0 oil pressure at idle
05-29-2010, 10:13 PM
#1
Registered User
Thread Starter
iTrader: (8)
Join Date: Jan 2008
Location: san antonio TX
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
0 oil pressure at idle
need some help. ive searched and have not found any answers or advice to my issue. i have an 08 with about 30k miles. noticed with my last oil change that at idle when car is warmed up that sometimes my oil pressure will peg at 0 and the red oil light will come on. if i give the car a little gas or turn on the ac the pressure goes back up to about 5-10. pressure while driving is steady at about 40-60. checked the oil level and its fine. im running valvoline full synthetic 5-30w. i have never had this issue until i tried valvoline. i guess my main question is could this problem be solely because of the type/weight of oil or is there a bigger issue and has anyone else with the HR had/has this problem too? any help or advice would help a lot. thanks
05-29-2010, 11:51 PM
#2
Registered User
Join Date: May 2009
Location: Phoenix, AZ
Posts: 347
Likes: 0
Received 0 Likes
on
0 Posts
It's a bigger issue, stop driving it and get it to the dealer. Usually these threads are "oh mah gawd, my oil pressure gauge is all outta whack yo" but yours seems legit and serious. The red oil light is a big deal, and if your pressures really are that low, you're causing some major damage at idle. Your pressure at driving speed seems fine, if not a little low (depending on your speed, which was not given). Your pressure should sit between 15 and 30 pounds at idle, or if you've been playing around a bit maybe 10 pounds, but i would get it to the dealer asap if the oil light comes on...
05-30-2010, 04:56 AM
#4
Registered User
iTrader: (17)
Join Date: Feb 2007
Location: Tampa,Fl
Posts: 1,115
Likes: 0
Received 0 Likes
on
0 Posts
It's a bigger issue, stop driving it and get it to the dealer. Usually these threads are "oh mah gawd, my oil pressure gauge is all outta whack yo" but yours seems legit and serious. The red oil light is a big deal, and if your pressures really are that low, you're causing some major damage at idle. Your pressure at driving speed seems fine, if not a little low (depending on your speed, which was not given). Your pressure should sit between 15 and 30 pounds at idle, or if you've been playing around a bit maybe 10 pounds, but i would get it to the dealer asap if the oil light comes on...
^^^^^^ this... if your car is starving for oil at idle you will most like spin a bearing. You might have something caught in your pick up or a failing oil pump... I would not drive it if I were you.
05-30-2010, 06:52 AM
#5
Registered User
FWIW, the oil pressure on my '08 actually went up a little at all speeds when I switched to Pennzoil Ultra full synthetic.
Fortunately, your car should still be under warranty. It'll be interesting to see what they do about your problem.
Fortunately, your car should still be under warranty. It'll be interesting to see what they do about your problem.
05-30-2010, 11:29 AM
#7
Registered User
Thread Starter
iTrader: (8)
Join Date: Jan 2008
Location: san antonio TX
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
the pressure drops to 0 for just a moment and it doesnt happen all the time. seems to do it more when ive been driving a while and its really hot outside. noticed it once also when i was stopped on a fairly steep incline. should i put my car back to stock before i take it in? i have high flow cats and exhaust. 
Trending Topics
05-30-2010, 11:39 AM
#9
Registered User
iTrader: (1)
Join Date: May 2005
Location: Maryland
Posts: 317
Likes: 0
Received 0 Likes
on
0 Posts
^ read these http://www.semasan.com/main/main.aspx?id=61713
No, you don't need to remove the cats and exhaust, they shouldn't have anything to do with the oil system and therefore wouldn't cause the problem.
Stop driving the car, get it towed to a dealer. Oil pressure being low and the light coming on at ANY point while driving should not happen. Something is definately wrong...
No, you don't need to remove the cats and exhaust, they shouldn't have anything to do with the oil system and therefore wouldn't cause the problem.
Stop driving the car, get it towed to a dealer. Oil pressure being low and the light coming on at ANY point while driving should not happen. Something is definately wrong...
Last edited by NightShade; 05-30-2010 at 11:45 AM.
