Expo AWD L4-2350cc 2.4L SOHC 16 Valve (1993)
Canister Purge Solenoid: Testing and Inspection
Purge Control System
Purge Control Solenoid
Purge Control Solenoid Valve Inspection (Leaks)
1.
Mark and then disconnect the vacuum hoses (black, red striped) from the solenoid valve.
2.
Disconnect the harness connector from the solenoid valve.
3.
Connect a hand vacuum pump to the nipple the red striped hose was removed from.
Fig. 1 Purge Control Solenoid Valve Inspection (Operation)
4.
Apply vacuum to the solenoid valve and verify that when power is applied vacuum leaks and when power is removed vacuum holds.
Purge Control Solenoid Valve Inspection (Coil Resistance)
5.
Using an ohm meter measure the solenoid coil resistance.
Resistance Value
36 - 44 ohms @ 68° F (20° C).
Purge Port Vacuum
Purge Port Vacuum Inspection
