RE: 2004 Camry 2.4V, During acceleration, there is a heavy vibration that occurs. It stops when you take our foot off the accelerator but starts right back as you get back on the accelerator and continues as you maintain speed. vibration seems to shake the whole car. This problem started after having the 5000km change oil and replaced the oil filter, did not replaced the spark plugs though. What seems to cause the problem? Can anybody suggest a reputable shop who can fix this problem? Thanks