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Too much black smoke coming out when the engine starts

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Standard feature,especially when cold or heavy load acceleration,
you could try an injector cleaner (wynns/redexe)

Posted on Sep 15, 2010

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Posted on Jan 02, 2017

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Engine run rough and black smoke coming from tail pipe why?


Go to the wreckers car junk yard and see if you can find another module or buy a new one but yes it sounds faulty... modules are non-serviceable so just get another... Run a code reader just to make sure that it is that module thats faulty

May 09, 2017 | Cars & Trucks

1 Answer

When first started black smoke comes out exhaust pipe,, what could this be


Black smoke is burning oil. Blue smoke is usually transmission fluid due to a leaking modulator valve in the older auto transmission. White smoke is due to water getting in to a cylinder from a bad gasket, cracked block or a cracked head. Black smoke from engines on starting and/or running tends to mean there is fuel leaking into the engine, or the fuel mix is incorrect and not atomised correctly. the main causes are normally a nakered air filter that isnt letting enough clean air into the engine to mix. a blocked fuel filter, which is either not letting enough fuel in, or in some cases, a faulty fuel filter which is letting too much fuel into the engine, and causing black smoke due to excess burning. Black smoke is a fuel/air mixture suggestion problems with injection or carbonation. Cause of black smoke is due to running rich in the fuel air mix. Check the oil,the oil leak,the air filter,the fuel pump and fuel filter to confirm the fault.

Thanks. Keep updated for any more query. You can rate this solution and show your appreciation

Sep 22, 2010 | 1986 Mercury Grand Marquis

1 Answer

No power some times black smoke comeing out


That sounds like engine flooding, getting too much gas. Have electric choke checked for one but black smoke with drop in power must be too much gas at times.

Apr 29, 2010 | 2004 Renault 181

2 Answers

My 1998 Rav4 gives off a few seconds of black smoke at engine start. No other problems have presented. Anyone tell me what is going on? Thanks in advance!


You may have an excessive rich mixture due to a sensor malfunction that is causing excessive fuel enrichment., The part that gets me is that you don't have a check engine light on. a 98 Rav4 is an OBD2 vehicle and should have thrown a code and turned on the check engine light ,if you have a bad sensor Black smoke is usually a sign of too much fuel, blue smoke is a sign of oil being burned and white smoke or steam is usually a coolant leak into the combustion portion of the engine, Verify the color of smoke and go from there. Some enrichment at start up is normal because cold engines need enrichment to start and run properly till warmed up.. Goodluck

Aug 25, 2009 | 1996 Toyota RAV4

1 Answer

Why do i get black smoke when i boot it hard out of the exhaust


Black smoke is caused by excess fuel that has entered the cylinder area and cannot be burned completely. 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 fuel odor. Some of the causes of excess fuel are a carburetor that is out of adjustment, a faulty fuel pump, a leaky fuel injector, or a faulty engine computer or computer 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.

Aug 17, 2009 | 2005 Jaguar X-Type

1 Answer

Hard starting and to much smoke when engine running idle and sometimes fluctuation


Smoke usually there's a problem.... Bluish gray smoke means you're burning oil (could be a number of things like piston rings, valve seals)... White smoke means could mean you're burning transmission fluid, or there's a crack in the gasket or engine block.... Black smoke could mean you need your air filter changed, bad fuel injectors, bad distributor cap, ignition coil... I would guess it's probably black smoke coming out of your exhaust from the sounds of your symptoms...

Aug 11, 2009 | 1993 Saturn SL1

2 Answers

My truck blows white smoke


Hello!
There are two differnt reasons for black and white smoke coming from the tail pipe.
Black smoke means fuel runs rich (car getting to much gas). Check fuel pressure/air filter.
In some cases the white smoke means car is burning oil or transmittion fluid. Have tem checked/replaced.
If you can feel a smelly smoke it can be catalytic converter.
In a worsest scenario if car blowing white smoke it can be engine coolant is getting into an engine cylinder from a bad head gasket ,or a warped/cracked head. So you need to keep your eye on coolant level and check your engine for overheat. Also might be good to check your oil for traces of coolant (on a dipstick it would be a milky substance mixture of oil and coolant).
Good Luck

Dec 06, 2008 | 2006 Ford F-250 Super Duty

3 Answers

2000 dodge caravan 3.3l engine


Your engine is toast. The black smoke indicates more than likely your valve seals are leaking oil into the combustion chamber or the piston rings are shot.

Time for a new vehicle...

Aug 16, 2008 | 2000 Dodge Caravan

3 Answers

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.

Jul 20, 2008 | 1996 Pontiac Firebird

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