Notices
Maintenance & Repair 350Z up keep and diagnosing/fixing problems

high oil pressure after oil change...

Thread Tools
 
Search this Thread
 
Old Nov 12, 2010 | 10:10 AM
  #21  
tylerxfire's Avatar
tylerxfire
Registered User
iTrader: (15)
 
Joined: Jul 2008
Posts: 3,817
Likes: 1
From: new york
Default

ive done more than enough work here..
Attached Thumbnails high oil pressure after oil change...-sensor.gif  
Reply
Old Nov 12, 2010 | 10:11 AM
  #22  
tylerxfire's Avatar
tylerxfire
Registered User
iTrader: (15)
 
Joined: Jul 2008
Posts: 3,817
Likes: 1
From: new york
Default

geez..might as well\ depending on year of vehicle this is the part

http://www.courtesyparts.com/25070-s...tml?cPath=714&
Reply
Old Nov 16, 2010 | 09:48 PM
  #23  
OkashiZ's Avatar
OkashiZ
Registered User
iTrader: (11)
 
Joined: Feb 2010
Posts: 1,121
Likes: 0
From: Long Beach
Default

this thread just made me feel a lot better same EXACT thing happened to me, glad i can fix it now, THANK YOU!!!!
Reply
Old Nov 16, 2010 | 10:25 PM
  #24  
Shawz1102's Avatar
Shawz1102
Registered User
iTrader: (1)
 
Joined: Jun 2010
Posts: 388
Likes: 0
From: San Gabriel, CA
Default

i'm just not sure why the PSI would display normal at warm idle (30 psi), but abnormal at high RPM (~110 psi) if it was a faulty sensor... if it was faulty, wouldn't it display weird numbers ALL around?

what's the optimal PSI for say 5k rpm?

Last edited by Shawz1102; Nov 16, 2010 at 10:27 PM.
Reply
Old Nov 19, 2010 | 03:30 PM
  #25  
2fastnc's Avatar
2fastnc
Registered User
iTrader: (1)
 
Joined: Sep 2010
Posts: 111
Likes: 1
From: North Carolina
Default

This is too weird....Mine did the same thing. Went to dealership had them put mobil 1 in it and the same thing with the oil pressure. At idle 30ish and when taking off heads toward the 120 mark. So whats the deal is it the sending unit or what? Whats also strange is that it was fine before the oil change. Stayed between 60 and maybe 80.....

With only having my 2006 350 Z roadster for 2 months now and reading all these things on oil consumpstion..... It seems like my new and shiney ride is starting to dull on me....
Reply
Old Nov 19, 2010 | 04:08 PM
  #26  
OkashiZ's Avatar
OkashiZ
Registered User
iTrader: (11)
 
Joined: Feb 2010
Posts: 1,121
Likes: 0
From: Long Beach
Default

nope, fixed mine today, idk why it does that but it does, its the sensor. mine was replaced under warranty this morning
Reply
Old Nov 20, 2010 | 01:24 PM
  #27  
OkashiZ's Avatar
OkashiZ
Registered User
iTrader: (11)
 
Joined: Feb 2010
Posts: 1,121
Likes: 0
From: Long Beach
Default

nope, scratch that. it was fine for the drive home, then today i started it back up and its high again. dang, now im on on a mission to figure it out lol, not the sensor, it something mechanical.
Reply
Old Dec 16, 2010 | 11:26 AM
  #28  
cmcurran5's Avatar
cmcurran5
New Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 1,560
Likes: 4
From: massachusetts
Default

im having kind of the same problem but on the other end. when i idle it drops to almost 0 and the oil light comes on. when i start driving it barely gets to the first notch. im about a 1000 away from a change so i dont know if thats the case. can it damage anything with low oil pressure??

also i pulled the stick and oil levels are fine on there..

Last edited by cmcurran5; Dec 16, 2010 at 11:38 AM.
Reply
Old Dec 16, 2010 | 11:43 AM
  #29  
OkashiZ's Avatar
OkashiZ
Registered User
iTrader: (11)
 
Joined: Feb 2010
Posts: 1,121
Likes: 0
From: Long Beach
Default

thats a whole nother problem.
Reply
Old Dec 16, 2010 | 12:03 PM
  #30  
cmcurran5's Avatar
cmcurran5
New Member
iTrader: (4)
 
Joined: Sep 2010
Posts: 1,560
Likes: 4
From: massachusetts
Default

Originally Posted by OkashiZ
thats a whole nother problem.
that didnt really help lol
Reply
Old Dec 16, 2010 | 02:02 PM
  #31  
tylerxfire's Avatar
tylerxfire
Registered User
iTrader: (15)
 
