Now that you mention it, I think I have heard that sound - a hissing noise toward the back of the car. I never gave it much thought before, thinking it was just some blow-off from the air suspension or something. Maybe that's it. It's been doing it for a while, though I can't say if it pre-dated the stalling/hard starting or not. If it is a faulty fuel punp though, wouldn't there be some hesitation while driving? I have none. When it finally starts, I'll be sure to listen more closely for the sound. Is the fuel pump replacement a DIY job for someone of average ability, (I recently changed the serpentine belt and water pump, but sent the car out for a blown head gasket repair). I think from reading here that my car has two fuel pumps. How will I know which one is faulty, or should I just replace both to be safe if this is what the problem is? Thanks for the suggested diagnosis though, and the info on the OVP relay.