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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 03-11-2008
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freeze out plugs

it looks like i got a freeze out plug leaking on my block, is that something i can just change with a new one? do i need a special tool or just rip the old one out and tap in a new one?
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Old 03-11-2008
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Freeze plugs are press fit into a smooth boore. If the bore is iron (engine block) then you shouldn't have a problem. If it's pressed into an aluminum bore then you just might.

I'm sure there are freezplug repair kits out there. I'd check with a local NAPA.

Rich
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Old 03-11-2008
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Quote:
Originally Posted by wydopnthrtl View Post
Freeze plugs are press fit into a smooth boore. If the bore is iron (engine block) then you shouldn't have a problem. If it's pressed into an aluminum bore then you just might.

I'm sure there are freezplug repair kits out there. I'd check with a local NAPA.

Rich
thanks man, it looks like iron, its a 94 4.0 engine and its a freeze out plug in the block. luckily i got a body lift and i can get to it no problem thru the fender well.
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Old 03-11-2008
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ya that motor is iron
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Old 03-11-2008
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ya that motor is iron
thanks! us rednecks gotta stick together lol
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Old 03-11-2008
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I believe that you can get rubber replacments that expand on. Depending on which one is leaking I was going to suggest putting in a block heater, but you live down in the tropics where AC is more important.
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Old 03-12-2008
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is a freeze out plug something i can go to pep boys and give them the model and all and get or do i just buy them by size?
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Old 03-12-2008
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I'd not go with pep-boys. I'd go to a more hard core engine repair type of shop. Just depends on where you are I guess. In my town the NAPA and car quest both have machine shops and can give me the best parts along with solid advice on how to do it.

Rich
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Old 03-12-2008
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Originally Posted by wydopnthrtl View Post
I'd not go with pep-boys. I'd go to a more hard core engine repair type of shop. Just depends on where you are I guess. In my town the NAPA and car quest both have machine shops and can give me the best parts along with solid advice on how to do it.

Rich
i have a napa by me but in my area napa has 17 year old kids working there that never even heard of a modulator valve for my tranny, it horrible. i seen some online so i am gonna go to a few places this weekend, its not leaking bad but i dont wanna wait till it rust completely thru.
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Old 03-12-2008
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If it's rust causing the core plug to leak , you may want to consider replacing all of them at the same time. Since you have to drain the coolant anyway , and flush the system while you're at it , why take the chance that another one might start leaking in a month or two and have to repeat the process ?
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Old 03-13-2008
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Originally Posted by OTRtech View Post
If it's rust causing the core plug to leak , you may want to consider replacing all of them at the same time. Since you have to drain the coolant anyway , and flush the system while you're at it , why take the chance that another one might start leaking in a month or two and have to repeat the process ?
i know that would be the RIGHT way to do it, but i can only get to maybe three of them without pulling the engine, so i am gonna take a chance and replace what i can reach and wait it out and see how long it takes for the rest of them to go, the engine still runs perfect and i dont wanna pull it until its necessary.
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Old 03-13-2008
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it won't be helpful to flush the coolant system because unless you have a machine you will only get out around 2/3 of your coolant. You might want to check out a ford dealer near you instead of NAPA because it's best to get what was originally put in.
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Old 03-13-2008
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it won't be helpful to flush the coolant system because unless you have a machine you will only get out around 2/3 of your coolant. You might want to check out a ford dealer near you instead of NAPA because it's best to get what was originally put in.
yea thats what i was worried about, im gonna call the dealer this morning and see what they got, i get my anti freeze for free at work so i am just gonna change it like three times in a weeks time to get all fresh in there lol.
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