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watch that oil cooler seal! neighbor 4 qts low! #4629882
01/09/18 10:48 PM
01/09/18 10:48 PM
Joined: Jun 2009
Posts: 3,743
Chicago, IL
tomcat27 Offline OP
tomcat27  Offline OP
Joined: Jun 2009
Posts: 3,743
Chicago, IL
Nissan 3.5; neighbor complained that the check engine light was on. P0011. timing off on bank 1. hmmmm. pulled dipstick. 4 quarts low!!!
It was an easy repair: replace the o ring between the oil cooler and the block. supposedly book time is 1.2 hours. didn't take half that.


2019 Cherokee, 2018 Jetta, 2014 Sentra, 1995 Escort, 1970 Cougar, 2013 XT250, 2010 Vstar, 2014 CTX1300
Re: watch that oil cooler seal! neighbor 4 qts low! [Re: tomcat27] #4629905
01/09/18 11:31 PM
01/09/18 11:31 PM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
Joined: Jul 2017
Posts: 542
Texas (south)
That was a close one for your neighbor


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: watch that oil cooler seal! neighbor 4 qts low! [Re: tomcat27] #4629936
01/10/18 01:18 AM
01/10/18 01:18 AM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,825
Taiwan
Watch that dipstick might be more generally applicable advice, assuming you have got one.

Re: watch that oil cooler seal! neighbor 4 qts low! [Re: tomcat27] #4629989
01/10/18 05:59 AM
01/10/18 05:59 AM
Joined: Sep 2004
Posts: 21,915
Orlando, FL
Mr Nice Offline
Mr Nice  Offline
Joined: Sep 2004
Posts: 21,915
Orlando, FL
Are the piston rings shot ?

Re: watch that oil cooler seal! neighbor 4 qts low! [Re: tomcat27] #4630032
01/10/18 07:13 AM
01/10/18 07:13 AM
Joined: Apr 2008
Posts: 12,973
Onondaga County
Miller88 Offline
Miller88  Offline
Joined: Apr 2008
Posts: 12,973
Onondaga County
My replacement 5.4 is permanently noisey from that happening. Oil cooler went bad and it dumped 6 quarts of oil into both the coolant and out of the cooler itself while driving. Never had the oil light come on, but it was realllll low.


18 Forester 2.5I 6M
00 Jeep Cherokee
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Re: watch that oil cooler seal! neighbor 4 qts low! [Re: tomcat27] #4630083
01/10/18 08:12 AM
01/10/18 08:12 AM
Joined: Feb 2011
Posts: 6,753
Hudson, NH
LeakySeals Offline
LeakySeals  Offline
Joined: Feb 2011
Posts: 6,753
Hudson, NH
I acquired a free 03 Maxima with a 3.5L with the infamous busted radiator/tie bar support. When I got it the 3.5 was dangerously low on oil. I added 3.5 qts! There are a couple of leaks. One is the cam sensor o ring. Another is from the pan area. I assumed its the drain bolt washer. Could that possibly the o ring you describe??


06 Escalade 6.0L LQ9 AWD 165k M1 5w30
03 Maxima 3.5L POS 152k ST HM 10w30
Re: watch that oil cooler seal! neighbor 4 qts low! [Re: LeakySeals] #4630232
01/10/18 10:05 AM
01/10/18 10:05 AM
Joined: Apr 2017
Posts: 464
Utah, USA
28oz Offline
28oz  Offline
Joined: Apr 2017
Posts: 464
Utah, USA
Originally Posted By: LeakySeals
I acquired a free 03 Maxima with a 3.5L with the infamous busted radiator/tie bar support. When I got it the 3.5 was dangerously low on oil. I added 3.5 qts! There are a couple of leaks. One is the cam sensor o ring. Another is from the pan area. I assumed its the drain bolt washer. Could that possibly the o ring you describe??



The O-ring is behind the "oil cooler"......the round thingy that the oil filter screws onto. You remove the filter, then there's a big nut behind it (if memory serves correctly). The housing (oil cooler) is then able to move away from the block. There is a big O-ring behind it where it mates to the block. They tend to start leaking above 100k miles. Get the replacement from the dealer. They've been redesigned over the years and I think I only paid about $8 for it.

Edit: There are two rubber hoses that connect to the oil cooler. They contain coolant. Be careful with them..........unless you're replacing them also. Mine were oil saturated from the leaking O-ring, so I replaced mine.

Last edited by 28oz; 01/10/18 10:07 AM.

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1990 Nissan 300zx - Castrol Edge Euro 0W-40
2004 Nissan Quest - Pennzoil Platinum Euro 0W-40
2003 Ford Excursion 7.3 PSD - Mobil 1 TDT 5w-40

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