ok so ill start from the beginning, i noticed the car running a little weird, so my friend and i took a look at it and i was leaking coolant from the lower intake manifold. so i took it to a shop and had them replace the gaskets. then when driving the car home it still felt like it was not running right and before i could get anywhere the car started over heating real bad and steaming like crazy. so i pulled into a gas station and popped the hood. i could not see it leaking from anywhere, the coolant came out of the overflow tank. so i took it back to the shop and they said i had an air bubble, so they "fixed" the air bubble and it drove home fine (not over heating or steaming anymore) but still not right. so when i left for work it happened again so once again i went back to the shop and it was steaming like crazy and they could not find any leaks. so they "thought" it was the thermostat, so they replaced that. now the car is still doing the same thing..and its really starting to piss me off..i need any advice as to what it could be, what they did wrong, what i should do, and anything else useful before i decide to do something drastic and cuss someone out or anything to get in trouble or start something bad..please help
Thanks.
Thanks.