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K5 Endgate Window Poll

Where does your K5 Endgate window fall

  • Power - Works great, use it all the time, never touched it

    Votes: 120 28.4%

  • Power - Works great, use it all the time, but I've rebuilt it

    Votes: 66 15.6%

  • Power - You mean that window is supposed to roll down?

    Votes: 72 17.1%

  • Power - What Window?

    Votes: 18 4.3%

  • Manual - Works great, use it all the time, never touched it

    Votes: 45 10.7%

  • Manual - Works great, use it all the time, but I've rebuilt it

    Votes: 33 7.8%

  • Manual - You mean that window is supposed to roll down?

    Votes: 31 7.3%

  • Manual - What Window?

    Votes: 37 8.8%
  • Total voters
    422
Mine has the clunk and stops. It drove me crazy until I finally figured out what was catching. The metal channel that the glass sets in on the bottom was rusted and had swollen out thicker than it should be. As the window goes up, there comes a point that the regulator arms pass the edge of the metal channel. If they catch the channel it stops the window with a clunk. I was able to do a little tweaking and get them to pass, but I need to be looking for a new channel for the bottom soon.
 
mine was pretty bad. when i first got the truck i tried putting it down, and it just dropped:eek1: :eek1: opened up the access panel and went to look around at the track, then i said to myself, there should be a track in here somewhere:o, well i was right, there was, in about 5 rotted pieces on the bottom of the inside:eek1: :eek1: ...a little order from LMC and a couple hours of work and good as new, although she`s a little slow but i dont use it enough to care
 
Mine was (is) manual. My son took it apart to clean things up so it would work more smoothly. When he finished, he closed the tgate with the window down and the glass shattered. What a bummer. I'm going to replace it sometime. Luckily, I live in sunny CA.
 
I didn't know they made power rear windows, I've never owned a Blazer newer than '75...:p: I thought they were all manual.
 
Has anyone got the rear switch for the rear window. I took mine apart and one of the contacts was gone.
 
i wouldnt say it works great but it goes up and down. i have to help it at the top and rattles like none other when its down. i keep a piece of weather strip to jam in there when its down
 
I got my '84 K5 in '87 and the tailgate switch wasn't working. It's not hard to pull the inside cover off with the tailgate down, flip the safety switch by hand, then crank the window out using the dash switch. I always stick a trash can under the glass to hold it up while horizontal, it's just the right height. Then you can get to the switch.

The switch contacts were burned up, nothing left of them. I replaced the switch only to have the contacts burn up again several months later. Fool me once, shame on you, fool me twice..... There's just too much current on that motor for those cheap contacts in the switch.

I installed a pair of power relays inside the tailgate, connected the motor to the relay contacts, and connected another new replacement key switch contact to the relay coils. I think the relay contacts were rated for 30A DC. The dash panel switch still drives the motor directly, although I could have made it drive the relay coils as well.

That was over 20 years ago, haven't had to mess with it since. Oh yeah, I didn't trust the ground going to the tailgate through the hing either, could contribute to voltage drop forcing the motor to draw even more current through the switch contacts. So I added a dedicated ground wire from the frame to the tailgate as well.
 
BTW- That PIA tailgate is probably the main reason why I still have a 26 year old K5 instead of a Tahoe. I want the openess of an SUV cab to rear so no pickup but I want a pickup tailgate that swings down so long stuff can hang out on the bed. And I want a window in the gate so I don't have to drive down the highway with that glass flipped up in the air (or the whole gate) looking like a soccer dad when I have the gate up and something sitcking out the back. So if GM ever decides to design and market an SUV to someone other than the soccer clan, perhaps I'll buy a new one. Until then, it's K5 for me.
 
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Mine works awesome.....right after your done pulling the glass up with one hand, cranking up the regulator, & rebalancining the window on the regulator that is! Peice of junk! I'd like to get a soft top and install a pickup tailgate, so I'm not even going to bother fixing this one.

-John
 
Mine never worked and the tailgate was cracked on both sides too. I just took the whole top and tailgate off and threw them both away. Now its a permanent convertible
 
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