motor vibrating on 2002 Hyundai Elantra

i put on a brandnew harmonic balancer still doing it when i stop on the signal light the whole dashboard shakes friend of mine told me could be the timing

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1 answer 3 comments
May have a collapsed motor mount.
this car got 4 mounts do i have to replace all 4 thank u
No just the bad ones if that is your trouble. Get a mechanic to check them for you.
will do that thank u