head gasket?
Posting Guru
Joined: Oct 2005
Posts: 2,282
Likes: 4
From: Oregon
Coolant in the oil turns it a nasty dirty cream color, and the consistency of melted ice cream. If yours is still diesel black, you're doing alright.
Fill your radiator, pull the cap off and run the engine. Look in there and see what the coolant is doing (if it isn't blasting out of the rad filler like mine did from the blown gasket...) Look for bubbles.
EDIT: Read post #40 by Dave Sponaugle in this thread:
https://www.ford-trucks.com/forums/9...itation-3.html
Fill your radiator, pull the cap off and run the engine. Look in there and see what the coolant is doing (if it isn't blasting out of the rad filler like mine did from the blown gasket...) Look for bubbles.
EDIT: Read post #40 by Dave Sponaugle in this thread:
https://www.ford-trucks.com/forums/9...itation-3.html
Posting Guru
Joined: Oct 2005
Posts: 2,282
Likes: 4
From: Oregon
Oil level is where it should be? More info the better.
Post back when you get a chance to test what everyone's recommended, we'll be able to help more when we all have a better idea what's going on in there.
Post back when you get a chance to test what everyone's recommended, we'll be able to help more when we all have a better idea what's going on in there.
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Postmaster
Joined: Nov 2008
Posts: 2,851
Likes: 3
From: Buckley, WA
Oil level was not terrible, yesterday was the first time it leaked, about the size of 4 quarters next to eachother. When it was running didn't notice any drips, only when it was off
Posting Guru
Joined: Oct 2005
Posts: 2,282
Likes: 4
From: Oregon
Head gasket as far as oil goes would be my bet, test for the rest. Hopefully gasket, not cavitation.
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Postmaster
Joined: Nov 2008
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Likes: 3
From: Buckley, WA
Does the cold weather have anything to do with it? It was 9 degrees out last night, and also I usually run thicker oil. 10w40 with the lucas oil additive now just the 10w40, that have anything to do?
Postmaster
Joined: Mar 2008
Posts: 3,255
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From: Sweet Home, OR
As far as head studs go; the 7.3L has much larger head bolts than the 6.9L.
I'm pretty sure head studs for a 7.3L are a lot more expensive than for the 6.9L.
Is your 10-40 oil rated for diesel engines? Won't make any difference as far as leaks go but diesels use specific oils, mostly 15-40. I'm not sure if the Lucas addative takes care of it or not. As stated 10-30 diesel oil is OK for extreme cold.
Your oil "pressure" gauge in the dash is basically an idiot light. If you have 7 PSI it shows pressure, not a specific high or low state. You may have an aftermarket gauge for all I know however.
I'm pretty sure head studs for a 7.3L are a lot more expensive than for the 6.9L.
Is your 10-40 oil rated for diesel engines? Won't make any difference as far as leaks go but diesels use specific oils, mostly 15-40. I'm not sure if the Lucas addative takes care of it or not. As stated 10-30 diesel oil is OK for extreme cold.
Your oil "pressure" gauge in the dash is basically an idiot light. If you have 7 PSI it shows pressure, not a specific high or low state. You may have an aftermarket gauge for all I know however.
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Postmaster
Joined: Nov 2008
Posts: 2,851
Likes: 3
From: Buckley, WA
Filled up the coolant, ran it and it ran fine no smoke. Still leaking oil and it appears there is a small amount of oil in the rad. The top layer is shinny like oil on water. No bubbles in rad, and nothing gushing out when it was open. The oil is still "diesel black"