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Radiator drain plug clogged?

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  #1  
Old 12-05-2008, 12:17 PM
SoCal_Ram SoCal_Ram is offline
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Default Radiator drain plug clogged?

I started to flush my radiator until I realized that my drain **** was plugged. I pushed a small allen wrench up the drain to break the blockage with no luck. I tried running the truck with the drain open and nothing happened. I would have had no idea that there was some blockage if not for me trying to flush the system (op temp is fine, no coolant in the oil, etc). The Dodge Service Manual mentions using a pressured system which I'm sure only shops have.

Does anyone have any ideas? Like maybe taking a small air compressor and trying to push some air up the drain?

I didn't take off the Block Drain Plug yet...should I do that?
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Old 12-05-2008, 02:19 PM
pcfixerpro pcfixerpro is offline
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How far did you unscrew the drain? It took maybe two turns before stuff came out. Keep unscrewing it.
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Old 12-05-2008, 02:30 PM
ophidia ophidia is offline
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Yeah, I just did that last night. I turned it and was like "What the hell, nothing's coming out!" I tried to turn it further and it turned more, and popped out. When it popped out then the rad. started draining.
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Old 12-05-2008, 03:04 PM
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ya my drain doesn't work, so i just slowly drop the lower rad hose,, let me tell you it can get messy fast,, take your time and have the biggest bucket under your truck you can get.... that's only if you can't get the drain open.
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Old 12-05-2008, 03:19 PM
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These trucks have a drain plug?!? I did mine by dropping the radiator hose...where is this plug located? Bucket...who needs a bucket? That's what the yard is for...crazy hippies
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Old 12-05-2008, 03:26 PM
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Yeah, I thought I was doing pretty well with my little tube going into a gas can to get all of the fluid. I even jacked the back of the truck up. When I took the hoses off there was still plenty of coolant to go all over the damn place. It's like 17* here now so I can't just hose it into the floor drain-- I guess I have to keep the dogs out of the garage until it warms up a little :P.
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Old 12-05-2008, 04:08 PM
SoCal_Ram SoCal_Ram is offline
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Thanks for the replies. I'll try to turn it until it pops out!

Does everyone open the engine block plugs as well. The one on the left side will be more difficult to get to.
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Old 12-05-2008, 04:17 PM
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If you want to get it all you have to. I didn't because I was just replacing the radiator, but the left one does look like a bitch to get to.
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Old 12-05-2008, 04:27 PM
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We have drainage! Thanks again.
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Old 12-05-2008, 07:58 PM
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Where is the radiator plug?
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Old 12-05-2008, 08:03 PM
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bottom drivers side of rad
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Old 12-05-2008, 09:44 PM
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Look straight down from the upper radiator hose-- you'll see a plastic tab sticking out down at the bottom. That's the valve. The nipple you connect the tubing to is on the bottom of that. I think what I used was 3/8" ID tubing but I'm not 100% on that.
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Old 12-06-2008, 12:06 AM
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the drain plug works kind of weird. you unscrew it a half round or so, and then pull out about 3/4 inch.
the block drain plugs are on each side of the engine, tucked in behind the motor mounts. be careful with them, they'll round off easy. mine wanted to round off, so i clamped a good pair of vice grips on them, then put a short pipe over the end for more leverage. that worked. when re-installing, use some rtv or teflon and do not overtighten. snug is good enough.
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Old 12-08-2008, 06:06 PM
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The radiator drain is on the bottom left side. The engine block plugs are under the exhaust headers.
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Old 02-02-2011, 09:31 PM
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Default same problem

Well I'll be darned...I had the same problem it would not drain that is how i came to this thread....I will try to pull it out tomorrow.
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Old 02-02-2011, 09:37 PM
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Just pull the lower hose with the engine running and the radiator cap off. Flush it out by: reattaching hose, filling radiator, wait for thermostat to open, pull lower hose, and repeat.
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Old 02-02-2011, 10:44 PM
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our motors have block drain valves? never knew that. also never looked. lol i just remove lower hose, drain rad, flush with water hose, attach lower hose & fill rad, start truck for 10 mins, drain again then top off 50/50 with anti-freeze and water
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Old 02-02-2011, 11:16 PM
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Quote:
Originally Posted by 99dodge318 View Post
our motors have block drain valves? never knew that. also never looked. lol i just remove lower hose, drain rad, flush with water hose, attach lower hose & fill rad, start truck for 10 mins, drain again then top off 50/50 with anti-freeze and water
Not valves... but, 'plugs' you can remove at the bottom of the water jackets on each side of the block. Well, at least, according to popular theory you can remove them.... in actual practice, not so easy......
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Old 02-03-2011, 01:43 PM
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I'm glad I read this! I figured mine was clogged. I twisted it and it stopped at about a half turn. I was pretty sure it would have broken if I turned harded. I didn't think to give it a pull. And... drain plugs on the block? I didn't know that either.

You guys are teaching me gobs of stuff about this truck. You are saving me lots of $$$. (And... No, I'm not sending you your cut of my savings!)
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Old 09-28-2011, 05:39 PM
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This helped getting my drain plug out but now I can't get it back in. I am pushing/screwing in so hard I am worried I am going to break the plastic plug. I also even looking at the service manual can't find the drain plugs on the block =(
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Old 09-28-2011, 05:39 PM
 
 
 
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1999, 2007, 59l, 99, caliber, coolant, cooling, dakota, dodge, drain, draining, flush, location, magnum, plug, radiator, system

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