Time for head studs?
Thread Starter
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Laughing Gas
Joined: Jan 2012
Posts: 1,103
Likes: 1
From: Lakeland, TN
EGT would be good to watch
Boost should be regulated with the Tune
If it did overboost then the Turbo might be dirty or a Bad sensor basicaly would be no more of a concern than a Stock truck as far as problem developing but should be able to push more Boost psi with studs the Tune writer would know about that stuff and how much boost he can push threw it
I would look into a Fuel system upgrade for shure cuz the Tune will push more fuel and the OEM setup isnt the Best since its regulated before the Fuel rail in the Heads.
Its better if the Fuel Press is regulated After the Fuel rail in the Head and your injectors will last longer this way
Boost should be regulated with the Tune
If it did overboost then the Turbo might be dirty or a Bad sensor basicaly would be no more of a concern than a Stock truck as far as problem developing but should be able to push more Boost psi with studs the Tune writer would know about that stuff and how much boost he can push threw it
I would look into a Fuel system upgrade for shure cuz the Tune will push more fuel and the OEM setup isnt the Best since its regulated before the Fuel rail in the Heads.
Its better if the Fuel Press is regulated After the Fuel rail in the Head and your injectors will last longer this way
Laughing Gas
Joined: Jan 2010
Posts: 854
Likes: 17
From: Florida
Yes, it is. The white spots all over the driver side are also signs. The degas bottle top will allow puking if the pressure gets over 16psi. Often you see dry spillage right around the cap as well. If you take it into a shop, make sure they test some of these things before the pop the cab off. Headgaskets should not be diagnosed by pulling the heads (unlike the scam they did with me).
Thread Starter
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Laughing Gas
Joined: Jan 2012
Posts: 1,103
Likes: 1
From: Lakeland, TN
Yes, it is. The white spots all over the driver side are also signs. The degas bottle top will allow puking if the pressure gets over 16psi. Often you see dry spillage right around the cap as well. If you take it into a shop, make sure they test some of these things before the pop the cab off. Headgaskets should not be diagnosed by pulling the heads (unlike the scam they did with me).
Fleet Owner
Joined: Nov 2003
Posts: 27,881
Likes: 3,595
Well those are certainly good points to consider. I think I need to look more carefully at the degas bottle issue. I would think that if the heads were leaking I'd notice some other symptom than just loss of coolant. I guess the next question would be, what makes a coolant system over pressure and what do you do about it ?
Too full of a degas bottle
Weak antifreeze concentration and working the engine hard (high ECT's)
Overheating - high ECT's: clogged radiator, etc
ER cooler leak - solution: BPD EGR cooler or delete it
head gasket leaks - solution: new gaskets, inspect heads carefully, studs recommended
Thread Starter
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Laughing Gas
Joined: Jan 2012
Posts: 1,103
Likes: 1
From: Lakeland, TN
Primarily:
Too full of a degas bottle
Weak antifreeze concentration and working the engine hard (high ECT's)
Overheating - high ECT's: clogged radiator, etc
ER cooler leak - solution: BPD EGR cooler or delete it
head gasket leaks - solution: new gaskets, inspect heads carefully, studs recommended
Too full of a degas bottle
Weak antifreeze concentration and working the engine hard (high ECT's)
Overheating - high ECT's: clogged radiator, etc
ER cooler leak - solution: BPD EGR cooler or delete it
head gasket leaks - solution: new gaskets, inspect heads carefully, studs recommended
Fleet Owner
Joined: Nov 2003
Posts: 27,881
Likes: 3,595
By overheating, I mean coolant temps significantly in excess of 223 degrees - frequently.
You asked about overpressuring, but you could also have a weak cap, bad seal on the degas bottle where the cap seals against, leak in the degas bottle, etc.
Some "pseudo" EGR deletes can still leak - if you have a complete delete than it is a non-issue.
You asked about overpressuring, but you could also have a weak cap, bad seal on the degas bottle where the cap seals against, leak in the degas bottle, etc.
Some "pseudo" EGR deletes can still leak - if you have a complete delete than it is a non-issue.
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Laughing Gas
Joined: Jan 2010
Posts: 854
Likes: 17
From: Florida
Remember the "min" line on the degas bottle is the new "max" Also a new radiator degas bottle cap 9c3z-8101-a might be a good thing to try - it is $6 from Tousley Ford. That would be to see if the cap is the problem (it is not that likely but it is an easy and cheap thing to try).
Thread Starter
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Laughing Gas
Joined: Jan 2012
Posts: 1,103
Likes: 1
From: Lakeland, TN
Remember the "min" line on the degas bottle is the new "max" Also a new radiator degas bottle cap 9c3z-8101-a might be a good thing to try - it is $6 from Tousley Ford. That would be to see if the cap is the problem (it is not that likely but it is an easy and cheap thing to try).
Laughing Gas
Joined: Jan 2010
Posts: 854
Likes: 17
From: Florida
Other possible sx's of the head gasket problem could be white smoke which should be sweet smelling, steam from the exhaust. Usually I think it is just puking, esp under load and exhuast gases in the coolant - you might hear a hiss from the degas bottle. Try keeping it at the min line or lower with a new cap and see what happens after a week. So long as your temps aren't too high I don't think you'll screw anything up waiting a bit. You know that exhaust gas tester might be $50 for about $4k peace of mind.
Thread Starter
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Laughing Gas
Joined: Jan 2012
Posts: 1,103
Likes: 1
From: Lakeland, TN
Other possible sx's of the head gasket problem could be white smoke which should be sweet smelling, steam from the exhaust. Usually I think it is just puking, esp under load and exhuast gases in the coolant - you might hear a hiss from the degas bottle. Try keeping it at the min line or lower with a new cap and see what happens after a week. So long as your temps aren't too high I don't think you'll screw anything up waiting a bit. You know that exhaust gas tester might be $50 for about $4k peace of mind.
Laughing Gas
Joined: Jan 2010
Posts: 854
Likes: 17
From: Florida
yeah, one of the reviews on amazon talks about how he was ready to trash his old car cause he thought the head gasket has gone, but when the exhaust gas test came back negative he felt a lot better the problem.
Thread Starter
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Laughing Gas
Joined: Jan 2012
Posts: 1,103
Likes: 1
From: Lakeland, TN
New evidence
Not sure if any of this is significant: yesterday, engine just turned off, coolant at min in degas bottle. Today, engine running, coolant at 1/2 to 3/4" below min. Opened the degas bottle top, BIG whoosh of pressure release, and the coolant level immediately returned to min. Normal? Also, there is some crusting on and around the degas cap, but no evidence of runoff between the bottle and the manifold. That makes me think that the coolant is not going from the cap to the manifold. The intake is right below the cap and is clean as a whistle. Thoughts?
Thread Starter
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Laughing Gas
Joined: Jan 2012
Posts: 1,103
Likes: 1
From: Lakeland, TN
Just bought the tester. If the test is negative now, great, but this topic will come up again. Since I'll already have the tester, I can retest then.