92 accord, i noticed that when my temp gauge is at operating temperature, when i floor the car, the temp gauge drops to beyond the "C" on the gauge.

But my heat is still very warm & i have no other issues with it.

probably think the gauge is bad? or what do you think?

 

bad connection or bad ground. check that first

 

You might need to get some air out of the coolant system! This will cause a guage problem as you describe! When you let off the gas it goes back to normal right!

 

it goes right back to operating temp. U think i would of had a problem over-heating if i had a pocket of air in the cooling system. i have a cooling system funnel that get air out of the system.