whitelightning74

I am new here and just purchased a 2003 gt with a 5 speed manuel. I love the car but I have a few questions. Scenerio= Car runs fine then you turn on the a/c or the fan and you can hear what sounds like a plunger typer noise or maybe like a check ball suction sound anytime you come to a stop like a flapper closing or something. It seems like something that activated or closes only at a low rpm. Its like a sudden thump. I was wondering is this common noise with these cars or If it should be checked out. I just assumed it is some type of vacum canister with a check ball in it ,that is associated with the a/c running to pull enough vacum. I know a/c or any accessory robs horsepower but to me it seems this car almost stumbbes a little whe nthe a/c or fan is on. Also are these car really cold natured or hot natured , when i leave my car out in the sun all day and get in it it will stumble when I pull out on the road sometimes when I accellerate. It will immediatlly clear up and the run fine. These problems are very minor and I can deal with them just wanted to know if they all do this and if its common before the warranty goes out .

StickShifty

if you have a warrenty i would def. take it in to a dealer, mine is in for warrenty work right now, its been gone for about 3 hours and i miss it.

whitelightning74

so I assume yours dont do any of this lol