Vibration on a 2004 HELP

[mrsep48]

My ride has a continuous low oscillating vibration at all speeds, at idle, in nuetral,in park.And it is felt in the steering wheel, in the seats, on the gas pedal, etc. And it is not the motor mounts. What can it be? car has 65k

[gingn]

I am experiencing the same problem. 2003 corolla with 111,000 miles. shakes violently at idle. noticed it after replacing a worn engine mount. Replaced serpentine belt tensioner, spark plugs, head cover gasket, pcv valve, tb gasket and cleaned tb and iacv. Any ideas?

[ethaneh]

I am having the same issue as described above. I've read a lot and it seems to be either the idle control or dirty injectors. I'm going to try a few things and see if It fixes it.