Speed Control Vacuum Pump
- Disconnect vacuum pump-to-servo vacuum hose. Attach vacuum gauge to vacuum pump. Disconnect vacuum pump harness connector. Using 4 jumper wires, connect battery voltage to vacuum pump connector terminal No. 1. Connect battery ground to vacuum pump connector terminals No. 2, 3 and 4. See Fig 1
- Vacuum gauge should indicate 15.7 in. Hg of vacuum or more. Disconnect the jumper wire from terminal No. 2 (release valve). See Fig 1
, The vacuum gauge should indicate 6 in. Hg of vacuum or less. Disconnect the jumper wire from terminal No. 3 (control valve). See Fig 1
Vacuum gauge should indicate 6 in. Hg of vacuum or less. If vacuum pump does not operate as specified, replace pump.
Courtesy of CHRYSLER CORP.