1. Check for Obstructions:
* Visual Inspection: Carefully examine the wiper arm and linkage for any obvious obstructions, like debris, ice, or a stuck piece of the linkage itself. A small piece of something could be preventing full movement.
2. Linkage Problems:
* Worn or Broken Linkage: The most common cause is wear and tear on the linkage connecting the wiper motor to the wiper arm. The plastic parts can become brittle and crack or the pivoting points can seize. This requires visual inspection and possibly replacement of the linkage components. You'll need to access this by removing some of the trim around the wiper motor. This is often the culprit if the motor appears to be working slightly.
3. Wiper Motor Issues (Less Likely, but Possible):
* Weak Motor: While the arm moves a bit, a weak motor might not have enough power to overcome friction in the linkage. This is less likely given the slight movement, but a thorough check is recommended (see below).
* Internal Motor Failure (Rare): Sometimes the motor's internal components might be failing, even if it seems to be partially working. This is usually accompanied by other unusual noises.
4. Troubleshooting Steps:
* Access the Wiper Motor: You'll likely need to remove the cowl (the plastic cover over the windshield wipers) to get a clear view of the linkage and motor. Consult a repair manual specific to your 2000 Oldsmobile Intrigue for detailed instructions on cowl removal. These manuals often provide diagrams.
* Inspect the Linkage: Carefully examine each joint and connection point in the linkage. Look for any signs of breakage, excessive wear, or binding.
* Test the Motor (If Linkage Seems OK): With the cowl removed, you might be able to manually move the wiper arm and feel for resistance. If the linkage moves freely and the motor is still weak, then the motor itself may be failing.
* Check for Power: With the ignition on and the wiper switch activated, check for power going to the wiper motor using a multimeter. Be very careful working near electrical components, disconnect the battery negative terminal if unsure. If no power reaches the motor, then check the fuses (check your owner's manual for the correct fuse). If you have power but the motor still barely works, it is likely faulty.
5. Repair/Replacement:
* Linkage Repair/Replacement: If the linkage is broken or worn, you'll likely need to replace it. Parts may be available online or at auto parts stores.
* Wiper Motor Replacement: If the motor is faulty, you'll need to replace the entire wiper motor assembly. This is a more involved repair.
Important Note: Before doing any repairs, consult a repair manual for your specific vehicle. This will give you detailed instructions on removing parts and accessing the wiper motor and linkage. Improper disassembly could lead to damage. If you're not comfortable working on your car yourself, take it to a qualified mechanic.
