What causes a heating and cooling gauge to stop working on a 2002 ford escort

SOURCE: ford escort...fuel guage

What year and was anything been done before the problem started?

SOURCE: temperature gauge in ford escort serenade

temp sensor near thermostat with a wire connector tells your gauge reading or go to salvage yard to replace your temp gauge..

SOURCE: 2002 ford escort zx2 camshaft sensor fit a 99 zx2?

Yes, All the years of the ZX2 utilize the same engine. 1998-2003 are all the same except for ECU programing and the MAF wiring. You should not have a problem.

SOURCE: When the car is filled up (Ford Escort ZX2) the

the fuel sender unit is a float system, sounds like the float has a hole in it, and has fuel inside, therefore the float will not rise to the top when the tank is full...
disconnect battery..locate sender unit on top of fuel tank,,( usually located under rear seat )....remove the float and clean thoroughly....then repair hole

SOURCE: Ford Escort cooling fan not working, Wiring

check the fuses there s also fuses in the engine bay,also check the wiring to the fan,the wires lead back to the main loom so if you are trying to trace the wire back its easier to take this out to check it but make a note of what connects to what.