Smoking white smoke at idal and lots of black at 1500 and above . a little miss at 1500rpms no power lose

depending on smoke ---white = coolant or water being burnt /head gasket intake gasket blown cracked or damaged head cylinder ////blue burning oil /// black needs tune up or fuel supply problem

White smoke is coolant burning most likely a head gasket. The fuel consumption could be leaking fumes

bad injector or fuel injection pump

White smoke would indicate you're burning engine coolant. Black smoke is usually raw unburned fuel, and bluish smoke is oil. Has the engine overheated recently? Is it losing coolant without any external signs of a coolant leak? You may want to do a block check to see if you have a blown head gasket....

It's going into your cylinder could be gasket could be head could be block

You need to smell the white smoke. If it is still burning coolant, the smoke will smell sweet and it will dissapate fairly quickly. if it stays like a cloud and doesn't have a sweet smell then it is most likley oil. When you changed the head gaskets did you check the heads for flatness? When you say it's not losing any coolant, how are you checking? do you take the cap off the radiator or do you look at the overflow tank? It doesn't take much coolant leaking into the cylinders to make white smoke. I would do a pressure test of the cooling system.

if you are losing coolant and and producing white smoke from the tailpipe you have the classic sign of a bown head gasket. usually this smoke is accompanied by a bitter sweet odor. most common causes are severe engine overheating or severe misfire(flashing check engine light). take the car in for a diagnosis.

The key is the color and smell of the smoke.

IF coolant, the smoke is REALLY white and usually lots, and this smoke has a sweet smell. A pressure test may show some loss, and as well, often you get a little misfire that goes away.

If Oil, the color is white, but with a lot of blue, or darker...

Most of the time, after the converter warms up, it eats and converts both types of issues...

Steam, can be normal. Remember that for every gallon of fuel you burn, you actually generate 1 gallon of water. Typically evaporates or exits as steam, and is barely perceptable.

white smoke is caused by coolant mixing into your combustion camber which is burning through your exhaust. More than likely a leaking head gasket is at fault

WHAT COLOR SMOKE DO YOU SEE.HEAVY WHITE SMOKE BLOWN HEAD GASKET.THAT WILL CAUSE THE PROBLEM YOU ARE DESCRIBING.