Hello! I’m having an issue with vibration on my land cruiser 2uzfe related to rpm. Does it even when parked. It seems to sharply stop at 4100 rpm. It starts close to 3000 rpm, maybe 2500.. I took off fan and clutch and serp belt and it does not vibrate . Got a new fan clutch because there was a little play. Same vibration . Any ideas ? According to build date (10/04) and vin this is not a vvti engine