Have that yo - yo feeling from the rear of my Vectra C . Could it be the coils because of softness or the shock absorbers ? Can't understand the
difference . It happens in a straight line and having some speed after you pass from a yamp for example . Not very
annoying but...
Can it be fixed by replacing the coils with some aftermarket products ( H & R perhaps ) ? Or it would be better to replace the shock absorbers ?
Thank you in advance for your time .
babisskg
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