It pours out black exhaust muffler

white smoke when starting from cold is
condensation of moisture in the muffler/ tail pipe
that is normal .... till the engine warms up

heaps of white smoke when hot
suggests coolant/steam in the combustion chamber

blue smoke is oil
black smoke is fuel

Hi mate

I have 3 VWs and 2 Audis the VAGCOM but before you go out and spend a ton do the following

Change fuel filter
Get you a can of Seafoam

Since my tanks are only 14 gallons I used half of it every 6 months to keep injectors cleaned.

But because you have so much black smoke I will do the full can on a tank of fuel. Give it a drive it will smoke white a bit while it clears all the all junk. If that don't help that injected went to VW injector heaven.

Good luck

Yes

Smoke diagnostic is made by colour.
If u mean pistons head gasket,yes,it can smoke.
White (clear) water vapor.Ceck coolant level.Ceck engine oil colour by dipstick.

Black:runs rech on fuel (fuel filter/fuel lines/fuel mixture...)
Blue (whity):worn pistons rings.

Chears.
Tips:
Whity smoke before warming may be natural on cilli mornings with lot of compressure the engines just blows vapors.
Old oil/fuel residues in the exhaust tubing may blow smoke after heating the engine ,must track problem (...).
Black smoke on hitting the acceleration to the floor may be natural (overcharged) avoid sport driving style.

Does it blows white smoke ? And have you noticed oil in the end of exhaust pipe. If so remove the intake from turbo and check the shaft movement, and rebuilt your turbo. This http://www.turbochargerpros.com/repair/ford-turbo-repair.htm helps to repair your Ford turbo. If it is black smoke, you must replace your Fuel Pressure Regulator.

Hi,
We have that similar problem, thick black exhaust and too much revving.
Replace everything, tuned it up, but still that problem is there. Usually that was the problem of most Diesel Pajeros. Untill, we clean up the exhaust pipe and mufflers. Cleaning by means of using liquid sosa, detergent soap, and kerosene gas. Because diesel is a rich carbon emission fuel( oil ), mostly the carbon accumulated in the exhaust system and replacing the whole system is costly.
Just pull down the exhaust system, put the cleaning chemicals that I said, pour it in the exhaust pipe, block the end of the exhaust and pour water untill it fills up.Soaked it for a day and release it afterwards. You will see all the carbons that accumulated, fill it up again with fresh water so that your cleaning it up, untill no more carbon comes out!
Thats about it to get rid of that problem, either you replace the mufflers and buy a new ones or do this.
Thanks for asking FixYa!

Black smoke means way too much fuel or too little air is being pumped into the engine. Make sure the air intake filter is clean and the intake hose is not crushed. The O2 sensors are spark-plug-like devices that are screwed into the exhaust system just in front of the catalytic converters. You could have a stuck-open injector that would pour lots of fuel into one cylinder. Try to get the truck to Autozone or similar business that allows a free scan of the engine computer to see what codes it may show. Hope this helps!

my friend with that white smoke coming out the muffler means your head gasket is blown. With the head gasket blown their is not enough compression so it will barely start. Check for coolant in oil or viceversa

Rich fuel=black smoke.
Oil burning=blue smoke
Coolant burning=white smoke

This could be as simple as the EGR (exhaust gas recycling) valve stuck open. This valve is supposed to open at a specific time, recycling the exhaust gasses back through the engine. If they stick open, the engine is not getting the correct air mixture to burn the fuel efficently, causing black smoke and lack of power. Have the garage remove and blank off this valve. If it runs ok, then a new EGR is needed.

TL