stalls out, help??? When I am accelerating it starts to pop and sounds kinda like its stalling out but it doesnt, also when I am at a consant speed it also does that. Now when I even start it up I just stalls out and right when I go to start it up, the starter is brand new and I can hear it trying to kick over but it just wont start up. I just had it fixed and my mechanic can't figure out why it is making as he calls it popping. Please help!