To check if the solenoid is faulty, you can try tapping it with a hammer while someone else tries to start the van. If the van starts after you tap the solenoid, it is likely that the solenoid is faulty and needs to be replaced.
Another possible cause of a clicking sound near the battery is a bad connection at the battery terminals. Make sure that the battery terminals are clean and tight, and that the cables are securely attached. If the connections are loose, it can cause the starter to receive insufficient power and make a clicking sound.
If the starter solenoid and battery connections are both in good condition, the clicking sound may be caused by a problem with the starter motor itself. The starter motor may be damaged or worn out, and it may need to be replaced.
It is also possible that the clicking sound is caused by a problem with the ignition switch or the wiring between the ignition switch and the starter. If you have ruled out the starter solenoid, battery connections, and starter motor as the cause of the problem, you may need to have a qualified mechanic diagnose the issue and make the necessary repairs.
