UPDATE: checked the vaccum canister behind bumper, looks good along with the vaccum line that leads to it, haven't checked blend door yet but now another issue has come up, after installing water pump, clutch fan, and shroud, noticed what looks like steam coming from the vents, i thought maybe heater core took a crap on me now (would be my luck), so i bypassed the heater core by disconnecting the 2 hoses from it and connected them together, now all off a sudden ac works great but still steam coming from vents, so i guess its not the heater core? Freon leaking out? But if so i would lose the cold air right?