I actually have replaced the sender unit. The problem seems to be in the wiring between the sender unit and the gauge, Then gauge show 1/2 way to hot even when the wire to the sender unit is unplugged and even when I put the unit plugged in into ice water. Te gauge seems to be miscalibrated, but no one talks about that as a solution. Even when the motor is cold, it just goes to 1/2. I tested the gauge by grounding the sender unit wire and it went right to hot like it was supposed to.
Wednesday, August 7th, 2013 AT 6:36 PM