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Message: <blockquote data-quote="JRad405" data-source="post: 849950" data-attributes="member: 14125">My stock oil pressure gauge isn't sitting in the normal. It is a little whacky. It will go from the middle of normal to low towards the "n" or "o" and then go back to the middle of normal and then the needle will move around sometimes. I changed my oil pressure sending unit and it didn't seem to help. I have no idea what to actually do from there. I'm thinking its a bad ground or the connecting piece needs to be cleaned because I have been driving my car for about 10k miles like that and I don't have a knock or piston slap or and other abnormal noise. And I don't lose oil either, but I don't know if that would be a symptom of low oil pressure.I read the oil pressure sensors are on/off switches so I was thinking that it could be just my gauge is just acting up due to age. Some of my pcv tubes are cracked around the grommets, could that cause low oil pressure? I will probably replace them anyway, unless my engine is completely screwed. Is there another way to tell if I'm running normal. I was thinking of running an autometer guage just to see where the pressure was sitting to know if I'm completely screwed or not.I really do think it is a bad ground but it will have to wait until Tuesday for me to check that? By the way where would the ground connector be for this?</blockquote>