruise Vacuum Pump

Auto-cruise Vacuum Pump




1. Disconnect the vacuum hose from the auto-cruise vacuum pump and connect a vacuum gauge to the vacuum pump.
2. Disconnect the vacuum pump connector.
3. Check the auto-cruise vacuum pump and valves according to the following procedure:
1. Connect the positive battery terminal to auto-cruise vacuum pump connector terminal 1 and the negative battery terminal to terminals 2, 3 and 4. Then the vacuum gauge should read 27 kPa (8.0 in.Hg) or more.
2. The vacuum should be maintained when terminal 4 is disconnected from the negative battery terminal while terminals 1, 2 and 3 remain connected. Then the vacuum gauge should read 0 kPa (0 in.Hg) when terminal 2 is disconnected from the negative battery terminal while terminals 1 and 3 remain connected.
3. The vacuum should be maintained when terminal 4 is disconnected from the negative battery terminal while terminals 1, 2 and 3 remain connected. Then the vacuum gauge should read 0 kPa (0 in.Hg) when terminal 3 is disconnected from the negative battery terminal while terminals 1 and 2 remain connected.