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0 oil pressure for 10 seconds #4620415
01/01/18 10:52 AM
01/01/18 10:52 AM
Joined: Oct 2017
Posts: 566
Northeastern Vermont
littleant Offline OP
littleant  Offline OP

Joined: Oct 2017
Posts: 566
Northeastern Vermont
Happy New Year. Well had to use the 02 jeep this morning. It was -32. Nose of jeep was pulled in the garage a little. Went to start and it turned over slow but did start. Was watching oil gauge and it showed O for about 10 seconds. Then a light came on beeping check gauges. Then the gauge started showing pressure and light went out. Never knew this light was even there in 6 years. Jeep has the 4.0. Just serviced about a month ago with valvoline maxlife 5w30 SB and added a little zinc and 1/4 bottle of lubro moly mos2 and motorcraft FL-1A. Does it sound like the adbv did not open quick enough. This is a top thread adbv. Your opinions are appreciated.


I can't prevent getting old but I REFUSE to grow up.
2010 Mountaineer 4.0
2002 Jeep Wrangler TJ 4.0
Re: 0 oil pressure for 10 seconds [Re: littleant] #4620426
01/01/18 11:01 AM
01/01/18 11:01 AM
Joined: Mar 2017
Posts: 8,306
...
PimTac Offline
PimTac  Offline

Joined: Mar 2017
Posts: 8,306
...
At those temps I would be using a block or pan heater. How was the engine noise on startup and for the first moments?


Cannot see signatures any longer so it doesn’t matter.
Re: 0 oil pressure for 10 seconds [Re: littleant] #4620433
01/01/18 11:08 AM
01/01/18 11:08 AM
Joined: Sep 2013
Posts: 10,909
Indiana
dlundblad Online happy
dlundblad  Online Happy

Joined: Sep 2013
Posts: 10,909
Indiana
I had the same thing with my Jeep in -27*F. 10w30 PYB and a Mopar filter.

First time I heard the check gauges chime too.

I am assuming you mean the bypass as opposed to the ADBV. I am sure both functioned properly given the conditions. -32* (be it *F or *C) is cold!

Last edited by dlundblad; 01/01/18 11:08 AM.

03 Jeep WJ 4.0 202k Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 186k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 153k Synpower 5w30 Supertech ST3980 (Ecore)

Re: 0 oil pressure for 10 seconds [Re: littleant] #4620446
01/01/18 11:17 AM
01/01/18 11:17 AM
Joined: Jan 2009
Posts: 14,129
Illinois
tig1 Offline
tig1  Offline

Joined: Jan 2009
Posts: 14,129
Illinois
This is an example of slow oil flow in extreme cold temps. Perhaps changing to a 0-30 would help.


2007 Ford Fusion 239,000 miles
M1 0-20 EP
2017 Ford Fusion 67K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and Valvoline LV
M1 10-30 in all OPE
MC filters

Re: 0 oil pressure for 10 seconds [Re: littleant] #4620447
01/01/18 11:19 AM
01/01/18 11:19 AM
Joined: Oct 2008
Posts: 2,481
Dallas, Texas
SuperDave456 Offline
SuperDave456  Offline

Joined: Oct 2008
Posts: 2,481
Dallas, Texas
Maxlife is a synthetic, but it's pour point is -40 degrees F if I remember correctly.
-32 F is getting close to that.

+1 for some kind of block heater.
BTW, Even if it is just a shop lamp with an old school 60 watt incandescent bulb placed under the oil pan 20 minutes before driving, I've heard of such measures significantly helping at such temperatures.

Re: 0 oil pressure for 10 seconds [Re: littleant] #4620453
01/01/18 11:23 AM
01/01/18 11:23 AM
Joined: Dec 2017
Posts: 9
Costa Rica
CostaCaptain Offline
CostaCaptain  Offline

Joined: Dec 2017
Posts: 9
Costa Rica
-32f is exactly freezing point and as the Jeep was with the nose in the garage engine temp was probably a tad higher.
I would exclude something frozen excepth the oil pressure sensor get stuck for some seconds.
The ADBV (Anti Drain Back Valve)avoid that the oil drain back to the sump and should keep the oil in some parts of the upper part of the engine.
If the valve would be stuck close then the oil pressure would rise fast, if she is stuck open then all the oil drians back in the sump and
the oil pump has to fill all oil conducts after every start.

However, if the oil pressure is really near zero for 10 seconds than that's not a good thing!
As long the oil pump is good and sucking oil she should build up pressure much quicker.

Chris

Re: 0 oil pressure for 10 seconds [Re: littleant] #4620458
01/01/18 11:27 AM
01/01/18 11:27 AM
Joined: Oct 2017
Posts: 566
Northeastern Vermont
littleant Offline OP
littleant  Offline OP

Joined: Oct 2017
Posts: 566
Northeastern Vermont
The jeep always had a light piston slap when I purchased 6 years ago with 55,000 now have 168,000 miles. Once engine is warm no slap at all. This morning there was no more noise then usual (actually a little less). Dead quite when warm and driving. Use to run maxlife 5w30 conventional or Quaker state defy 5w30 conventional. Now both are synthetic blend and was a little more noisy. That is why I add the little zinc and moly.


