Ford amperage gauges rarely worked correctly see is power is coming to coolant gauge it may be a poor connection, other wise you will have to hook your own up with a gauge set. Voltage gauge is much easier and accurate though. They normally come as a set at auto parts. To test cluster it is the red/white wire for coolant. It should blink or have low voltage.
Thursday, September 29th, 2016 AT 6:19 AM