05-30-2010, 04:10 PM
#10
^ read these http://www.semasan.com/main/main.aspx?id=61713
No, you don't need to remove the cats and exhaust, they shouldn't have anything to do with the oil system and therefore wouldn't cause the problem.
Stop driving the car, get it towed to a dealer. Oil pressure being low and the light coming on at ANY point while driving should not happen. Something is definately wrong...
No, you don't need to remove the cats and exhaust, they shouldn't have anything to do with the oil system and therefore wouldn't cause the problem.
Stop driving the car, get it towed to a dealer. Oil pressure being low and the light coming on at ANY point while driving should not happen. Something is definately wrong...
The dealership has to be able to prove beyond a reasonably doubt that the modifications made to the car have caused the complication. As with you're car, the exhaust mods have nothing to do with the oil flow through the motor.
05-31-2010, 12:41 PM
#12
I can/have doubled oil pressure at idle depending on the oil used. Use a 40 weight oil for high temps (try Mobil 1 0W-40 and pressure should not drop below 20 at idle even when really hot). I would be concerned you have a blockage/restriction somewhere in your oiling system though that is causing loss of pressure of your very thin oil when hot.
05-31-2010, 01:34 PM
#13
Registered User
iTrader: (3)
Join Date: Oct 2007
Location: san antonio,tx
Posts: 1,520
Likes: 0
Received 0 Likes
on
0 Posts
If your planning to go to GUn nisson on 281 bring a copy of what one of the members posted because they will try to get out of any work possible. Also, i been having weird things with oil (burning oil smell )but im going to wait till i change my oil to something else to see if that the problem. Hey, at least you dont get a faint oil smell almost every time you drive.
05-31-2010, 02:29 PM
#14
Registered User
Join Date: May 2008
Location: San Antonio, Tx
Posts: 34
Likes: 0
Received 0 Likes
on
0 Posts
I have a 08 as well with same problem oil light did not come on but at idle it will be just a little over 0 when I turn on the A/C it goes to 30. Took it to Gunn Nissan and they checked my oil psi and said it was fine but is still doing the same thing.i think it is a bad sensor pm me if you want to go to the dealership together to see whats up with this issue.
05-31-2010, 02:41 PM
#15
Registered User
iTrader: (3)
Join Date: Oct 2007
Location: san antonio,tx
Posts: 1,520
Likes: 0
Received 0 Likes
on
0 Posts
Well my Z i would have to take off some stuff before i went to the stealership (mine a 07). So im trying to leave that as a last option because they gave me hell when i went to complain about the csc issue. They gave me a ******** story that my number falls under the recall numbers but not the months???? total bs. so i have to be care full when i go to the track because if i launch to hard my clutch pedal sticks :/. I would recommend the infinity dealer ship on I-10 because of a cool mechanic that works there. but he also works at a place on judson road across from the walmart, the place is called JSM Racing.
05-31-2010, 03:28 PM
#16
My oil pressure regularly drops down to 0, when the engine is off, after a couple of minutes. I am running Royal Purple straight 30 weight, should i be alarmed???
read these http://www.semasan.com/main/main.aspx?id=61713
No, you don't need to remove the cats and exhaust, they shouldn't have anything to do with the oil system and therefore wouldn't cause the problem.
I was thinking about this same thread, glad somebody posted it up for you.
read these http://www.semasan.com/main/main.aspx?id=61713
No, you don't need to remove the cats and exhaust, they shouldn't have anything to do with the oil system and therefore wouldn't cause the problem.
I was thinking about this same thread, glad somebody posted it up for you.
05-31-2010, 04:54 PM
#17
^ummm, when the engine is off, everyone's oil pressure goes to 0. I presume you meant on and hot. If there is very little resistance to flow due to decreased viscosity, it is possible to have flow with very little pressure. The ability of the sensor to detect single digit pressure may also be a factor. I would just run Mobil 1 0W-40 with the knowledge that at idle it will never get thin enough that you should even get into the teens, let alone single digits. A used oil analysis (e.g. from Blackstone) can give you an idea if the oil is not fit for purpose.
Last edited by rcdash; 05-31-2010 at 04:58 PM.
