G35 Sedan V36 2007- 08 Discussion about the 2nd Generation G35 Sedan 2007 - 08

no oil pressure at idle, 222K miles, advice?

Thread Tools
 
Search this Thread
 
Rate Thread
 
  #1  
Old 08-06-2019, 11:24 AM
Sieveboy's Avatar
Registered User
Thread Starter
Join Date: Sep 2007
Posts: 46
Received 3 Likes on 1 Post
no oil pressure at idle, 222K miles, advice?

Hi, I have a 2007 G35X, 222,000 miles, bought new. Oil changed properly the whole time.

It's now got about 7 psi of oil pressure at idle when hot. Pressure light is on. Goes away with rpm increase.

I took it to a mechanic who put a mechanical oil pressure gauge on the engine through the port where the oil pressure sender is attached.

He advises just drive it, put it in neutral at lights, air-conditioning off, it may last a while as I shop for a new car. He says its probably not even the pump but a combination of things most likely bearing clearances. Pretty much what I expected. I drained the oil and put in 10W-40 and still the same.

Anything else I should do? Any recommendations?

Thanks
 

Last edited by Sieveboy; 08-06-2019 at 12:41 PM. Reason: clarity
  #2  
Old 08-06-2019, 11:54 AM
Pbfoot's Avatar
Registered User
Join Date: Nov 2018
Posts: 231
Received 24 Likes on 22 Posts
04 G35 Sedan performance package. 70k Eibach springs and sway bars. 19 inch wheels. Plenum spacer.
[QUOTE=Sieveboy;7173595]Hi, I have a 2007 G35X, 222,000 miles, bought new. Oil changed properly the whole time.

It's now got about 7 psi of oil pressure at idle when hot. Pressure light is on. Goes away with rpm increase.

I didn't have a mechanical oil pressure gauge, so took it to a trusted mechanic.

He advises just drive it, put it in neutral at lights, air-conditioning off, it may last a while as I shop for a new car. He says its probably not even the pump but a combination of things most likely bearing clearances. Pretty much what I expected. I drained the oil and put in 10W-40 and still the same.

Anything else I should do? Any recommendations?

So he checked with a mechanical gauge?
 
  #3  
Old 08-06-2019, 12:09 PM
cleric670's Avatar
BANNED!!!

Join Date: May 2017
Location: Washington State
Posts: 14,817
Received 2,473 Likes on 2,164 Posts
Coupe 6MT Premium RAS
Could also be the galley gaskets.

Check out this thread for some ideas on where to start. I highly doubt the mechanic installed a mechanical gauge but maybe he did? Definitely verify and if he did NOT then you probably should have an electric gauge and a new sender at minimum. Preferrably a mechanical.

https://g35driver.com/forums/v36-diy/444884-checking-your-oil-pressure.html
 
  #4  
Old 08-06-2019, 12:40 PM
Sieveboy's Avatar
Registered User
Thread Starter
Join Date: Sep 2007
Posts: 46
Received 3 Likes on 1 Post
sorry for the confusion, he installed a Snap-On mechanical oil pressure gauge to the port where the sending unit is and it read 7 psi at warm idle
 
  #5  
Old 08-06-2019, 03:01 PM
cleric670's Avatar
BANNED!!!

Join Date: May 2017
Location: Washington State
Posts: 14,817
Received 2,473 Likes on 2,164 Posts
Coupe 6MT Premium RAS
Ok, galley gaskets are a definite cause of low oil pressure. Do you have any trouble codes?, Typically there will be a P0021 / P0011 codes along with it because the cam actuators aren't working with low oil pressure.
 
  #6  
Old 08-07-2019, 01:28 PM
Sieveboy's Avatar
Registered User
Thread Starter
Join Date: Sep 2007
Posts: 46
Received 3 Likes on 1 Post
Car is not throwing any codes from what I can tell - no lights are on other than the oil light
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
cfauvel
Engine, Drivetrain & Forced-Induction
13
10-31-2016 09:14 AM
Schuma3955
G35 Sedan V36 2007- 08
18
01-26-2012 06:03 PM
bythabay
G35 Sedan V35 2003-06
1
05-13-2006 05:31 PM
Wanchu83
The G-Spot
1
01-12-2006 04:46 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: no oil pressure at idle, 222K miles, advice?



All times are GMT -4. The time now is 03:54 PM.