Try to move the arms. If both move together, suspect the linkage, but it they don't move easily, the worm gear inside the motor is likely stripped.
Looks like I misspoke about how the arms come off. I just looked at my '95 Grand Caravan and saw they no longer use the 15mm nuts on the pivots. Just lift the arm up and there is a tab on the side to pull out sideways. That tab will hold the arm up so you can use it as a lever to wiggle it until it lifts off the pivot.
Remove the plastic plate behind the hood to gain access to the linkages. If one is popped apart, use a pliers to squeeze it back together. If it pops off again, the plastic insert is worn out. Look for a replacement linkage at a salvage yard. The insert is not available separately.
Monday, August 9th, 2010 AT 7:17 PM