Coolant guage not working
Hey everyone, I'm having some issues with my truck. It over heated on me last week, so we pulled it in and replaced the thermostat, housing, hoses, and both temp sensors. The sensors were from Napa, and did not give a reading on the temp gauge (stuck below cold). We thought it was the sensor, so we swapped it for an oem ford sensor. That still didn't work, we also shorted the coupler that it plugs into and the gauge spiked to all the way high. Can anyone help point me in the right direction, so I can get my truck fixed?