I think this is common but the search is down. The chattering sound comes from the front of the car. I here it in 1st gear when I first pull away. If I shift into 2nd or 3rd and let the engine lug a little and then accelerate it is really loud. This noise was in every Tour I test drove 4 years ago when I bought this one. But after for 4 years I would like to know what it is and how to fix it. It is kind of embarrassing when I have someone with me in the car.

Thanks

96 Contour SE,V6,5 speed,Black w/tan Leather, metal WP,heated mirrors,engine block heater 02 Ford 4x4 F250 Crew Cab,7.3 TURBO Diesel,6 speed,400 HP and 800 TQ 01 GMC,All Wheel Drive,loaded 69 Karmann Ghia Convertible,Body off restoration