Subaru Wrx STI ground cable repair from cylinder heads to frame rail | save your head gaskets!

Shows viewers a way to repair a broken ground cable on a Subaru wax sti. Or any Subaru for that matter. The grounding system is an essential part of the car's electrical system. You may not perceive any drivability issues when a single ground is broken because the car has multiple ground points to reduce a chance of total failure. Some even believe that the ground cables take the ignition potential back to the battery thru the cable. The way the factory ground straps are connected, the current will travel from the spark, into the valve cover, into the ground strap, into the frame and then into battery Negative. When that cable is broken the potential has to travel from the valve cover, thru the metal head gasket thru the block. It only take simple tools and ramps to do this fix yourself.