* Broken wiper motor: This is the most common culprit. The motor might have burned out, seized up, or simply have a broken internal component preventing it from functioning.
* Electrical issues:
* Blown fuse: Check your owner's manual to locate the wiper fuse and see if it's blown.
* Faulty wiper switch: The switch itself might be malfunctioning, preventing power from reaching the motor. This often manifests as intermittent wiper operation before complete failure.
* Wiring problems: A short circuit, corroded connection, or broken wire in the wiring harness leading to the motor can prevent it from working. This is often caused by age and exposure to the elements.
* Park motor issue (if applicable): Some wiper systems have a separate motor to park the wipers. A failure in this mechanism would leave them stuck up.
* Mechanical issues:
* Seized linkage: The linkage connecting the motor to the wiper arms might be seized due to rust, debris, or lack of lubrication. This prevents the arms from moving.
* Broken linkage: A part of the linkage might be broken, preventing movement.
* Wipers frozen to the windshield: Less likely in warmer climates, but if ice or extremely thick frost has accumulated on the windshield, it might be preventing the wipers from moving.
* Vacuum system problem (less likely, but possible): Older vehicles *sometimes* used a vacuum system to control wipers. A leak or malfunction in the vacuum system could cause them to malfunction. This is less probable on a 2001 Venture, but worth considering if other checks yield nothing.
Troubleshooting Steps:
1. Check the fuse: This is the easiest and quickest check.
2. Listen for the motor: Try turning the wipers on. Do you hear any clicking or whirring from the motor? If not, the motor itself might be the problem.
3. Manually try to move the wiper arms: See if you can manually move them. If they are stiff or won't budge, the linkage is likely the issue.
4. Inspect the linkage: Carefully examine the linkage for any obvious breaks, rust, or binding.
5. Check wiring connections: Inspect the wiring harness for any damage, corrosion, or loose connections.
If you're not comfortable working on your car's electrical system or mechanical components, it's best to take it to a qualified mechanic for diagnosis and repair. They have the tools and expertise to properly diagnose the problem and fix it safely.
