Originally posted by mbonanni
View Post
Grey car has wires that do not have as much resistance within them so current flows more freely. It may even have less corrosion as well which helps current flow. When you take a battery that works well in the Grey car with wires that are in better shape from a current flow standpoint and add it to a car that has wires that are high in resistance and potential corrosion then the battery cannot flow enough current to allow the starter to turn and what you hear is the solenoid that is pushing out the starter shaft but the starter shaft is not turning.
By jumping the vehicle or adding to the available current as you have (noted in comments you made) the system has at its disposal a greater level of current which allows it to provide enough that it will allow the starter shaft to turn and the solenoid to push the shaft forward and engage the flywheel.
You essentially overcome the resistance present in the wire(s) and allow enough current to run through those wires to turn the starter shaft.
Think im wrong? Try this - Add a secondary wire of a large gauge greater than 8 gauge to the circuit so that the current has a secondary parallel path to take and current will choose the path of least resistance and flow through that secondary wire and starter should engage. Or buy an ammeter that measures current and connect it in series with the wires that connect to the battery.
One side only - Hot will do. Then you will be able to visibly see the current flow and compare / contrast with the grey cars current flow.
Or , the simple solution is to just change the fricken wires - K? Even some good used ones sound like they would do a better job- Pick and Pull em for the cheapo route...
Comment