Hi I have a 2006 Monte Carlo SS 5.3 Liter. When the car idles below 900rpm's I get 5 pounds of oil pressure and the lifter starts to tick. If I hit the gas and let it idle 900 or more it makes no noise and gets 50 pounds of oil pressure. The car runs perfect and everything works it just ticks when it idles! Thanks

I tried the Lucas oil stuff and it's not the sensor.

(Hopefully I posted this in the right spot)