About 3 months ago the check coolant light came on and i had it checked,they said it was the water pump and i had it replaced, afew weeks later it came on again so i added coolant and it whent of. Since then I useded the whole bottle. I dont see anything under the car the overfill is is low but not empty, is it likely to be the water pump again,at this point i am not having much faith in the shop I took it to and am thinking about going to the dealer even though it is still under warrant from the shop.