1991 Nissan 300ZX Repair Question
Topics covered: Engine, Black smoke, Smoke.
Mileage: No information provided.
Mileage: No information provided.
Asked on December 8, 2011
How do i fix a oil leak that i cant find where its coming from.when the oil leak began there was alot of black smoke coming from the exhaust
The car when started after i clean the spark plugs runs fine for bout half and hour then it starts to sound like it has a miss in the engine then the black smoke comes from the exhaust. what can be the problem with the engine. i bought a new engine seal kit for it and was wondering if changing the seals would fix the problem.
Asked by PARKS55Answer
Replied on December 8, 2011
Black smoke usually indicates a rich fuel mixture. As far as the oil leak, you can get a dye to add to the oil. Drive the vehicle and then check for the leak with a black light. The dye will glow.
Replied on January 23, 2012
easy enough to see a leak off a manifold, try placing cardboard under the engine area so the drippings will probably show. The black light system does work on small crack leaks like on a transmission case or a cracked engine block, good luck.