so i have a 88 7mgte and i just replaced the hoses with these cheap silicones i got from pepboys..my thing since than..i been hearing weird noises from the dash/engine... sometimes when i rev it it happens...first it started out like it was a liquid being swooshed around in the dash..i tried popping the hood but i think i can only hear it threw dash...but now i tried paying more attention and it seems like its a vibration...like a loose bearing?...im not sure..any input?