Yes, and when it does it must be replaced as it is defective.
It developed an leak and then for whatever reason sealed itself. Replace the oil pressure sending unit.
Yes,if the sending unit is the source of the leak.
Yes, it can leak at the sending unit.
Worn threads will cause this. Wrap your the threads on your oil pressure sending unit / switch with teflon tape, replace and tighten securely.
Low oil pressure or a defective oil pressure sending unit.Low oil pressure or a defective oil pressure sending unit.
No. Coolant should not leak from the oil sending unit. the unit's purpose is to send a pressure reading to a guage or, in case of a warning light, turn it on in the event of an unsafe drop in oil pressure. no anti-freeze coolant should come from this unit. if there is, you are most likely looking at the temperature switch or sending unit and not the oil sending unit. however.. if there is a mixture of coolant and oil comming from it that has a milky look to it then you have coolant seeping into your oil which indicates a blown head gasket, cracked or warped head, or a cracked block.
Engine seal? Valve cover? Oil pressure sending unit?
The 1986 Chevrolet Cavalier oil pressure sending unit can be found on the left-hand side of the engine. The oil pressure sending unit will be above the oil pan.
Were is the oil pressure sending unit on a 95 mitsubishi miaage
The oil pressure sending unit on a 2005 GMC Sierra
Oil pressure sending unit Where is it at on the engine
It could be many different things like the oil sending unit, the plug to the oil sending unit, oil leak (low oil), or the oil pump are the most likely causes. Most of the time if the oil level is fine it ends up being either the oil sending unit or the plug.