when i start my 2003 chevy impala 3.4 engine the low oil light comes on after about 30 seconds the light turns off. i have change the oil and replaced the sending units still no change

Asked by Oct 21, 2015 at 07:32 PM about the 2003 Chevrolet Impala

Question type: Maintenance & Repair

low engine light comes on after I start the car it turns off after about 30 seconds. I have change the oil and filter and the oil sending unit still no change.

1 Answer


Is the car parked on an incline? The sensor for this is like a stick that's screwed into the side of the oil pan with a 2 wire electrical connector plugged onto it. If it's not submerged in oil the light will come on. Since the wiring and plug sits down low it's possible that something got kicked up while driving and damaged the connector. Inspect it carefully. If the connector is loose or unplugged the light will come on as well. HTH. -Jim

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