Fuel and Temp Gauge go on and off intermitently

The Autodata fuel injection manual provides those figures for the engine management temp. sensor and I think I have seen them in the Haynes repair manual.

The temp. gauge sensor values I have never seen because it is generally accepted the electrical temp. gauge isn't a gauge but an indicator and therefore doesn't need to be accurate.

If you had the correct figures it is a bit of a faff suspending the sensor and an accurate thermometer in cold water and heating it slowly and monitoring the temperature and resistance. Mostly a replacement sensor is so inexpensive it isn't worth the effort.

Ford used to supply different sensors so the gauge (indicator) could be calibrated more closely - so it was around halfway at normal working temperature, but Ford seemed to be the only one that needed calibrating...

In the case of incorrect reading that isn't corrected by a replacement sensor, the supply voltage to the gauge should be checked to ensure it is being regulated accurately to the correct voltage - I know of only two standard voltages (10 volts and 5 volts) but there might be others.

Yep, it sure sounds like your fuel filter.

Yes, could be fuel-check the fuel pressure with key on.

Thermostat is here and the sensor is screwed into the housing:



Please let me know if you have more questions, and thanks for using FixYa.

emissionwiz is wrong.
there is a voltage LIMITER located behind you gauge cluster.
Small silver box usually 4 numbers stamped on back with three wires out of it, yellow, blue, black.

it's possible you have a clogged fuel filer. change it out and try the thumb plugging again.

It sounds like you simply have a bad thermostat that is stuck open. I would replace that first, it's cheap. Make sure the coolant is topped up properly after you change it.

try some starting fluid. just spray it in the air filter box while someone turns it over.
fuel can go bad if it sets too long. the more fuel that was in there sometimes lasts longer. you may have to drain the tank and add some fresh fuel.

hi
im dave
not sure what you mean by powerloss. Do you mean electrical power or torque power?