The first thing I would do is a quick visual inspection for any oil or fluid leaks near the area where you are seeing the smoke. After confirming that there is nothing leaking onto an accessory drive belt or the exhaust manifold I would check the fans. With the engine cold you need to gain access to the fan blades and turn them slowly with your hands to verify that the spin freely and most importantly smoothly. If you feel any roughness, or if the fans are binding up or sticking at any point in rotation, there is your problem. You say that it smells like oil or grease, but most oil burning will give you a grey smoke. The black smoke sounds like electrical smoke which points towards a fan problem. Let me know if I can be of any more help.

Answered by Marv-Ellis (expert)
18 answers provided

Yes i have checked the leaks and left a cardboard under the car overnight. there is no leak. Main fan is working freely. I try to move auxiliary fan and it did move freely, however i didnt try the whole circle. I will try that and come back to you.

Regards

Response from yadsingh4615
3 questions asked

I will do a little more research as well. When you are checking the fans, do a quick visual and make sure that the wiring in that area looks ok. There is always the possibility of something not fan related. Let me know what you find.

Answered by Marv-Ellis (expert)
18 answers provided

PLASTIC "COOKIN'" GIVES OFF BLACK SMOKE

......THIS MAY OR MAY NOT BE YOUR ISSUE

WE DID NOT GET TO SEE THIS PROBLEM 3 WEEKS EARLIER, OBVIOUSLY THE LADY WAS NOT OBSERVING THINGS EITHER. LOOKS LIKE SHE WOULDA HAD SOMEBODY LOOK UNDER THE HOOD AT MINIMUM, WHEN SHE FINALLY ADMITTED IT WAS "SCREAMING" NOT "SQUEAKING LOUD"

I'M NOT SURE WHAT THIS CAME OFF OF...I'VE KEPT IT OVER A YEAR

MAY HAVE BEEN A BMW OR A LEXUS

THIS IS JUST A MILD EXAMPLE OF HOW PEOPLE NEGLECT THEIR VEHICLES

THIS MIGHT HAVE LEFT HER SITTING IN A BAD ENVIRONMENT

THE MEDIC

Answered by CJ MEDEVAC (expert)
6,803 answers provided