Oil is dripping on the manifold and has a bad burning smell. It has been doing this for a while. Used to notice it when I get out of the truck but now I can smell it while driving. Also, recently while sitting still with engine running the cab filled with gray smoke but cleared up when taking off. Where could this be coming from
Cars & Trucks - Nissan - Frontier - 2000 Nissan Frontier
Answers & Comments
YOU HAVE A LEAKING ENGINE VALVE COVER(s) GASKET(s), THE VALVE COVER IS ON THE TOP OF THE ENGINE AND COVERS THE VALVE TRAIN PARTS, IT IS THE MOST COMMON SOURCE OF LEAKS IN ANY ENGINE, THE OIL DRIPS DOWN THE VALVE COVER AND THEN BURNS ON THE EXHAUST MANIFOLD(s)