Hello everyone, I own 06 Z with RevUp engine ( 20k mileage after full rebuild ). the problem is that on cold start pressure is good but when it's getting warm pressure goind down and when I am hitting accellerator pedal quickly pressure is going little down and then up. Is there anyone familiar with issue ?

 

Any noticable leaks?

 

How are you analyzing this decrease in pressure? Are you reading off the OEM oil pressure gauge?

 

I will ask the same question that bealljk proposes. If you are reading the oil pressure gauge in the car's instrument panel, it may not be giving you an accurate measurement. You may be experiencing a faulty oil pressure sender.

I had the problem you describe, and the fix was replacing the oil pressure sender unit.

 

Hello guys, Thanks for the response. I was reading within OEM Oil Pressure Sending Unit, then went to Engine mechanic and checked with mechanical oil pressure checking tool ( external gauge ) and reading was the same. So I am thinking it to be Oil Gallery Gaskets? what you think guys ?