Question about Cars & Trucks
I got a 350 vortex an I put new head gasket on it never ran hot on me but now it's cold outside an steam is comeing out my pipes it's not white smoke it's white steam an my oil is good am my water is good they not mix together so every thing is good but just to be on the safe side I won't to know why is steam come out my pipes. The motor is good an hot but steam is still comeing out so what the problem...
White smoke comes from coolant burn off in the oil due to a leaking or blown head gasket, cracked head etc Severe overheating of the engine, improper tightening of the cylinder head(s) during an engine overhaul, or some other type of repairs that required the head to be removed and also defects in manufacturing of the gasket or the engine or tech that scratched or cut the surface of a replacement head gasket with either a tool or the cylinder head during the install process.. sometimes it will never cause an issue but it can... Improper cylinder head or engine block servicing techniques cause failure of the gasket(s) and usually caused by improper cleaning of the gasket surface of the engine block and/or the gasket surface of the head.
Are you 100% sure it's steam? If only a small amount of water got in your oil it should burn off. I'm sure you know daily condensation burns off quickly as well. If the exhaust billows white smoke for a few seconds when first starting the engine after it has been sitting for a while, such as overnight then is seeping in somewhere. If it continues it time for a ring job.
How does it smell? If oil it will smell burnt or dirty, poorly seated rings can allow a small amount of oil to bypass an burn white. Same w/valves, worn valve seals allow engine oil to seep from a car's valve-train directly into a car's engine cylinders, where the oil gets burned also white smoke. One possibility if oil PVC valve and breather. Clean them both.
There is a slight chance of it being tranny fluid and its normally drawn into an engine through a vacuum line via a defective transmission modulator valve or some other defective part. If a lot of tranny fluid it is very apparent and billows out so bad that you can't see anything behind you.
If it exhaust smells more sweet, then yes it's coolant.
Do you have an air compressor? Remove plugs one by one. blowing air into cylinder watching radiator for bubbles. I'd start at rear and work forward. I'd bet damaged gasket.
Posted on Nov 27, 2013
Hi,this should be normal,with most older cars you see this when tempricher drops,let the car run for about 30minits keeping an eye on the water level and tepricher,should cleer,if tempricher gose up or lose of water then it could be water leaking into the pistion bores or head cracked,hopfuly it will cleer,good luck.
Posted on Nov 27, 2013
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Posted on Jan 02, 2017
You either have had the wrong valve seals installed, they are physically missing, or the valves are incorrect (too loose in the guides/stem too thin). The rocker arm seals will not contribute to your issue. If it did not have the oil smoke before you took the head off, the issue is with whatever the machine shop did. Valve seals have to fit TIGHT, or oil will go down the valve stem into the intake.
Take the head back to the machine shop & tell them to fix it. For free.
Posted on Sep 27, 2008
on the 3.8 ussaualy not the head gasket but the upper intake gasket . antifreeze leaks inside intake and into the cylinder. very common. the new gaskets are much thicker.or the plastic plenum the black plastic part on top of the engine goes bad around the water inlet and need to be replaced . when i do either job itell the person to replace both at same time saves money and headaches in the near future. hopes this helps .....and cost for a shop to do this $1100 to $1500
Posted on Dec 08, 2008
Its funny that everyone has solved the problem without any answers to critical questions. In this case, everyone is right and everyone is wrong. ONLY careful testing and observation will determine if there is an actual problem. I do not solve problems just to be first. Even in a hands-on situation I refuse to jump to conclusions before testing, otherwise you run the risk of at best, "chasing your tail" or at worst, tearing into a perfectly good engine to prove nothing!!!
Happy New Year!!!!
Posted on Jan 01, 2009
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