I drove a 1994 Chevy Cavalier 4 cylinder today. After jiggling a corroded positive battery cable it started. The A/C worked, amazingly! So did the heater. But it smelled of gasoline! I have never experienced that. Do any of you mechanics know what that mean? Car ran well and all, but the smell was noticable, and stayed with me even as I drove 1/2 an hour home. Thanks