Sunday, June 6th, 2010 AT 11:18 PM
I recently purchased this car. It runs well, but when cold starting, there is a rather pronounced buzzing/clattering sound from the engine compartment. Lasts for about 3 seconds, and then stops abruptly. Does not recur unless car is turned off for a few hours. My guess is fuel pump or ABS self-test, but seems unusually loud. Should I be concerned?