Blocked oil passages and faults in the control wiring are most likely, however, in practice the way this is diagnosed is via a decision tree that is published in the factory service manual.
Not exact matches
How do I clean out the
oil galleries and other
passages in the
block without damaging the surface finishes?
A crack in between an
oil gallery and a coolant
passage either in the engine
block or the cylinder head (s).
It is possible that some
passages or filter is
blocked and the
oil pump is not able to pump enough
oil to build pressure.
Oil or Antifreeze entering the exhaust system can
block the air
passages by creating a heavy carbon soot that coats the ceramic catalyst.
Features like coolant
passages,
oil galleries, and
oil drain - back
passages were cast directly from the foam, eliminating the need to drill into a pre-formed cast
block.