Extremely tight to lift up windows

[Bigal75]

Any ideas on what would cause the windows to be ultra tough to crank up? This is a 67 Coronet.

 

[69Bee]

Dirt, dried out grease, etc.. Clean and grease all of the window regulators, blow the dirt out of the window fuzzies.

 

[Dako]

I would 1st remove the interior panel, so I could see all the moving parts.

Most likely everything that was originally lubed is now dry, so I would WD-40 & regrease:
- the crank mechanism (aka regulator)
- the slide(s) at the end of the arm(s) going to the bottom of the window
- the rollers (i.e.: rear window)

If it's still stiff, it may need to be re-aligned...that being the channels. This can be a trial-and-error effort until you see what each adjustment effects. Sometimes loosening one or two adjustment points will let the window 'tell you' where it needs to go.

 

[Cranky]

It happened on my 66 Belvedere too....the window got to where it wouldn't even move and that's when I decided I put it off long enough and tore into it. After cleaning everything up and greased the regulator, it worked like new. Mine is a 2dr post but it was very easy to do and had it out of the door in 15 minutes.

 

[Bigal75]

OK so probably just a lack of lubrication. I guess I'll tear into it and see, thanks.

 

[Cranky]

OK so probably just a lack of lubrication. I guess I'll tear into it and see, thanks.

And dirt....

 

[moparcanuck]

Could be the felt in the slides is folded.