Have a 02 3.2 temp gauge seems to work when car is cold once iv been driving a while gauge drops to zero reading g and red water light on , car is 100% was wondering whether it is a fault with dash clocks or temp sensor ?? Anyone came across this ?
That's an unusual condition that would point to 2 separate faults
Gauge issues normally spade connector on sensor, or dash not fully seated.
//Edit reason - TB had fat finger trouble!