dalelefor
Member
I have a 1999 c5 with 100k on it. It just started a small but annoying vibration. It appears to be the engine because it does it between 1600 and 1900 rpm. It has a small vibration if you are driving or sitting still with the clutch in. When you rev the motor between 1600 and 1900 you feel a vibration and hear a vibration droning sound, the sound is very annoying. It is not exhaust sound but more of a engine vibration. I first though it might be motor mounts or harmonic balancer. The engine is very smooth below 1500 or above 2000 but really annoying 1600 to 1900.
