Power window regulator

[JZLAJeep]

The power window regulator on the driver's door of our '96 XJ seemed to have issues. When rolling it up the regulator slows and makes a click every inch or so of travel. Bought a different one out of a '90 XJ that was being parted. Now that we've got it apart, I hope we are doing the right thing.

 

The regulator out of the parted XJ has a different motor and therefore different connection. Looks straightforward enough to swap those assuming the motor that I removed wasn't the issue. Need to drill some rivets and it should be a straight swap. We plan to hook everything up and test it outside the door before we put anything back in the door.

 

I wish I could reuse the brackets from the '96 because they are threaded rather than riveted to the door like the '90, but it looks like more trouble than it's worth to try to swap them.

 

Are we doing the right thing? Is a clicking window the regulator and not the motor?

 

The '96 regulator is the shiny one in the photos and the duller one is the '90 regulator.

 

[pizzaman09]

Clicking is the result of something that is stripped and slipping.

 

Could you get some appropriate riv-nuts to put into the 90 regulator to make it easy to install it?  

[Gojira94]

15 hours ago, pizzaman09 said:

Clicking is the result of something that is stripped and slipping.

 

Agreed. There's a worm gear on the motor side and a round gear inside the main housing. A broken tooth or two from age/ fatigue on the round gear is the issue. This same arrangement was the bane of headlight motors in multiple GM vehicles in the 80s-90s. I recently had to pull my manual MJ regulators. In lieu of the original rivets I used 1/4"- 20 x 1/2" bolts with prevailing torque nuts. Nylon lock nuts would work as well.

 

When you're done with the repair, you can pull the motor off the 96 regulator by bending back the motor housing tabs. Manually slide the flex shaft back and forth and you'll see the broken tooth/ teeth.