Joined: Jul 2008
Posts: 3,817
Likes: 1
From: new york
Default

i dont understand why someone would think that needing an oil change in the future would cause low oil psi...has nothing to do with it at all...if ur oil level is correct then that is not ur cause...i would be willing to bet it is the sensor just like above..try tapping the gauge as there have been a few people who had an actual faulty gauge...yes low oil psi is very very bad and u should not drive the car until figured out imo..that will cause a blown motor is no time
Reply
Old Dec 16, 2010 | 02:03 PM
  #32  
tylerxfire's Avatar
tylerxfire
Registered User
iTrader: (15)
 
Joined: Jul 2008
Posts: 3,817
Likes: 1
From: new york
Default

sensor isnt very expensive id swap it
Reply
Old Dec 16, 2010 | 03:32 PM
  #33  
OkashiZ's Avatar
OkashiZ
Registered User
iTrader: (11)
 
Joined: Feb 2010
Posts: 1,121
Likes: 0
From: Long Beach
Default

Originally Posted by cmcurran5
that didnt really help lol
Wasn't meant to help. Do a search and maybe you will get help. I'm not here to f-ing spoon feed you info bud. Nor is anybody else.
Reply
Old Dec 16, 2010 | 03:54 PM
  #34  
davidv's Avatar
davidv
Registered User
iTrader: (2)
 
Joined: Jun 2004
Posts: 42,753
Likes: 11
From: Tucson, AZ
Question

Originally Posted by B18CTOVQ35
i just got an oil change on my 06 Z. Iv noticed the oil pressure guage reads close to 120psi when im driving. at idle its fine but when i take off from a red light, its starts creaping up to the 120psi mark. I know this isnt normal cause usually it stays around the 60psi mark.

any one know whats wrong?
41 days. Have we seen a photo of HIGH oil pressure?

Last edited by davidv; Dec 16, 2010 at 03:55 PM.
Reply
Old Dec 19, 2011 | 05:06 PM
  #35  
Mike Anthony's Avatar
Mike Anthony
Registered User
iTrader: (1)
 
Joined: Jul 2011
Posts: 604
Likes: 0
From: Springfield, VA
Default

Sorry for bringing this back to life. But I have been having the exact same problem. Got my oil changed two days ago and now on a cold start it hits right on 120psi, and after warming up it will get down to 30psi like it used to. But if I get to 3500 rpm (after already being warmed up) it spikes past 120psi. Not sure what could be causing it. It was valvoline 5w30 that went in. I'm thinking maybe they damaged the sensor during the change? Beside that i don't really know what would cause that directly after an oil change. Has anyone had this problem and fixed it?
Reply
Old Dec 19, 2011 | 08:56 PM
  #36  
Itzcashew's Avatar
Itzcashew
Registered User
iTrader: (13)
 
Joined: Nov 2010
Posts: 1,421
Likes: 0
From: Houston
Default

Originally Posted by Mike Anthony
Sorry for bringing this back to life. But I have been having the exact same problem. Got my oil changed two days ago and now on a cold start it hits right on 120psi, and after warming up it will get down to 30psi like it used to. But if I get to 3500 rpm (after already being warmed up) it spikes past 120psi. Not sure what could be causing it. It was valvoline 5w30 that went in. I'm thinking maybe they damaged the sensor during the change? Beside that i don't really know what would cause that directly after an oil change. Has anyone had this problem and fixed it?
Buy the oil pressure sensor or just put electrical tape over the gauge and you'll find bliss in ignorance.
Reply
Old Dec 20, 2011 | 05:07 AM
  #37  
Mike Anthony's Avatar
Mike Anthony
Registered User
iTrader: (1)
 
Joined: Jul 2011
Posts: 604
Likes: 0
From: Springfield, VA
Default

I went the electrical tape route. You were right, it's like the problem was never there!
Reply
Old Dec 20, 2011 | 05:55 AM
  #38  
TurboBob's Avatar
TurboBob
Registered User
 
Joined: Aug 2008
Posts: 46
Likes: 0
From: St. Louis
Default

Here is the location of the pressure sensor. In the picture it is the one with the black connector.

high oil pressure after oil change...-vq35hr-oil-pressure-sensor.jpg

high oil pressure after oil change...-oil-pressure-switch.jpg
Reply
Old Jun 20, 2012 | 09:02 AM
  #39  
Fulton16's Avatar
Fulton16
Registered User
 
Joined: Apr 2012
Posts: 33
Likes: 0
From: STL
Default

when changing the sensor will this make a mess?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
XM 1
Engine & Drivetrain
29
Jul 10, 2022 07:44 AM
apex locator
Autocross/Road
10
Jul 23, 2021 02:27 AM
hajwoj
Autocross/Road
27
Nov 1, 2015 05:25 PM
EnjukuRacing
Engine
0
Sep 30, 2015 06:55 AM




All times are GMT -8. The time now is 09:25 PM.