well ive been lucky enough to have had my intake manifold gaskets replaced on my 2000 grand am gt. i also had front/rear brake servicing and fuel filter replaced and blower resistor.
my car is now having "pinging sounds". i called the service guy and he said sounds like a possible "Vacuum leak". What the heck is this? I spent close to $2000 and am not going to spend anymore.
car runs smoothly, no other problems except the constant pinging while in idle and driving.
any help would be much appreciated.