Pickup 2WD L4-2.3L (4ZD1) (1988)
Carburetor Jet Solenoid: Testing and Inspection
Fig. 13 Checking Air Vent Solenoid Valve
1.
Make sure the air vent solenoid valve body and spring are free from damage.
2.
Apply 12 volts to the solenoid valve.
3.
Check to see if the valve operates smoothly with an audible and consistent click.
4.
Replace the valve if damaged in any way.