Ford Starting /House Charging Question UPDATE Test

One note of caution: They can look very similar, but do not replace a failed isolation solenoid with a Ford starter solenoid. The starter solenoid is a momentary contact coil design, while the isolation solenoid is a continuous use coil design. Ford starter solenoids installed on the isolation side will often fail fairly quickly due to coil burn out. Continuous use solenoids used on the starter side often fail fairly quickly due to the high contact current the contacts are not designed for.