At a constant highway speed on a typical straight road,lead/pull is the amount of effort required at the steering wheel tomaintain the vehicle's straight path.
Important:Vehicles will tend to lead/pull in the direction of the roadslope as part of normal operation.
Lead/pull is usually caused by the following factors:
Road slopeVariability in tire constructionWheel alignment (front cross caster and camber)Unbalanced steering gearElectronic Power Steering (EPS) steering position and torquesensors not calibrated correctly, if equipped.Vibrate Software Description and Operation
TheEL-38792-VSVibrate Software, is a computer software program which is designed to beused in support of the Vibration Analysis diagnostic tables, alongwith theEL-38792-AElectronic Vibration Analyzer(EVA)-2, and a scan tool, to help in determining the source of avibration concern. TheEL-38792-VSVibr ...