For a couple weeks my 2006 Ridgeline was "slow" to start (1 second hesitation, followed by a 1 second slow turn, then fully kicked in). Replaced battery. Same thing. Took it to dealer. Got the dreaded "could not duplicate" despite having demonstrated it right in front of the service manager. Same thing continued. A week later, no start at all, but now accompanied by white smoke and "firework" smell from somewhere underneath the engine (beneath the transmission dip stick) when the key is turned. Oil good. Transmission fluid good. Help!