There have been a number of persons asking about oil level warning lights and even engine no-run asoociated with them. Not knowing much about them I have looked at information which I now share and ask you really experienced people to respond:
Cars: About half the sensors are solid state capacitance based which are expensive . They work off of electronic signals which are created in tubes and fed to the gauges.
The others seem to be float type where a tube containing reed switches has an external vertical float which opens and closes-much simple and cheaper e.g. GM $50.
Small Engines: Some (Honda) "look" like solid state, but no working description. One Honda unit looks like it simply bolts on externally and has a little can with the electricals (electronics) inside. Others "look" like they might also be float/reed switch design.
A China website is full of the vertical float style and also one side mount style . These are for all fluids. (not recommending these, but they do describe operation).
Summary: For forum members who have flickering dash lites and "engine dies," it seems sensors should be accessible from either the side of the engine or beneath the sump.
Please people, don't die with a secret. Tell us whacha know.
Cars: About half the sensors are solid state capacitance based which are expensive . They work off of electronic signals which are created in tubes and fed to the gauges.
The others seem to be float type where a tube containing reed switches has an external vertical float which opens and closes-much simple and cheaper e.g. GM $50.
Small Engines: Some (Honda) "look" like solid state, but no working description. One Honda unit looks like it simply bolts on externally and has a little can with the electricals (electronics) inside. Others "look" like they might also be float/reed switch design.
A China website is full of the vertical float style and also one side mount style . These are for all fluids. (not recommending these, but they do describe operation).
Summary: For forum members who have flickering dash lites and "engine dies," it seems sensors should be accessible from either the side of the engine or beneath the sump.
Please people, don't die with a secret. Tell us whacha know.
