The add coolant indicator appears to be partially lit on my temp gauge on the 1993 FD I just acquired. I am guessing this is just light contamination from the backlight? Engine is cool, running below the middle of the gauge. Coolant dipstick says 90% full.

I just wanted to check to see if this is a common issue or maybe just a flaw with my gauge. Thanks.

 

welcome to the board.

here's a link to the FSM: Foxed.ca

maybe start by disconnecting the sensor and seeing if it goes away.