I have a winding noise coming from engine and low oil pressure on 2004 Hyundai Santa Fe

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I got this car from sombody who did not take care of it I had to put new timing belt kit and crank senser ,all so changed oil senser and put 20/50 oil just to see if I could get the light to go off ,no luck
(1) Answer
Poss. timing belt to tight causing noise,as for oil light check press. with guage
screwed in where the oil sender goes.