Today I went out to the grociery store, i let the car warm up and it did good the whole time. But then on the way home i was cruising at 45 and smoke started coming from the back??? It got pretty bad, the car behind me turned on their headlights lmao. Then like a minute later it stopped. What the crap is wrong with my car?

 

mine did that once while redlining, it let out so much black smoke that i couldnt see the car behind me. i was like ****!, pulled over and didnt see anything leaking so i started it back up and it never did it again. my compression is great too, musta been a chunk a carbon that luckily didnt get the apex

 

too weird. Maybe your ACV just failed and there was no air getting into the exhaust and your cats ******* melted inside or something! lol, not to sure..

 

well i dont have any cats or acv, or egr, and it let out the cloud of death for about 15 seconds

 

mine is white smoke... and the last owner said the acv does stick sometimes, is that the problem?