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06 radiator drain valve leaks

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Old Aug 21, 2015 | 09:53 PM
  #1  
Jeff in TD's Avatar
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From: Oregon
06 radiator drain valve leaks

So I flushed the coolant, and now the drain valve drips. It was stiff, but seems to be in the fully closed position. I don't want to reef on it and break
something. This is the 2nd coolant change and it sealed fine the first time.

I saw a few past threads but nothing described how to remove or replace the valve. It seems to hit a stop when you open it, and I'm hesitant to try to force it past that or try to yank it out.

Any tips on how to fix this?
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Old Aug 22, 2015 | 10:28 AM
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From: Sunny Southern California Land of Fruits and Nuts
Dealer sells replacement drain valve, usually the o-ring splits. Remove by turning counter clockwise and pulling at same time. Put a little silicone paste on new drain valve when installing.
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Old Aug 22, 2015 | 11:20 AM
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From: Oregon
Thanks. I pulled on it a bit and it didn't want to move. I figured I just needed to wiggle it and be a bit more aggressive as it felt gritty when it turned, but I wanted to make sure before I break something and have to replace the radiator.

Doesn't seem to be too sturdy or well designed.
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Old Aug 22, 2015 | 11:32 AM
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From: Oregon
Local parts store has one that only listed assorted Chrysler gas engines, but it cross references to Mopar 4644269 and seems to be the right one.
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Old Aug 22, 2015 | 12:10 PM
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From: new braunfels, tx 78130
It opens 1/2 turn counter clockwise, then pull straight out, then u can replace the "O" ring, installation is in reverse, good luck;;
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Old Aug 22, 2015 | 08:08 PM
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From: San Diego
NAPA sells a replacement or just the O ring.
I recorded the part # but naturally can't remember where I recorded it.
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Old Aug 22, 2015 | 09:28 PM
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Thanks for the replies. I got a replacement at my favorite independent parts store, and actually got it in without taking too much of a bath. Lubed it with dielectric grease (figured it doesn't attack rubber or plastic) and it seems to be sealed.

Had to pry a bit to get the old one to come out, but found it to be in good shape with a bad O ring. Next time I get parts I'll get a new O ring so I'll have a spare.

With new coolant, both axles, brake fluid flush, transmission and transfer case done, ye olde truck should be good for a while.
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Old Aug 23, 2015 | 11:54 PM
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From: new braunfels, tx 78130
The problem most people have is not knowing it only turns 1/2 turn and then pull out, most people think it unscrews so they get on it with pliers, I was one of them until I read the instructions, by accident as my neighbor was flushing his sons, and couldn't get it out, that is when I read the instructions, so 1/2 turn and pull.''
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Old Aug 24, 2015 | 08:09 AM
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From: Oregon
Yeah I could see that happening. Mine was pretty stuck and gritty when I got it to turn, but you could still feel a distinct mechanical stop at 1/2 turn.

Overall, though, to me it seems like a pretty flimsy design.
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