I think I have a question that might stump even you guys. I've had every single possible answer to this question you can think of, and I've tried several things, but nothing works. Let's see what you guys think...
For about two or so years now (can't believe it's been that long), I've had this really strong odor coming out of my tailpipe (and I'm 99% certain is coming out of my tailpipe alone) of my 89 Nissan Sentra sedan
. Mind you, it's only when the car's engine is running, never when the car is not running.
The odor resembles that of...rotten eggs!!!
It's almost always very, very strong and I don't know what is causing it. I've had one person say I have a dead rat stuck in the muffler, and someone else says it's the frequent use of regular gas as opposed to premium that is causing the odor.
I even had a friend who had the same problem with his 96 Mit Galant. I'm thinking my car is old and so that is what the reason is but here is a 96 Galant having the same problem. I also notice once in a blue moon cars on the road with the same bad odor being made from the tailpipe.
Any ideas? I'm dying to know what the answer to this is!!!
Oh yeah, one more quick little thing: black smoke coming from car's tailpipe, what could it mean? (Carburetor, not fuel-injection).
Thanks for any help!