When accelerating, smoke is emitted from the exhaust

AKRAMATEEFA

MEMBER
2005 HYUNDAI TUCSON
2.2L
4 CYL
2WD
AUTOMATIC
192 MILES

Hello,

When I am on the road when I increase speed, black smoke is emitted from the exhaust. Can you please tell me how to fix this problem, what are your recommendations?

Vehicle listed above is a diesel CRDi JM,

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,740 POSTS

Hi,

First, please understand that this vehicle is not offered in the US with a diesel, but I will try my best to help.

Excessive black smoke from a diesel is normally caused by excessive fuel entering the combustion chamber. Have you checked the fuel pressure to make sure it isn't above the maximum pressure specifications? If not, that is where I would start.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Also, keep in mind there are other things. A plugged air filter, injector wear, or anything that can cause excessive fuel to the engine.

I hope this helps. Let me know if you have other questions.

Take care,

Joe