Low oil pressure at Idle?
#1
03-30-2013, 05:41 PM
Low oil pressure at Idle?
Ok so after driving for about 30 minutes today i was waiting at a light and then my oil pressure gauge just went all the way down and my light came on. As soon as i started moving again it went away. This happens only at idle, if i give it a tiny bit of gas at idle my oil pressure goes back to normal. Any ideas guys? The engine is running like perfect and i have the right oil amount
#2
03-30-2013, 06:13 PM
Join Date: Apr 2010
Location: Mentor, Ohio
Posts: 12,156
First it is normal for the oil pressure to go low (not all the way) at idle and then increase as you give it gas.
Since you said it went all the way down, check and make sure the oil is to the appropriate level. Second, it might be the oil pressure sending unit failing. But make certain the oil level is right.
Since you said it went all the way down, check and make sure the oil is to the appropriate level. Second, it might be the oil pressure sending unit failing. But make certain the oil level is right.
#6
03-30-2013, 08:14 PM
Join Date: Jan 2011
Location: St.Louis , MO.
Posts: 7,523
Check your Oil pressure with a manual gauge ..Mine did that once . dealer checked mine with manual gauge it was low too.. They install a new engine in my monte because it spun a cam shaft bearing in the block..
#7
03-30-2013, 09:31 PM
The oil is at the right level, the oil was changed about 3-4000 kms ago with Synthetic 5w30. Not hearing any funny noises at all and engine runs like a top, no smoking or huge fuel consumption either.
#8
03-30-2013, 09:43 PM
Join Date: Jan 2011
Location: St.Louis , MO.
Posts: 7,523
I would hook up a manual gauge to make sure it's ok..
#9
04-01-2013, 10:44 AM
Ok so today driving it after about again 30 minutes or so it happened again but it would go down then go back up for a bit then go down and go back up. I found out if i just let off the brake and let the car move on its own the light goes away aswell. Could it be the sending unit?
#10
04-01-2013, 11:19 AM
Join Date: Apr 2010
Location: Mentor, Ohio
Posts: 12,156
My next though would be a possible sending unit. From my exerpience, those tend to fail around 130,000ish miles. It's not a very expensive part, so it should be an easy swap. If that does not solve it, you may be looking at a more serious problem.
You want to get this addressed sooner then later. If your engine is infact loosing pressure (assuming it's not a bad sensor read, that it really is having a pressure issue), oil starvation is a fast way to destorying a motor.
You want to get this addressed sooner then later. If your engine is infact loosing pressure (assuming it's not a bad sensor read, that it really is having a pressure issue), oil starvation is a fast way to destorying a motor.