Sunroof help again.

[Jscott]

Ok. So I have 90 olds CS and I’ve been bagging my head trying to figure out why the sunroof won’t retract fully. It tilts fine. I thought it was an aftermarket sunroof but I checked the RPO code 5F3 which states it is factory. I was told that gm never made a fully retracting glass in those years. Is that true??? It’s just funny how they have a whole roof system with guide rails all the way back and only have a tilt option. Any insight would be appreciated. Thanks. 

[Black92GS]

They're supposed to retract.  They don't "fully" retract in the sense you no longer see them, but they're supposed to retract nearly all of the way. When I had my 92 Cutlass many years back, the sunroof didn't move properly.  I believe the drive gear was stripped, and I ended up just pulling an entire sunroof unit from a car in the junkyard and replacing it.

I also had the sunroof in my 2000 Regal break, to where it wouldn't retract properly, and would only tilt.  I never looked into fixing it...but it acted similar to a power window with a broken track. 

[Psych0matt]

what do you m ean by wont retract "fully"? When all the way back there's probably 3" or so iirc that doesn't fully go back into the roof