I can't prevent getting old but I REFUSE to grow up.
2010 Mountaineer 4.0
2002 Jeep Wrangler TJ 4.0
Re: 0 oil pressure for 10 seconds [Re: PimTac] #4620461
01/01/18 11:28 AM
01/01/18 11:28 AM
Joined: Oct 2017
Posts: 566
Northeastern Vermont
littleant Offline OP
littleant  Offline OP

Joined: Oct 2017
Posts: 566
Northeastern Vermont
Originally Posted By: PimTac
At those temps I would be using a block or pan heater. How was the engine noise on startup and for the first moments?
The jeep always had a light piston slap when I purchased 6 years ago with 55,000 now have 168,000 miles. Once engine is warm no slap at all. This morning there was no more noise then usual (actually a little less). Dead quite when warm and driving. Use to run maxlife 5w30 conventional or Quaker state defy 5w30 conventional. Now both are synthetic blend and was a little more noisy. That is why I add the little zinc and moly.


I can't prevent getting old but I REFUSE to grow up.
2010 Mountaineer 4.0
2002 Jeep Wrangler TJ 4.0
Re: 0 oil pressure for 10 seconds [Re: littleant] #4620464
01/01/18 11:30 AM
01/01/18 11:30 AM
Joined: Nov 2013
Posts: 880
Central Coast California
RedOakRanch Offline
RedOakRanch  Offline

Joined: Nov 2013
Posts: 880
Central Coast California
At that temp I'm pretty sure you had no oil for those 10 seconds.


1994 Ford Crown Vic 207k-Frankenbrew 0w20,30,40!
2005 Chevy 1500 Crewcab 4X4 180k-BC 0w30 $2/qt
2016 Outback 2.5 Limited 60k-shop brand?
Re: 0 oil pressure for 10 seconds [Re: littleant] #4620490
01/01/18 11:55 AM
01/01/18 11:55 AM
Joined: Jan 2015
Posts: 984
missouri
ragtoplvr Online content
ragtoplvr  Online Content

Joined: Jan 2015
Posts: 984
missouri
What oil you did have on the bearings would be more the consistency of a very light grease. It is doubtful anything was harmed. The anti drainback valve probably did not seal and allowed the oil galleys to drain. You would have had some flow to the bearings before the gauge could respond. Cold weather is hard on equipment, and the automakers test for it. I have heard they test at -40 if the winter lets them.

Rod

Re: 0 oil pressure for 10 seconds [Re: littleant] #4620504
01/01/18 12:14 PM
01/01/18 12:14 PM
Joined: Feb 2003
Posts: 8,087
Jupiter, Florida
Cujet Online content
Cujet  Online Content

Joined: Feb 2003
Posts: 8,087
Jupiter, Florida
Way too cold for that oil. There is no telling whether damage happened or not. Might depend on the last shutdown and how hot it was. Remember even with pressure indicated, many components may not have flow. Such as the bearings farthest from the filter. As the rod bearings get flow through the main bearings and drilled passages on the crank.


People who count on their fingers should maintain a discreet silence.
Re: 0 oil pressure for 10 seconds [Re: tig1] #4620506
01/01/18 12:15 PM
01/01/18 12:15 PM
Joined: Mar 2017
Posts: 8,306
...
PimTac Offline
PimTac  Offline

Joined: Mar 2017
Posts: 8,306
...
Originally Posted By: tig1
This is an example of slow oil flow in extreme cold temps. Perhaps changing to a 0-30 would help.




Tig1 has a good suggestion here. Being that the OP is in Vermont, cold winters are the norm perhaps not this cold but nonetheless. Having a heater just helps the engine.

Someone else mentioned that -31F is just freezing. I would rethink that.


Cannot see signatures any longer so it doesn’t matter.
Re: 0 oil pressure for 10 seconds [Re: PimTac] #4620516
01/01/18 12:27 PM
01/01/18 12:27 PM
Joined: Oct 2017
Posts: 566
Northeastern Vermont
littleant Offline OP
littleant  Offline OP

Joined: Oct 2017
Posts: 566
Northeastern Vermont
Agree Tuesday will look for a block heater. These temps will continue through this and next week. Heck we haven't even gotten to the cold months yet


I can't prevent getting old but I REFUSE to grow up.
2010 Mountaineer 4.0
2002 Jeep Wrangler TJ 4.0
Re: 0 oil pressure for 10 seconds [Re: littleant] #4620532
01/01/18 12:44 PM
01/01/18 12:44 PM
Joined: Nov 2017
Posts: 93
SC, USA
Bxnanaz Offline
Bxnanaz  Offline

Joined: Nov 2017
Posts: 93
SC, USA
Originally Posted By: littleant
Agree Tuesday will look for a block heater. These temps will continue through this and next week. Heck we haven't even gotten to the cold months yet


You really should also look into some full syn 0w-30 as well.

Re: 0 oil pressure for 10 seconds [Re: littleant] #4620538
01/01/18 12:48 PM
01/01/18 12:48 PM
Joined: Dec 2017
Posts: 9
Costa Rica
CostaCaptain Offline
CostaCaptain  Offline

Joined: Dec 2017
Posts: 9
Costa Rica
sorry but i may missunderstood, you are talking of -32F and that is -35 celsius.
Yes, this is cold and may explain the low oil pressure.
If temp drops frequently so low then a block heater would be a good solution, and a 0W-40 oil will aso help with cold start.
Chris

Last edited by wwillson; 01/03/18 08:46 PM. Reason: censor bypass
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