On my '69, the wiper door will open perfectly but will not close under it's own power. Headlights open properly but alittle lazy on closing. All lines are attached properly. I can't seem to find anything visibly wrong. the only thing I have messed with was removing the wiper arms themselves to recondition them. (still off the car if that matters) Anyone else have this problem before? I understand GM made the door open by default if anything went wrong with the system. where should I start on this DC? Thanks Ya'll !!!