Nova/Chevy II L4-1600cc 4ALC Nummi (1988)
Vacuum Pump: Testing and Inspection
Vacuum Pump
1.
Connect a hand held vacuum pump, J23738-A, or equivalent, to actuator side of vacuum pump.
2.
Connect positive battery terminal to terminal 1 of vacuum pump.
3.
Connect negative battery lead to terminal 2.
4.
Ensure vacuum of 7.87 inches Hg or above.
5.
If results are not as indicated, replace vacuum pump.