At idle, my oil pressure fluctuates. Not a lot but it will go up and down like 4-5 points. It's rhythmic. Almost like the idle drops and goes back up but the idle doesn't. It's like every 3-4 seconds. Also, when it drops, I hear this faint squeaking noise. Not like a belt, like something needs oil, it's high pitched and only hear it on the oil pressure down swing. Can't tell where it's coming from. Under the hood, sounds like the front of the blower area. The blower has oil, the motor has oil.
I pulled the blower and intercooler last week to clean the IC. After that is when I noticed this. It may have been doing it before, in fact the oil pressure was doing it, I don't think the squeak was there with it though. Any ideas?
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