I have a 2005 Chevy Impala SS. 40K miles 3.8 with super charger. I bought as a certified used car here in Columbus Ohio. It had 25K in april and now has 40K in August. I do a lot of driving mostly highway. At around 30K I started noticing a slight vibration on light exceleration at around 60 to 70 mph. I have had it at the dealer many time. First they had me replace my tires. Then they started to replace parts. So far to date they have replaced both front axels, both front brake rotors, the left front hub and motor mounts. the problem still exist. Again, this is only under load with a slight exceleration. I can feel it in the stering wheel and my legs.
Aug 14, 2007 at 9:31 AM