After driving the car for a few miles and breaking several times, the front end starts making a popping noise. This only occurs when making a complete stop (under 20 mph). I have taken it to the dealer, a big o tire, and pep boys and neither have been able to find a definate problem. It started several months ago and is getting louder. The E has 90k miles on it now. Any suggestions would be great. Im thinking about replacing the strut assembly to see if that helps.