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Head Gasket?

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Old 11-04-2012, 11:13 PM
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Originally Posted by Bennyv83
The liquid coming out of the tailpipe is normal. That's water from combustion.
If you're losing coolant rapidly, then there's a leak or a bad head gasket.
I've had my truck 3 years and the coolant level hasn't changed ever, so I suspect you have something wrong.
You could by a cooling system pressurizing tool and see what kind of leak down you have. This tool will make it easier to spot a leak since you won't be driving.
Agreed. I would highly recommend using a coolant pressure tool, a quality one at that, to check to see if you have leaks. Also you can use a UV dye as well.
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Old 11-05-2012, 10:19 AM
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Originally Posted by 2008f1504x4
Combustion does not make water... The heat from the combustion heating up the metal causes it to sweat which is the water that comes from the tail pipe if combustion made water liquid would always come out
Combustion doesn't make water?
The combustion of any hydrocarbon makes water. Look it up!
I'm a gas technician, I deal with combustion of hydrocarbons on a daily basis.
Some of the oxygen combines with the carbon to form CO2 and CO. The rest combines with the hydrogen in the fuel to create.... You guessed it, H2O!!
Old 11-05-2012, 10:23 AM
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Originally Posted by Bennyv83
Combustion doesn't make water?
The combustion of any hydrocarbon makes water. Look it up!
I'm a gas technician, I deal with combustion of hydrocarbons on a daily basis.
Some of the oxygen combines with the carbon to form CO2 and CO. The rest combines with the hydrogen in the fuel to create.... You guessed it, H2O!!
Well said
Old 11-05-2012, 11:50 AM
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Why not pull the oil dip stick and look at whats in the oil ???
Old 11-05-2012, 01:12 PM
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Then why doesnt the exhaust always have water coming out??
Old 11-05-2012, 01:28 PM
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Originally Posted by 2008f1504x4
Then why doesnt the exhaust always have water coming out??
It does, however once the exhaust is hot (above 212 F) the water comes out in the form of a vapor and you don't see it. When the vehicle is cold the water condenses in the exhaust and drips out. You can see the steam when the air temp is cold even after vehicle warms up. Ph.D. chemist here, by the way.
Old 11-05-2012, 02:33 PM
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Im not calling anyone a liar by anymeans so i dont mean to step on anyones feet because i stated what i thought im apparenty wrong
Old 11-05-2012, 07:53 PM
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White or yellow in oil is caused by a blown headgasket or cracked block or head, change your oil you will find it is contaminated with anti freeze or fuel. Also do a leakdown test the rings could also be the problem.
Old 11-05-2012, 08:10 PM
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How do i tell if theres antifreeze in the oil i just changed it?
Old 11-06-2012, 04:19 AM
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Originally Posted by mgbk1200rs
White or yellow in oil is caused by a blown headgasket or cracked block or head, change your oil you will find it is contaminated with anti freeze or fuel. Also do a leakdown test the rings could also be the problem.
He didn't say he had white or yellow in the oil, he said he had it on the oil cap. And yes, it is common. I had some on my 98 4.6l but never had any in the oil. I drove 3 miles to work. The truck would still be cold when I got to work. OP did you change the oil yourself? If you did, you would have noticed it. It would be separating and wouldn't look like just dirty oil. Unless you start having engine problems, I wouldn't worry about it. If you still can't sleep, maybe change the oil in a month or so to check for antifreeze or fuel.


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