* Low oil pressure despite sufficient oil: The oil pump might be failing, a sensor might be faulty (oil pressure sensor), or there might be a leak somewhere in the system (even a small leak can cause this). A failing oil pump is a serious issue and requires immediate attention.
* Faulty oil pressure sensor: The sensor itself might be malfunctioning and giving a false low-pressure reading, even if the oil pressure is fine. This is a relatively inexpensive part to replace, but it needs diagnosis to confirm.
* Oil filter issue: While you changed the filter, it's possible it wasn't installed correctly, is blocked, or is the wrong type for your engine. Double-check the filter installation.
* Blocked oil passages: Internal engine damage (like sludge buildup) could be blocking oil passages, restricting oil flow even with sufficient oil. This is a more serious problem.
* Other engine issues: A more serious problem within the engine, such as a worn bearing or other internal component failure, could also cause low oil pressure.
What you should do:
1. Don't drive the van: Continuing to drive with this warning light on could cause serious engine damage. Low oil pressure means insufficient lubrication for vital engine parts, leading to potential catastrophic failure.
2. Have it professionally diagnosed: Take your van to a qualified mechanic or Ford dealership. They have the tools and expertise to properly diagnose the cause of the warning light. They can check the oil pressure directly, test the sensor, and inspect the engine for any other problems.
Ignoring this light is risky and could lead to costly engine repairs. Get it checked immediately.
