bad gasket
Could be gas in the oil causing low or no compression.
filter? cracked hose?
It depends on where the leak is and what is causing the leak.
There is an aluminum plate between the water pump and the block. For some reason, after time, they all start to leak in the Ford Bronco II. They leak the antifreeze into your oil, causing the problem and eventually it will ruin your motor. You need to replace the plate, but it's really expensive and requires pulling the motor.
The high pressure oil lines on top of the motor under the fuel and water separator are rubbing together and causing holes
if you have a carburated engine the float may be too low or has sprung a leak and sinks in the bowl causing overflow or a leaking injector
oil gallery plug not installed or a bad oil filter bypass valve
Sounds like a possible oil pan gasket leak, also check around the oil filter and make sure that it seated properly when it was installed.
Wrong size filter for the engine, filter too tight or too loose, filter has a hole in it, or gasket not oiled before installation thus causing it to leak. The old gasket could have been left on the engine thus causing a leak with 2 gaskets installed.
Hi, the oil pressure switch is located just above the starter, if it breaks out comes the oil ! Dave
If the leak is large enough, all of the oil could leak out in minutes.
There is only one way. Find the leak and repair whatever is causing the leak. Bad gasket, seal, or broken part, whatever.