I have a 2001 Stratus 3.0 ,V6,it starts to smoke after 10/15 minutes. The smoke it disappears into the air,could that be a sign of the head gasket going bad`

coolant is getting into the engines combustion chamber it sounds like to me. a cooling system pressure test will confirm that but almost certainly you have a bad head gasket or cracked head

What happening is you have a bad head gasket or its starting to go bad. As long a little oil is getting in to cylinders causing that smoke once it warms up that gasket is expanding thus the smoke stops. I would keep an eye on oil levels if it gets milky replace gasket asap. Could also be intake gasket but highly doubt it this sounds like a worn head gasket.

Could be that the intake manifold gasket is bad.

http://www.ehow.com/how_8038401_replace-head-gasket-2001-stratus.html

There you go

At a shop, at least $500 for an inline 4 cyl, no less than $800 for a V6. Also, you may find that the head(s) is cracked, increasing the cost even more. I would not recommend that you pay or sign anything until you have had it looked at by a mechanic.

The signs for a blown head gasket are:
1 - The car oveheats above 195F.
2 - The cooling system is loosing coolant, low coolant level.
3 - The coolant start boiling and owerfloing from the coolant bootle.
4 - Mixture of coolant in oil, or oil in coolant.
5 - White smoke from the tail pipe.
The diagnoses to reveal a blown gasket are.
1 - Radiator compression test. Can be done at any car reapair shop for $30.
2 - Static cylinder compression test. Can reveal at which cylinder is the blown gasket (pression low, or zero). This is very important at V6 or V8 engines.

Do you see white smoke from the exhaust? If so you may have a blown head gasket especially if this engine has overheated. Check the oil level and if it is overfull and looks like a cup of coffee with creme in it, you have coolant in the oil. Remove the oil cap, and if you see a foamy broth under the cap that is another sign of an internal coolant leak. If you see none of this then you have a leak somewhere. Fill the reservoir and radiator with coolant. Park the car over a clean driveway. Start the engine and then let it sit and run until you see where the leak is coming from.

Lots of white smoke is a sure sign of a head gasket problem. Thats actually steam you are seeing. Coolant is getting into one or two of the cylinders overnight, when you start th car in the morning, the heat of combustion steam that coolant and it comes out the tailpipe. The only solution is to pull the heads. Be sure to have the heads checked for cracks. Hope this helps.

most definitely the cylinder head gasket is gone.the oil does not just disappear,it finds its way to the radiator,i.e. mixes with the water.unplug the rediator cap with care(when the engine is cold)and u will see some kind of sludge,creamy colour,which confirms that the cylinder head gasket is burnt.u need an engineer to do the job for u.

I have a 1989 chevy silverado. my dad bought it new and never drove it. he wanted to pay it off first. after 5 years it had 15K miles on it. it then smoked everytime he cranked it after it had sit a while. The lack of driving it caused the rubber valve seals to dry rot. so now when it sits, oil seeps down between the valve and the seal and enters the piston chamber. when he cranks it, a poof of blue smoke blows out the exhaust but quickly disappears after the the initial poof of smoke.
this may be your problem also if you have abnormally low milage on the vehicle