2003 honda civic dx oil pressure light comes on and off
Just had oil changed 2 weeks ago. Oil pressure light keeps flickering on and off. Heard a rattling noise at top of rpm's when accelerating. Oil was 3 quarts low.Tailpipe has oil residue in it. No oil leaks under car. 105,000mi
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That a disaster oil light on that mean no oil pressure when you still drive with the light on the engine can seize up on you first check your oil civic use lots of oil you would not be the first one that hapen saw that dozen of time sorry about good luck pierre
There may be a misunderstanding here. Yes the warning light comes on when the oil pressure drops below 5psi. If the light comes on and the switch is working correctly, the oil pressure is not good. Any problem with the pump or the screen would make the pressure not good. If the oil pressure has been checked with a mechanical gauge and it is above 20psi, the switch or the wiring could be faulty. You would need to have the pressure checked to know.
You need to check the oil pressure. You need a analogue oil pressure guage to fit in the hole where the sensor is on the engine. It may need an adapter to make one fit. This will give you a correct oil pressure reading. Did you change the oil filter when you changed the oil?
Sounds like there is an oil pressure problem. Now this can be due to several factors. 1. low oil level in car
2. bad oil pump
3.bad oil pressure switch /sending unit
4. last but not least check oil filter and make sure its not clogged.
worn engine main/connecting rod bearings.
have pressure checked with a manual guage at oil pressure switch for the correct pressure. If that's good then the switch is bad and problem solved.
if it low then you will have to check pump and bearings. Contact if you need more help and thanks for using FIX YA