Concord L6-258 4.2L VIN C 2-bbl (1982)
Thermostatic Air Cleaner Vacuum Switch: Testing and Inspection
1. Disconnect hoses from thermal switch.
2. Connect vacuum pump and vacuum gauge to switch.
3. Apply 14 inches Hg to switch.
4. Valve should hold vacuum when its temperature is below 40° F and should release vacuum when switch temperature is above 55° F. Replace
switch if defective.
