Temp.guage goes from normal to hot n a dash&back2 normal,beepsthen does later

What is your question?

Temp. Gauge goes from normal to hot back to normal beeps then is ok for a while and does it again.electronic gauge.i check the hose and the engine is hot but not over heating hot . Drive a while and it'll do it again.gauge shoot up to hot then back down n flash, check and normal beeps. But it's become more frequent it only jumps to hot n a flash then normal again. Changed thermostat and put new hoses top& bottom could this be a short or a indication of something worse. Every time it does it it goes back to normal.ive not smelled it over heating. Runs fine just beeps then jumps up then back down.

What makes this problem better or worse?

The same all time

How long has your 2000 Ford Crown Victoria had this problem?

6 weeks