Antifreeze leak
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Senior User
Joined: Aug 2011
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From: Waxhaw,NC
Antifreeze leak
Noticed this leak today a few days after parking the Ex (V10) -- not a daily driver.
Crawled under the Ex and checked under the hood but I could not find an obvious sign of where the leak is coming from.
I checked the coolant plastic reservoir and its on MIN -- I believe that where it should be when the engine is cold. I noticed that these trucks do not have a cap directly on the radiator. That plastic reservoir, is that where I would top off the coolant?
Is there a spot on these engines where it would commonly leak?
Should I try to put some dye on the coolant and/or possibly pressure test it?
Your advise is greatly appreciated. Thank you.
Crawled under the Ex and checked under the hood but I could not find an obvious sign of where the leak is coming from.
I checked the coolant plastic reservoir and its on MIN -- I believe that where it should be when the engine is cold. I noticed that these trucks do not have a cap directly on the radiator. That plastic reservoir, is that where I would top off the coolant?
Is there a spot on these engines where it would commonly leak?
Should I try to put some dye on the coolant and/or possibly pressure test it?
Your advise is greatly appreciated. Thank you.
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Senior User
Joined: Aug 2011
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From: Waxhaw,NC
However I would like to know if these is a common place for a leak to occur to hopefully make it easier for me to locate it. Snow and cold weather just make everything difficult.
I was kinda curious too as to why the collant drips are scattered. I would've thought it would drip on one spot. Not certain if caused by the wind -- was pretty windy a few days ago.
Any suggestion is greatly appreciated.
Fleet Mechanic
Joined: Nov 2007
Posts: 1,993
Likes: 16
From: Colorado
There is not a common leak point, off the top of my head.
Here is a thread from the V10 part of the forum, which might help you out.https://www.ford-trucks.com/forums/1...lant-leak.html
Here is a thread from the V10 part of the forum, which might help you out.https://www.ford-trucks.com/forums/1...lant-leak.html
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Senior User
Joined: Aug 2011
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From: Waxhaw,NC
I have not had the chance to look for the leak, but if its the heater tube under the intake manifold, I'm seriously considering this repair below. Heck of a lot easier and will take a fraction of the time.
Any thoughts on this repair?
Any thoughts on this repair?
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Senior User
Joined: Aug 2011
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From: Waxhaw,NC
I apologize but I'm not certain what you mean by this.
Is this a safe alternative? Anything I should watch out for?
Is this a safe alternative? Anything I should watch out for?
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Post Fiend
Joined: Mar 2009
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From: Mt. Shasta California
It beats taking the manifold off and if it ever leaked under it you could do it the hard way but I doubt if it ever will leak under there...........slim chance.
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New User
Joined: Mar 2013
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dont know if this helps but our old 2000 4wd X had a antifreeze leak we looked over and finally found otu we had a pinhole leak on the coolant jug. not saying that is where yours is leaking but that is where ours was. hope this helps
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Senior User
Joined: Aug 2011
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From: Waxhaw,NC
When I saw the leak under the truck, the coolant was dripping off the exhaust Y pipe. From what I've read so far, I think 1 or 2 guys from this forum had the same leak and it turned to be that heater tube under the intake.
The weather is going to be a little warmer towards the end of the week so I should be able to dig deeper into this issue.
The weather is going to be a little warmer towards the end of the week so I should be able to dig deeper into this issue.
Junior User
Joined: Aug 2012
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I have an 02' 7.3 Ex, had a similar problem on my rig, took it to my buddy's shop, he replaced the thermostat, water pump, & lower radiator hose. Good to go, that was a year ago. I've cranked the A/C during the summer, not one drop of coolant leaking anymore. Hope this helps. Let's keep our Ex's Trucking along!
Post Fiend
Joined: Mar 2009
Posts: 11,798
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From: Mt. Shasta California
That lower hose has 2 hoses that go back to the oil filter on the driver side. I use a hand mirror to find things like that, I have a 3" and a 6" one with handles. People use them to look at the back of their hair.
Posting Guru
Joined: May 2012
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From: Colorado
I will replaced it next time I do a full flush.
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Senior User
Joined: Aug 2011
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From: Waxhaw,NC
So I drove the Ex to work yesterday (its been a couple of weeks since I drove it) and I had the heat blasting the whole way to see if I see any coolant leak by the time I get to work. I saw no coolant drip or smell of coolant anywhere when I pulled into my parking spot. When I got home, left the Ex running on the driveway, had the heat blasting, crawled under the truck and did not see any leaks at all. Popped the hood and saw no signs of any leak anyhwere.
So now i'm confused as to where that leak I saw a couple of weeks ago came from? Unless I'm just not seeing the source. Any other thoughts?
I will continue to monitor the Ex.
So now i'm confused as to where that leak I saw a couple of weeks ago came from? Unless I'm just not seeing the source. Any other thoughts?
I will continue to monitor the Ex.