How to remove a harmonic balancer from a car | ehow, You may also like. what is a harmonic balancer? a harmonic balancer is a device that connects to the front of an engine's crankshaft to reduce vibrations from the. How to remove a pontiac harmonic balancer | ehow, The harmonic balancer on a pontiac works to mute or absorb the resonance created by the engine during normal engine operation. the balancer is held in place by three.