Question about 1999 Volkswagen Jetta

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My exhaust is letting out black smoke when i accelerate ...how do i fixx this problem???

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Black smoke is oil passing through the engine rings. Replace or rebuild the motor which would either way cost more than that car is worth.

Posted on Apr 07, 2015

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Why does engine run rich at times under acceleration?


not enough detail
to get an engine to accelerate , the air /fuel mixture is moved to rich in accordance with engine rpms
the more rpms the richer until the peak rpms are reached
( accelerator pump-power valve in carbies and ECM settings according to accelerator position
black exhaust smoke in diesels
so if you press the accelerator slowly then the air/fuel mixture is altered constantly in relation to the pedal setting
If you floor the pedal then it moves to rich and you get black exhaust smoke until the air mixture is again in balance

Oct 21, 2015 | Cars & Trucks

1 Answer

Had exhaust manifold replaced since then my 2001 caravan bucks and blows black smoke little to no power


if you replaced the manifold because it was cracked the look for a plugged cat convertor..the cracked manifold was probably letting the exhaust escape..now it builds too much back pressure

Jul 24, 2012 | 2001 Dodge Caravan

1 Answer

Black smoke from nearside exhaust, on occasions.


Black smoke indicates it is feeding too much fuel. Maybe problems with the fuel pump.

May 12, 2010 | 2005 Jaguar S-Type

1 Answer

1996 volvo 850 turbo smoke coming out exhaust


I assume you mean exessive smoke?
White smoke = watersteam - usually cracked cylinderhead gasket
Replace gasket
Black / dark smoke preferrably visible when accelerator is let up after acceleration = oil - usually enters the cylinders through worn valve seals.
Repclace seals (can be done without lifting cylinder head)

Mar 30, 2010 | 1996 Volvo 850

6 Answers

Jag X TYPE Diesel Black smoke coming from exhaust on acceleration


i had this problem and thought the fuel filter oil filter needed replacing so i have just had a service done but problem is still there but not as bad. been told it could be the AGR valve or a split pipe going to it which recuirculates unused fuel back to burn again. therefore unspent fuel is coming out of the exhaust causing the black smoke. i am still looking for the answer aswell, hope this helps.

Nov 07, 2009 | 2004 Jaguar X-Type

1 Answer

Kia sedona 2.9 diesel black smoke exhaust


Black smoke from exhaust means engine getting to much gas.

May 23, 2009 | 2002 Kia Sedona

1 Answer

Black smoke when accelerating


Black smoke from exhaust means engine is getting to much fuel

May 23, 2009 | 2002 Kia Sedona

1 Answer

Not accelerating and letting white smoke out exhaust


it sounds like the engine coolant is leaking into the combustion chambers most likely due to a leaky head gasket or a cracked cylinder head and will cause loose of power in acceleration

May 02, 2009 | 2000 Volvo S80

2 Answers

2001 E220 CDI exhaust tail pipe black smoke on acceleration


Black smoke is almost always an indication that the air/ fuel mix (ratio), is too rich. I would try to find out if the just cleaned the injectors or were they replaced. Cleaning injectors and sometimes leave irregularly shaped orifices. Besure the air filter is clean. This can effect mix also.
Good Luck and hope this helps.

Mar 14, 2009 | 2001 Mercedes-Benz C-Class

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