Windows no longer working within a week of one another
Ok, so I've searched but I've not found the solution.
All based around windows, I have three issues:
1) Driver-Rear window stopped working, it's currently cracked about 2-inches down.
2) Tailgate USED to only go down with key, but would go up with key or switch.
3) Tailgate stopped working, it's currently down about 6-inches
Item #1 - About a week ago, I parked my 87GW and I cracked all the windows so it wouldn't get too hot. When I got in after work and rolled up the windows, all went up except the driver side back glass. It will not go up or down with the switch or manually. Also the voltmeter in the dash does not register any drop when I hit the switch. The needle bounces a bit with all other switches.
Item #2 - When I bought the wagon a few years ago, the tailgate window would only go down if I have the key in the door and if I guided the glass down, it would get stuck a bit in the track going down. The window would go up fine with the key. The dash switch would only roll the window up.
Item #3 - Yesterday I was rolling the window down with the key in the tailgate and it went down about 6-inches and then just stopped altogether.
I've seen on here BabyWag says that motors rarely fail and it's often electrical. That being said, the motors have always been very slow to roll up and down.
A) So does it sound like one or both of these motors happened to fail?
B) I assume that item #2 requires a new switch, I've been meaning to do that, but since the window would work with the key, the new switch kept going down the priority level.
C) Can someone help guide how to test the motors? What tools will I need for this? I don't have a mA generator, would I need one?
Thank you for all your help. I've already purchased the motors so I can go ahead and get them in, I would just return them if it turns out I don't need them.
1987 Grand Wagoneer Stock
The original owner kept it in a garage and barely drove it, I bought it in Sept of '15 with 107K miles on the clock... so many of the parts that I pull off are still AMC originals.
Gone But Not Forgotten:
1993 Jeep XJ Cherokee
2000 Jeep TJ Wrangler