Contour Enthusiasts Group Archives Forums General Troubleshooting Sunroof / Moonroof doesn't stop when it should

Searched and found one post, but wanted to get more info.

When closing the moonroof, it goes past where it should, right up to the vent position. Likewise when I go to close it from vent position, it goes past the closed position and starts to slide to the rear.

Advice from another post (back in 2003) said the motor was starting to go, and you'd just have to replace it.

I was thinking it was just a worn out switch, maybe. Motor seems to work fine, otherwise. Just the control is off. Still, might be worth replacing the whole motor on a 10 year-old car.

If it is a "whole motor" issue, is there any way that it would be fixed by just replacing the gears? I can't imagine it, but you never know.

TIA.

Perhaps your "cam shaft" is out of alignment? Link

Problem description from that post doesn't seem to match what is happening in my situation.

Panel stops at both ends, and has full travel, front to rear. It just blows past the closed position. Could be a pin or nub somewhere that's worn off.

Welp, can't explain the earlier behavior exactly, but on the way home from work today she was hard broke and stuck in the vent position. Didn't respond at all to any button push.

Took everything apart and the black plastic "cover" from the top of the motor is shattered to little pieces. I've no idea how long it's been like that.

If you've never seen this thing, it takes some study to realize that it's not just a dust cover, but an integral piece of the system that holds the gears and some other tiny bits in their proper places. So, naturally, some internal motor bits were allowed to move in ways they weren't supposed to.

My gears look fine. No sign of wear or deformation at all. It looks to me that if I could just replace that cover, I could put it all together again and it would work.

I figure there's a snowball's chance in a Texas July that this piece is actually available. I'll keep searching, but if anyone has any tips on where to look or what to call it, I'd appreciate it.