[Quy Le]

evne with a tune up it would do that, thats cuase by many reasons really, Mainly carb operater vehicles, because the engine runs so hot that even spark cutoff on the engine it still fires gasoline, thats called Dieseling, happens alot of old motorcycles too, i ebt ya it happens alot when its really warm. If your fuel injected thats a different story, fel is 100% cutoff on those. but for carbuerated the manifolds going to have some gas in it, a tune it would help, carbon buildup can make the situation worst. i can go on for days.... i had a 1987 dodge omni like that...