I was parked outside my office a month ago with the vehicle on and noticed the oil pressure light came on. I mmeadiately took the car to a mechanic on the opposite side of the street. I came by 4 hours later and the mechanic said the light never came on the cars been on for 30 minutes. I still had oil, maybe 500 miles before I needed a change. 2 weeks after that it came on once again, this time coming on when the car was in idle and again in the morning. Took it back to the same guy and again no light, so I just ended up doing the oil change with a heavier oil this time. 2 weeks or today, the light came on. This time after my 5 mile commute home, but only while I was in park. This doesn't happen as I drive at any speed, the car drives perfect and the light seems to be coming on at random times but only while in idle. What's the best course of action? Popular Mechanic says it's the sensor, while many mechanics say it's the pump without actually checking my sensor...
My car has 134000 miles.
My car has an automatic transmission.
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