Oil pump

have a 1997 nissan pickup 2.4 liter 4cyl.with 181,000 mile.oil pressure light start blinking.what up.

WHEN does it blink?? Just at idle?? In any case, the oil PUMP is the LAST place to look for problems…

it blink when i start it up.

Have a mechanic check the oil pressure with a gauge. Maybe the oil pressure sender is bad, which is cheap to replace, but you can’t gamble on it. Test it and be sure.