Coolant puking intake elbow
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5th Wheeling
Joined: May 2021
Posts: 25
Likes: 2
From: Northern California Mtn.
Coolant puking intake elbow
I need some help. Have a 2004 f250 6.0 that keeps puking coolant on the underside of hood only under load. It is definitely not a cap issue. it seems to be coming from the gooseneck on the top of the intake. If I have a blown head gasket. so be it but why in the hell would it puke there and not out the degas cap. I have a coolant pressure sensor I intend to install. But if I am bleeding through the head gasket and pressurizing the coolant system. Doesn't common sense say the cap would purge before the intake hose/ goosneck? I did take the intake hose off to work on the steering box and it is tight when I reinstalled it. When I took the intake hose off I think I did see some residual coolant but at the time I didn't even know what that hose was, so I didn't think anything of it. Also I have never seen white smoke out the tailpipe. I have read and watched a 100 vids regarding this engine and egr / head coolant problems and I can't make heads or tails of it. I also puled the egr and clean and looked down inside and didn't see any coolant residue. When I did this I did not have it on a hill pointing down so maybe the coolant was hidding in the back...lol
Thanks for help
Thanks for help
Thread Starter
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5th Wheeling
Joined: May 2021
Posts: 25
Likes: 2
From: Northern California Mtn.
All kidding aside is it the o-ring between the water pump and intake (I see this connection on a diagram)? 1st diesel and haven't gone that deep in the engine yet.
If so that would make total sense!
Logistics Pro
Joined: Jul 2014
Posts: 4,673
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From: Houston, Texas
Jack refers to a round rubber doughnut-like gasket that seals the intake at the front of the engine. You have to pull the intake to replace it. But, it and the heater hose he refers to are right at in line with the intake elbow and the underside of your hood. Maybe they're leaking and the fan blows it on the hood?
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5th Wheeling
Joined: May 2021
Posts: 25
Likes: 2
From: Northern California Mtn.
Jack refers to a round rubber doughnut-like gasket that seals the intake at the front of the engine. You have to pull the intake to replace it. But, it and the heater hose he refers to are right at in line with the intake elbow and the underside of your hood. Maybe they're leaking and the fan blows it on the hood?
I wasn't even thinking about the fan and the fact that it could spray coolant all over the place.. I could even have a leak in the radiator. It only seems to happens under a large load. Cleaned the hood and engine last week. Towed a large tractor Saturday and it sprayed again. I was watching my coolant temp and it got to 220. EOT was 228. This was up a good grade.
Here is some pics.
Logistics Pro
Joined: Jul 2014
Posts: 4,673
Likes: 531
From: Houston, Texas
Oh my. You do have a leak. But it doesn't appear to have affected your engine yet - those numbers aren't bad towing up a steep grade, and it doesn't appear to be blowing out your degas cap. It seems to be everywhere, even above and in front of the fan shroud. I'm guessing the top radiator hose or radiator top tank, but there's so much everywhere that Jack is prolly right. Maybe from somewhere with more pressure.
Tuned
Joined: Jan 2019
Posts: 329
Likes: 79
From: Southern California
Looking at the splatter on the hood, have you checked the small hose that connects to right side of the degas bottle. Could have a split/hole in it that only opens under heavy load.
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Hotshot
Joined: Dec 2014
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From: Jersey Shore
... Have a 2004 f250 6.0 that keeps puking coolant on the underside of the hood only under load. It is definitely not a cap issue. it seems to be coming from the gooseneck on the top of the intake. If I have a blown head gasket. so be it but why in the hell would it puke there and not out the degas cap. I have a coolant pressure sensor I intend to install. But if I am bleeding through the head gasket and pressurizing the coolant system. Doesn't common sense say the cap would purge before the intake hose/ gooseneck? ....
Thanks for the help
Thanks for the help
Thanks
I wasn't even thinking about the fan and the fact that it could spray coolant all over the place.. I could even have a leak in the radiator. It only seems to happen under a large load. Cleaned the hood and engine last week. Towed a large tractor Saturday and it sprayed again. I was watching my coolant temp and it got to 220. EOT was 228. This was up a good grade.
I wasn't even thinking about the fan and the fact that it could spray coolant all over the place.. I could even have a leak in the radiator. It only seems to happen under a large load. Cleaned the hood and engine last week. Towed a large tractor Saturday and it sprayed again. I was watching my coolant temp and it got to 220. EOT was 228. This was up a good grade.
Hotshot
Joined: Dec 2014
Posts: 17,828
Likes: 3,113
From: Jersey Shore
Another check would be to have a 3/8" line teed into one of the Degas small lines and when the engine is at running temp (but not running) add in compressed air regulated from 0 to 16psi (sneaking up) and look for the leak. With that setup, you could also add a pressure gauge and see what pressure it does occur under load.
Thread Starter
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5th Wheeling
Joined: May 2021
Posts: 25
Likes: 2
From: Northern California Mtn.
Problem found
Thanks for all your suggestions.!
I pulled the fan shroud off and ran the truck up a heavy grade. Pulled over at the top and popped the hood. Found the rad was pissing at the operator side. Pretty stoked that it wasn't the damn donut.
Now he big question. Do I go aftermarket or stock? Let me know you thoughts.
I pulled the fan shroud off and ran the truck up a heavy grade. Pulled over at the top and popped the hood. Found the rad was pissing at the operator side. Pretty stoked that it wasn't the damn donut.
Now he big question. Do I go aftermarket or stock? Let me know you thoughts.
Logistics Pro
Joined: Jul 2014
Posts: 4,673
Likes: 531
From: Houston, Texas
Well, heck, I guessed right, but I didn't know the radiator would get that much pressure. When my started leaking, it just dripped out. Maybe this one was dripping a while before you noticed. Replacement? I can tell you not to buy one online because it's cheaper. It'll never show up undamaged. I gave up at 3. Makes me worry about any other one online. I'd prolly use a national parts house - they have upgraded parts in their online catalogues, and might be able to get you a BPD or Mishi, and let them worry about shipping. Advance Auto almost always has a 15% coupon online.
Thread Starter
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5th Wheeling
Joined: May 2021
Posts: 25
Likes: 2
From: Northern California Mtn.
Well, heck, I guessed right, but I didn't know the radiator would get that much pressure. When my started leaking, it just dripped out. Maybe this one was dripping a while before you noticed. Replacement? I can tell you not to buy one online because it's cheaper. It'll never show up undamaged. I gave up at 3. Makes me worry about any other one online. I'd prolly use a national parts house - they have upgraded parts in their online catalogues, and might be able to get you a BPD or Mishi, and let them worry about shipping. Advance Auto almost always has a 15% coupon online.