My steering wheel jerks hard to the left and power steering goes out what could be the cause

Your vehicle has electric power steering that is likely malfunctioning and negatively affecting operation.This is a serious issue and a safety concern, so have it professionally checked as soon as possible. It also sounds like you could have a loss of electrical power happening, such has with a battery and / or charging system concern. Check this, too. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops