Boduke88

Thank you for your replie OTHERS have told me that to I didnt mention it in the topic but its also lossing power

My 2013 Silverado has good oil pressure until it get to 210 temp around 50 to 60 psi then drops to 20 psi at idle I changed the oil pick up tube and o ring sending unit and screen put 10w30 oil in it removed valve covers to check for stuck lifters have not changed the oil pump yet I just would like to have some advice before I do the lifters do have a rattling sound reason I checked for stuck lifters and I have no check engine light on and low oil pressure light has never come on