2003 natural aspirated 3.3
I don't know if it's a sensor going bad or if there is a need for me to check the oil. Is it a oil pressure light or a check oil light?
Oil pressure does not decrease relative to decrease in oil level. The oil pump pickup is designed to be positioned below the "full" level of oil in the oil pan such that normal operation of the vehicle [stopping, turning and accelerating] does not allow the g-forces of these conditions to allow the oil pump pickup to rise above the level of the oil that has now been displaced in the oil pan. If the oil pump pickup looses contact with the oil it can no longer maintain a constant oil pressure to the system of bearings and monitoring sensors. Your symptom of a momentary flicker of the oil pressure monitoring light suggests a possible loss of oil pressure. If your oil level has been allowed to be diminished below standards it is possible that momentary losses of oil pressure can occur as the oil volume is forced away from the pickup when physical forces are placed on the oil volume. Far too often I have checked other peoples vehicles for oil condition and level, only to find there is "no" oil whatsoever touching even the tip of the dipstick. I do not suggest this is your case.And oil pressure decreases w lower oil level.. correct?
That's called windage. The nose diving didn't help matters, but the act of braking is what forced a lot of the oil to the front of the pan. The same way that you and your passengers lean forward and lock up the seat belts in an emergency braking maneuver. If the oil is low enough, that shift will momentarily starve the pump, which is not good. I hope your rig didn't suffer from it.Had a similar thing happen to me when I bought my X. Didn't check the fluid levels right after buying it and had to do some hard breaking headed into Philly. Light came on as the nose angled down while breaking, then went off once I leveled back out. Probably starved the oil pump when all the fluid shifted.