4.7l radiator drain plug - Dakota Durango Forum
4.7L/4.7L HO/4.7L Gen II Engines Questions regarding the 4.7L V8 engine

 
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post #1 of 7 Old 07-04-2010, 09:53 PM Thread Starter
KGAWDTSi
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4.7l radiator drain plug

So I just bought this truck (04 Dakota) about two weeks ago and was changing all my fluids along with doing a tune up as I do not know thet last time it was done. I located the radiator drain plug and noticed that the position of the knob was verticle. Previous vehicles I have owned you need to turn the know verticle to drain. Either way, the truck was not leaking coolant from the valve so I turned it a 1/4 turn so that the knob is now horizontal. Still nothing drains. I tried to turn the knob either way further with a pair of pliers but did not want to put too much pressure on it because I did not want to break it. It only turns 1/4 turn. Nothing more or nothing less and I cannot get any coolant to flow. I also thought that there may be some sedimant built up in the valve, so I pocked a screwdriver up there, with the valve in both directions, and still nothing drains. What position is the valve suppose to be in to drain? Does it have to turn more than a 1/4 turn? Also I had the radiator cap off just in case there was a suction causing no coolant to flow. Any suggestions? thanks

04 Dakota QC 4x4 4.7L 5 speed manual
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post #2 of 7 Old 07-04-2010, 09:57 PM
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I have no idea about the 4.7, but on my 5.9, you turn it 180 degrees for it to start draining.
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post #3 of 7 Old 07-05-2010, 12:52 AM
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You have to pull and turn it to drain. It's not just a simple petcock or ball valve.

Even if you don't want to change it right now, I'd drain a little and see if any shit comes out...that'll give you an idea if it's been maintained at all.
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post #4 of 7 Old 07-05-2010, 01:00 AM Thread Starter
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Thanks I will give that a try tomorrow. I know that it has not been maintained. The previous owner only flushed the system once and the truck has 93,000 miles

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Originally Posted by caulk04 View Post
You have to pull and turn it to drain. It's not just a simple petcock or ball valve.

Even if you don't want to change it right now, I'd drain a little and see if any shit comes out...that'll give you an idea if it's been maintained at all.

04 Dakota QC 4x4 4.7L 5 speed manual
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post #5 of 7 Old 07-05-2010, 07:29 PM
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Originally Posted by KGAWDTSi View Post
Thanks I will give that a try tomorrow. I know that it has not been maintained. The previous owner only flushed the system once and the truck has 93,000 miles
That's better than alot of vehicles on the road. Not that bad at all really. I've drain my system once or twice over the 6 years I've had it and flushed it once ~2 years ago. Coolant is still nice and clean.
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post #6 of 7 Old 07-05-2010, 11:55 PM Thread Starter
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Originally Posted by caulk04 View Post
That's better than alot of vehicles on the road. Not that bad at all really. I've drain my system once or twice over the 6 years I've had it and flushed it once ~2 years ago. Coolant is still nice and clean.
I just want to thank you again. I was able to change my coolant and all I needed to do was pull on teh drin plugs and turn some more. The coolant in there was actually not that bad but I feel better knowing that it is new

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post #7 of 7 Old 07-06-2010, 05:50 AM
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make sure you burp it
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