Oil Light Flickers 2001 Mercury

2001-Mercury Cougar2001 Mercury 6 cyl oil light flickers on and off. It has new oil and has done this since last yr. I went through the car wash and it stop flickering?


The engine oil light flickering is generally caused from a faulty oil pressure sending unit. The sending units tend to leak and cause pour connection to the attaching wires. Going through the car wash may have helped the connection for the time being. Ultimately I recommend replacing the oil pressure switch.

Oil Pressure Switch – Oil Light Flickering


NOTE: High output engine shown, base engine not equipped with oil cooler.

  1. Raise and support the vehicle.
  2. Disconnect the oil pressure switch electrical connector.
  3. Remove the oil pressure switch.

oil pressure switch location - oil light flickers