Recently purchased 72 Series 3. When i received it, the oil pressure light worked normally....on when ignition key turned, off a second or so after engine starts. Never flickered at low idle. It also has the oil pressure gauge, looks to read around 30-40lbs at cruising speed.
Just today, the oil pressure light came on, and stayed on at cruising speed, but the gauge still reads 30-40lbs as it did before. I checked, didn't see any loose wires. Engine temperature stays normal....
Think its a faulty sending unit? Any way to test?
Attached is picture of gauge reading.
thanks in advance.