Ever since I purchased my used 2002 Pontiac Grand Prix (I got it about a year ago), whenever I turn off the car, I notice a clicking/tapping sound coming from just under the car on the left (driver's side). I don't know much about cars, so I couldn't tell you what part it's coming from, but the sound goes away not too long after the car is turned off. Here lately it has been clicking faster, and a little more loudly. Everything else seems fine with the car. Does anyone know what this could be? It's more annoying than anything, but I just want to make sure it couldn't develop into something more serious. Thanks!

possable fuel pump.
possable relay to the fuel pump.
possable relay to anything.
these relays could be going bad. could be a short in one of them.
need to pin point the clicking grab a peice of hose and look where you think its coming from and listen with the hose in that area.