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Unread 01-10-2011   #1 (permalink)
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Default Coolant drain plug location on engine block

Replacing my thermostat, so I removed the drain plug from the radiator and the coolant came out a puke brownish yellow, so I figure its probably better to drain the whole system then top it off . I know I'm gonna be kickin myself in the head after this one, they're probably right in front of me, but where are the coolant drain plugs on the engine block? Theres one on each side, correct? If anyone could provide a photo showing where they are, that'd be great, thanks
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Unread 01-10-2011   #2 (permalink)
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Off the top of my head I don't remember seeing any on the block.
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Unread 01-10-2011   #3 (permalink)
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Wow, really? Because in my haynes manual and Ford shop manual they both state to remove the drain plugs from the engine block. If they put it in the Ford shop manual it has to be true.
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Unread 01-10-2011   #4 (permalink)
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should be one on each side, just above pan rail. may be close to or behind motor mount.
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Unread 01-10-2011   #5 (permalink)
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Alright thanks, I will check for them tomorrow and let you know if I find them. I noticed you have an sn95, I actually have a 1988 5.0. I imagine the coolant drain plug locations on the motors from both those years are the same. However if anyone reading this knows otherwise please let me know.
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Unread 01-10-2011   #6 (permalink)
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As far as I know there is no coolant drain plugs on the 5.0 engine block. There is Freeze plugs on both sides of the block. You can see 3 of them in the picture. I don't even think you can take them out with the engine being in your car. You do not want to take the feeze plugs out.

You should of got 90 percent of the coolant out since you drained your radiator from the plug on the bottom of the radiator. Just replace the thermostat, fill the radiator back up. Sure there will still probably be a little coolant in the motor and heater core but not much.
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Unread 01-12-2011   #7 (permalink)
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There is no block drain on a 5.0, just casting plugs as mentioned earlier. Dont pull them out, youll regret it. If you want that old coolant out so bad, disconnect the lower rad hose and the thermostat housing. Then flush it with a garden hose until its clear. Refill with distilled water and antifreeze.
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Unread 01-12-2011   #8 (permalink)
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Quote:
Originally Posted by Stangboy5666 View Post
Refill with distilled water and antifreeze.
Good advice, just mix at 50/50.

If you buy the premixed antifreeze, use it straight out of the bottle and do not dilute with additional water.
It is cheaper to buy the full strength antifreeze and mix it yourself. That's what I do
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Unread 01-12-2011   #9 (permalink)
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yep i checked today, no drain plugs. i read that in my haynes manual as well, you just watch for the water to come out of the drain **** right? i think I'm going to go with that option. Thanks for all your help guys
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Unread 01-12-2011   #10 (permalink)
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haha can't believe it censored d r a i n c o c k
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