the other night i went to my friends house and parked up by some snow outside of her house to pick her up. my car was off for maybe 5 minutes. it drove perfectly there besides stalling once from not paying attention. we get back in my car, the car started and it just died literally right after. clutch was all the way in and it was in neutral. i called my dad to drive out and come look at it. it kept dying for like 10 minutes. my dad eventually got it going by flooring the gas and it went. he drove it home with no problems. it drives it normally now like it did before, but it makes this weird noise when I start it. it doesn't lag or anything when it starts, it just makes a weird exhaust-ish noise right when it starts like its been holding its breath, it's very hard to explain. what could be wrong with it? it's only got 88k miles and its a 2001. I'm getting it looked at the mechanic tomorrow, what should I expect to be told that's wrong with it?