Question about 2006 Hyundai Tucson 4WD 2.7L V6

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Why tucson produce lot of black smoke when driving up or racing

Cleaned all the injectors and EG and modified the gaskit of engine head.

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Black smoke is usually excess fuel, whereas blue smoke is excess oil. Bad coolant temp sensor, vacuum leak, bad maf, map, other. Best guess is coolant temp sensor as these often fail, making computer think engine is cold and thus causing way too much fuel delivery.

Posted on Dec 10, 2014

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My Toyota ipsum is producing a heavy smoke and chews fuel


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My 2006 4WD tucson car produce lot of black smoke while driving, what could be the reason?


High fuel pressure, or a partially clogged catalytic converter. Does it make good power, or does it seem weak when you depress the accelerator?

Dec 09, 2014 | 2006 Hyundai Tucson 4WD 2.7L V6

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What will happen if head gaskit fail to function


It could have several different symptoms. Coolant could get into the oil, it could overheat, coolant could get into the combustuon chambers and cause a lot of white smoke

Dec 09, 2014 | 2006 Hyundai Tucson 4WD 2.7L V6

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While driving my dashboard displayed the warning sign for oil. the oil level was correct, but still it is rough on idle and makes a lot of smoke. how may i diagnose the problem?


Bummer deal! Rough idle and black smoke indicates a possible bad fuel injector leaking gas - or failing spark plugs. Bad or dirty injectors are a cause of sticky valves, and when sticky do cause rough idle and sometimes valve tapping - beside black smoke. Check those items first as they are most common failures. Rarely, a engine head sealing gasket may leak coolant into the motor to cause such problems. That would make a white steamy smoke. In that case it would overheat - did it? In this case, serious engine work, or a new engine is needed. I like the products at this web sites to end those issues. Hope this helps. DIY fuel injector cleaners fast acting Ends several tune up problems

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My nissan 2.4i hardbody fuel injectors are spraying constantly at the same time, causing the engine to consume a lot of petrol and loose power in the process and produce black smoke on the exhaust. What...


faulty fuel distribution leads to the fuel injector pump assembly , I would guess ? something is bust inside it ,,,,,? loss of power and balck smoke is from poor burn . Check fuel wet spark plugs ?
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I have Hyndia Tucson 2006 Deisel. I have a problem in it. This problem is smoke heavily (Black) and there is no intention of any force during press the accelerator.


mean there might be fuel leaking into the engine or the air to deisel ratio is and not atomised correctly. the main causes are normally is the air filter that isnt allowing air into the engine. Fuel filter can also be at fault not allowing enough fuel in or allowing to much in the engine sometimes. This causes the chamber to burn it out. Fuel injector if fualty could allow to much fuel or not enough. My personal suggestion would be to run fuel injector cleaner first, then change the air filter. If that doesn't fix it change the fuel filter. I would go the cheapest route first. Is is prolly something simple

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White smoke cuming out tailpipe 3400 v6


I would almost bet you have a blown head gasket or a cracked head. White smoke at the exhaust, loosing coolant, moisture on the underside of the oil fill cap, and on the dip stick are all signs of a blown gasket. The fact that there is no coolant in the oil does not mean it does not have a blown gasket. To find out for sure remove all spark plugs, disconnect the coil wire, and then run a compression test on all cylinders. If you find one or more with low compression you have a blown gasket. Do not drive this car any longer until you get this repaired. Serious engine damage will occur if you continue to drive it.

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1 Answer

Engine vibration


The vibration like comes from a misfiring cylinder when cold, which in turn can have many causes; bad spark plug, bad coil, bad fuel injector, leaking head gasket etc.

With such a major overhaul that you did recently I'd go back to the shop since it can be related to the repair. This is especially true if you see white smoke from the tail pipe.

Good luck!

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Black smoke from exhaust


hi nishga
im dave; hope i can help

First you need to determine if it is actually black smoke or if it is blue smoke. There are three colors of smoke that can come from the tailpipe. It is not white smoke obviously because that is easily differentiated from blue or black and generally indicates water or antifreeze leaking past the head gasket and into the compression area of the motor. White smoke is the steam of the water/antifreeze being emitted

Blue smoke is caused by engine oil entering the cylinder area and being burned along with the fuel air mixture. As with white smoke, just a small drop of oil leaking into the cylinder can produce blue smoke out the tailpipe. Blue smoke is more likely in older or higher mileage vehicles than newer cars with fewer miles. The car has many seals, gaskets, and o-rings that are designed to keep the engine oil from entering the cylinder, and one of them has failed. If too much oil leaks into the cylinder and fouls the spark plugs, it will cause a misfire(engine miss) in that cylinder, and the spark plug will have to be replaced or cleaned of the oil. Using thicker weight engine oil or an oil additive designed to reduce oil leaks might help reduce the amount of oil leaking into the cylinder.

Black smoke is caused by excess fuel that has entered the cylinder area and cannot be completely burned. Another term for excess fuel is "running rich". Poor fuel mileage is also a common complaint when black smoke comes out of the tailpipe. Black smoke out the tailpipe is the least cause for alarm. Excess fuel will usually effect engine performance, reduce fuel economy, and produce a heavy fuel odour in the engine compartment. Some of the causes of excess fuel are a carburetor that is out of adjustment which is not likely unless you have installed an aftermarket carburated system on your non-carburated car, a faulty fuel pump, a leaky fuel injector, or a faulty engine computer or emissions sensor. If black smoke is present, check the engine oil to make sure excess fuel has not contaminated it. Do not start the engine if a heavy, raw fuel smell can be detected in the engine oil. Check the above mentioned systems and after detecting the trouble replace the faulty parts and then the engine oil and filter.

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