Low oil pressure at warm idle
May 18th, 2017, 4:52 PM
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Low oil pressure at warm idle
Having an issue with my Sunfire (I'm sorry if this post isn't allowed here, but it's the same engine as a cavalier so I figured I'd give it a shot, it's the 2.2) where after you've been driving for about 20 minutes, and come to a stop (in park or drive) the idle drops and low oil pressure idiot light comes on, sometimes erratically, sometimes stays on for a little until I give it some gas and get the RPMs back up a little. It has stalled out a couple times due to this issue.
Got a few video clips of the problem, just in case it gives you any other idea what the cause could be
This was when idling with the AC on in park (idle is very erratic with it on, I'm not giving it any gas at all here) https://www.dropbox.com/s/34g903h1keiqf75/idle%20with%20AC%20on.MOV?dl=0
This was also idling in park, but AC turned off (I put it in neutral and revved the engine a bit to get the light to go out) https://www.dropbox.com/s/m4ygcp860mvbnoz/idle%20no%20AC.MOV?dl=0
This was at a stoplight while in drive (also kicked it into neutral and revved again at the end of the clip) https://www.dropbox.com/s/6enxckl2jghu6vq/idle%20at%20stoplight.MOV?dl=0
Any help is seriously appreciated! Don't really wanna get rid of it as it's been pretty reliable for as old as it is (165k on the engine 174k on the body) plus the underside is almost rust free which is almost unheard of for a car this age in Pennsylvania and our frame-eating salted winter roads. I've changed the oil and filter (10W-30 full synthetic, fram filter) and it didn't change a thing, also tried to give the throttle body a little cleaning with some throttle body cleaner (not a very deep clean though, didn't take off the throttle body at all)
Got a few video clips of the problem, just in case it gives you any other idea what the cause could be
This was when idling with the AC on in park (idle is very erratic with it on, I'm not giving it any gas at all here) https://www.dropbox.com/s/34g903h1keiqf75/idle%20with%20AC%20on.MOV?dl=0
This was also idling in park, but AC turned off (I put it in neutral and revved the engine a bit to get the light to go out) https://www.dropbox.com/s/m4ygcp860mvbnoz/idle%20no%20AC.MOV?dl=0
This was at a stoplight while in drive (also kicked it into neutral and revved again at the end of the clip) https://www.dropbox.com/s/6enxckl2jghu6vq/idle%20at%20stoplight.MOV?dl=0
Any help is seriously appreciated! Don't really wanna get rid of it as it's been pretty reliable for as old as it is (165k on the engine 174k on the body) plus the underside is almost rust free which is almost unheard of for a car this age in Pennsylvania and our frame-eating salted winter roads. I've changed the oil and filter (10W-30 full synthetic, fram filter) and it didn't change a thing, also tried to give the throttle body a little cleaning with some throttle body cleaner (not a very deep clean though, didn't take off the throttle body at all)
