Flickering temp gauge.

[danalyse]

My temp gauge was flickering and now it barely moves. Is the sending unit likely faulty and if so which of the two located around the thermostat housing is it.

[markseven]

My temp gauge was flickering and now it barely moves. Is the sending unit likely faulty and if so which of the two located around the thermostat housing is it.

When you say "flickering", do you mean it jumps around quickly? If so, tighten the ground screw behind the gauge.

[Garageaholic]

ground screw loose or corrosion.