Does KIA CRDi Engine emit black smoke?

[blade10]

May '08 Kia Sportage ako kapag nagoovertake ako nagdadownshift ung gear nya para mas malakas ang pulling power napapansin ko itim na usok ang lumalabas sa exhaust ko kapag tintingnan ko ung center mirror. Normal lng b ito?

[yapoy86]

i suggest you try changing the diesel brand you are using... low quality diesel will surely cause black smoke even on modern crdi diesel engines...

there is still chance that your diesel engine will still produce black smoke especially during hard acceleration where your exhaust pipe carbon deposits becomes loose... in turn you will see black smoke..

also another cause is that there is no 100% efficient engine so during hard acceleration, your engine will need more fuel to give you the boost you need but in turn, the engine may not be able to burn all the fuel in that instant of boost..

it is good for diesel engines for time to time be subject for hard acceleration so that carbon deposits on exhaust are taken out.. this is a way of "self cleaning" of your exhaust system..

[blade10]

Tnx For the reply yapoy i will try changing my diesel brand because i use petron ill try changing to shell diesel

[yapoy86]

it also depends dun sa station where you buy diesel... minsan kahit shell may pagkakataon na pangit pa din ang quality ng diesel...lalo na dun sa mga stations na mas mura ang diesel...

kahit sa L300 mitsubishi namin may pagkakataon na mausok pag pangit ang diesel na naikarga...

[number001]

To answer your question, yes.

I recently convoyed with a month old brand new (no plate) Kia Carnival. It only emitted black smoke whenever it had a quicker acceleration and also during uphill surface climbing.

[blade10]

how about D4D engines of toyota does it emit black smoke?

[alainroyce]

blade10 * hindi naman dapat black smoke.. minimal lang dapat kahit high rev on CRDi engine.

[glenn_sp]

same with my starex crdi, lalabas ang usok pag hi rev at oovertake ako, sabi ng iba di daw nila kita usok, ako kita ko sa rear underview mirror eh, pero nawawala naman agad pag nka-arangkada na sya.. i think its normal lang, paminsan minsan lang ang piga ika nga.. hehe

[niky]

Any CRDi will emit black smoke at full acceleration if the fuel is dirty. I've seen it out of BMWs, Hyundai/Kias. Toyotas, Fords, etcetera. As long as the smoke goes away when off-load (cruising), it's okay... but if it smokes more than normal, you should change gas stations and find a cleaner one.

[Hanren]

Mine (Carens) does emit gray smoke specially during a sudden downshift (to first gear) on an uphill climb. On startup, I also notice that gray smoke coming out but eventually fades out after a few seconds. Initially, I was a bit concerned because I think new engines should give out exhaust that way I think it's still normal. I still see Toyota Innovas with D4D emitting the same exhaust color on the roads. The smell of the exhaust is quite different from the normal exhause of jeepneys so I think the engine is still clean as far as the exhaust is concerned.

[jatcos]

[SIZE=2]Indeed, CRDI engines do smoke but they are almost invisible. I havent seen CRDI smoking in white, usually its black and happens only during intitial-high revving of engine. They say this is normal because of engine's EGR that produces more heavy particulates(soot) inside exhaust pipe that when accumulated would give black smoke on initial or sudden engine revolution..Try cleaning your exhaust pipe with garden hose and water then observe if it will dissappear(temporarily). Maybe for permanent solution, try installing water methanol injection to burn the soot, decrease exhaust gas temp, and lessen particulate buildup..
[/SIZE]

[blade10]

Guys thanx to everyone.. it helped a lot..

[wiper]

[SIZE=2]Indeed, CRDI engines do smoke but they are almost invisible. I havent seen CRDI smoking in white, usually its black and happens only during intitial-high revving of engine. They say this is normal because of engine's EGR that produces more heavy particulates(soot) inside exhaust pipe that when accumulated would give black smoke on initial or sudden engine revolution..Try cleaning your exhaust pipe with garden hose and water then observe if it will dissappear(temporarily). Maybe for permanent solution, try installing water methanol injection to burn the soot, decrease exhaust gas temp, and lessen particulate buildup..
[/SIZE]

Maybe kia dealers does not use the proper motor oil. JUst like in vgt crdi engine of carens, the manual indicate that carens equipt with catalyzed particulate filter(CPF) should use acea c3 classification oil , but they use only petron sl/cI oil for all kia car. When I checked the Petron trekker motor oil with API spec of SL/CI ,it does not have acea c3 which means it did not meet oil requirement of kia. Without proper use of oil , the exhaust may clog the inlet pipe of the filter causing it to be inefficient and eventually destroy the engine.

[imperialv]

Maybe kia dealers does not use the proper motor oil. JUst like in vgt crdi engine of carens, the manual indicate that carens equipt with catalyzed particulate filter(CPF) should use acea c3 classification oil , but they use only petron sl/cI oil for all kia car. When I checked the Petron trekker motor oil with API spec of SL/CI ,it does not have acea c3 which means it did not meet oil requirement of kia. Without proper use of oil , the exhaust may clog the inlet pipe of the filter causing it to be inefficient and eventually destroy the engine.

*wiper.. I hope you can write a letter to columbian regarding the oil being used. I talked to my SA and columbian is strict in using only KIA-OIL for new vehicle. we are not allowed to bring any oil otherwise our warranty will be voided.

[nicadimalaluan]

i suggest you try changing the diesel brand you are using... low quality diesel will surely cause black smoke even on modern crdi diesel engines...

there is still chance that your diesel engine will still produce black smoke especially during hard acceleration where your exhaust pipe carbon deposits becomes loose... in turn you will see black smoke..

also another cause is that there is no 100% efficient engine so during hard acceleration, your engine will need more fuel to give you the boost you need but in turn, the engine may not be able to burn all the fuel in that instant of boost..

it is good for diesel engines for time to time be subject for hard acceleration so that carbon deposits on exhaust are taken out.. this is a way of "self cleaning" of your exhaust system..

how about po sa kia carens, newly top overhaul cya tapos pinalitan na yung fuel filter ung egrna clean n din pati ung airflow nya, tas ilang araw lang d pa gaanong nagagamit umaandar pero namamatay pag patatakbuhin na tapos ang itim sobra ng usok nya.... pano po kaya ito ano po bang dapat gawin