orbital02

I have a vibration in my 4runner when I rev the engine to 2400-2900 rpms. This vibration is in any gear. Any thoughts?

TOYOTA 1

does it do it in nuetral? if so, maybe your clutch? i mean i guess a piece of your disc could have come off and now its out of balance? or you have a bad motor mount?..... just some ideas!

abecedarian

+1 on the possible motor mount
clutch? possibly.
vibration dampener on the crank? could be.
misfire? maybe

orbital02

thanks for the ideas. I pretty sure its not a misfire. Its an auto so no clutch and the when I stick a pry bar in between the mounts and the frame, it vibrations even more. So im not sure what that means. As far as the crank damper... I dont know but how could I check>???

CJM

Motor mounts, trans mount, out of phase or balance driveshaft, bad u-joints, bent axleshafts, out of round wheels or tires can all cause a vibration.

orbital02

All of those wont matter since it vibrates in park when the truck is not moving. One new thing I noticed is that around 1700 rpms the truck vibrates in delayed intervals. For example, it will vibrates very slightly for a second, then nothing for a second, then back to vibrating for a second and so on. It still vibrates around 2400- 2700 rpms as well. I mean... It has to be engine related and i dont know what engine part it could be since they are all new. Actually I did break an injector wire inside the plug so I just wired the injector up without the plug. It seemed to work fine, but maybe its causing some interference or resistance issues??

CJM

Motor mounts...