- Oct 18, 2012
- 157
Ok so I replaced my bad stock motor mounts with dea ones back in August, today I finally installed a pair of brand new gm ones, this solved my high frequency vibration but increased the subtle shaking I have had all along that now is ridiculous. I can watch my whole motor bounce and once I figure out how to upload videos who'll show what I mean. All bolts are tightened to spec on the motor mounts. Also I took off the belt to see if it was engine or pulley related, the engine still shook with the belt off. I have replaced all of the plugs last week, all the coils look good, I just don't know what is causing this shake. I do hear a weird noise down on the drivers side of the motor, it's like a cross between a sucking noise and an electrical buzz, I don't think it's a vacuum leak but I really have no idea, idle rpm stays steady at 600. Also if i push the gas and the rpms go any amount above 600 the shaking goes away and it runs and drives smooth, any ideas?