losing water

[capesr20de]

I just started losing water recently and I can't find a leak any where. when I stop and get out to look nothing is there. but its not pulling water out of the resavar and its only losing about a cup or 2 of water. any advice?
thanks

[the head]

any white smoke?
if you start your car with the rad cap off (cold start) are there any bubbles coming up?

[capesr20de]

no smoke it has some hesatation when I get on the gas but it think its a boost leak. not I have not try stating it with the cap off when its cold.

[SimpleSexy180]

water pump?

[aznpoopy]

how did you notice you are losing coolant?

someone correct me if i'm wrong but its pretty normal for the level of coolant in the overflow tank to change depending on whether the car is cold or has been driven for a while.

[capesr20de]

I just happened to check my radiator and it was low so I filled it up. just happened to check it when I got home and it was low again. and it been going low for a couple of days now and I cant find a leak. and its not pulling water from the reservoir

[the head]

my guesses
HG is going
bad turbo seal
water pump