You also need to know that there are two sensors, one is part of the fuel pump assembly and the other is a stand alone sensor mounted forward of the fuel pump assembly.The 1800 does not have a thermistor, the light is triggered by the level sensor reaching a certain resistance.
What is your symptom? One sensor moves the gauge from empty to half way and the other moves it from half to full. They work together to give the full scale reading.Anyone know whether you can buy thermistor for fuel gage and fuel level apparatus without buying the whole assemblies for each. If so, where?
There are two types.Not exactly. A thermistor heats up when the fuel level drops below it and the resistance decreases. A level sensors resistance increases the lower it gets.