2007 Mazda 6 3.oL V6... Just had my engine replaced, and now the oil pressure light comes on at idle/low rpms. I've heard that it could be main bearings, failing oil pump, clogged oil port, or the oil pressure switch. How can I discern which of these would be the most likely culprit?
My car has 148000 miles.
My car has an automatic transmission.
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