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Oil causing problems in VVT engines #4400467
05/09/17 06:59 PM
05/09/17 06:59 PM
Joined: Nov 2009
Posts: 1,057
Warner Robins, GA
nwjones18 Offline OP
nwjones18  Offline OP
Joined: Nov 2009
Posts: 1,057
Warner Robins, GA
Recently my STS V8 began throwing several camshaft position sensor codes and having clattering/rattling noises that would appear under acceleration then go away at idle (I assume noise was when the VVT was trying to kick in I don't claim to fully understand how it works). I could not find a problem, but the noise was very concerning so I took it to my local mechanic and he said the oil was dirty and changed it. I've put 20 miles on it since picking it up with no noise or CEL, which was coming on within the first couple miles before. I can confirm that the oil looked extremely dirty on the dipstick, but had only 5k miles on it over the last 13 months (oil/filter in signature). Has anyone heard of anything like this? I'd love to have been able to cut open that filter but it was already gone. Just curious if this sounds as unbelievable to anyone else as it does to me. BTW oil was right on the full line.


1988 F-150. 4.9 I6 247k. 10w-40 Castrol Syn-blend ACDelco UPF2.
2005 Cadillac STS N* 108k. 5w-30 Castrol Magnatec ACDelco Classic PF61
Re: Oil causing problems in VVT engines [Re: nwjones18] #4400474
05/09/17 07:06 PM
05/09/17 07:06 PM
Joined: Mar 2015
Posts: 10,822
In the shop
53' Stude Offline
53' Stude  Offline
Joined: Mar 2015
Posts: 10,822
In the shop
I believe it. My 2008 Camry I believe has VVT but don't hold me to that. I use 5w30/10w30 without issues and no valvetrain noise. I attribute that to using FRAM ULTRA or MC filter wink


09' Camry LE, 141,020 miles

PP 5w30 and TG 4967
Re: Oil causing problems in VVT engines [Re: nwjones18] #4400476
05/09/17 07:08 PM
05/09/17 07:08 PM
Joined: Nov 2015
Posts: 1,462
KingCake Offline
KingCake  Offline
Joined: Nov 2015
Posts: 1,462
Yes...oil level and quality greatly affect VVT systems. Both the solenoids and phasers. This is common knowledge. I suggest using a better filter like Fram Ultra. That might help. Your engine might have excessive blow by.

Re: Oil causing problems in VVT engines [Re: nwjones18] #4400499
05/09/17 07:35 PM
05/09/17 07:35 PM
Joined: May 2015
Posts: 965
Missouri
gabriel9766 Offline
gabriel9766  Offline
Joined: May 2015
Posts: 965
Missouri
If it has the 3.6L they are bad for chain stretching if run low on oil and extended oil changes.


2015 Malibu LT 2.5L PPPP 0w20 46.1K
2007 Escape XLT 3.0L 5Q STHM 5w30/1Q MC full syn 5W20 115K
2010 Fusion SE 2.5L MC 0w20 110K
2008 Escape XLT 2.3L MC 5w30 187K
2007 Fusion SE 2.3L- 173.5K STHM 0W20
Re: Oil causing problems in VVT engines [Re: nwjones18] #4400505
05/09/17 07:45 PM
05/09/17 07:45 PM
Joined: Dec 2013
Posts: 2,190
Fort Worth, Texas
clinebarger Offline
clinebarger  Offline
Joined: Dec 2013
Posts: 2,190
Fort Worth, Texas
Originally Posted By: gabriel9766
If it has the 3.6L they are bad for chain stretching if run low on oil and extended oil changes.


It's a RWD VVT 4.6L Northstar.

Without a UOA....You don't know what condition the oil was in.


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/Auto
Re: Oil causing problems in VVT engines [Re: nwjones18] #4400640
05/09/17 10:44 PM
05/09/17 10:44 PM
Joined: Aug 2010
Posts: 1,025
pa
benjy Offline
benjy  Offline
Joined: Aug 2010
Posts: 1,025
pa
although your miles were not high your oil was in too long! 6 months is a good time frame especially if doing short runs where engine never warms enough to burn off moisture or any gas in the oil

Re: Oil causing problems in VVT engines [Re: nwjones18] #4400689
05/10/17 01:29 AM
05/10/17 01:29 AM
Joined: May 2012
Posts: 5,383
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline
Joined: May 2012
Posts: 5,383
Fort Lauderdale, FL
Shearing down in grade can affect the effectiveness of the oil as a hydraulic fluid for the VVT system.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: Oil causing problems in VVT engines [Re: nwjones18] #4400733
05/10/17 05:47 AM
05/10/17 05:47 AM
Joined: Nov 2009
Posts: 1,057
Warner Robins, GA
nwjones18 Offline OP
nwjones18  Offline OP
Joined: Nov 2009
Posts: 1,057
Warner Robins, GA
I've had the car 5 years and have always done an annual oil change on it so it was due, only reason I didn't do it before taking it to the shop is I figured whatever work they were going to have to do would involve an oil change. Go figure. My driving is 50/50 city/highway and the OLM was at 57%. I believe GM recommends annual regardless of what the OLM says. I'm just surprised that I was using good oil (car holds 7.5qts) and a good filter with reasonable mileage and had an issue.

Re: Oil causing problems in VVT engines [Re: DoubleWasp] #4400758
05/10/17 06:32 AM
05/10/17 06:32 AM
Joined: Oct 2008
Posts: 19,091
Sunny Florida
SteveSRT8 Offline
SteveSRT8  Offline
Joined: Oct 2008
Posts: 19,091
Sunny Florida
Originally Posted By: DoubleWasp
Shearing down in grade can affect the effectiveness of the oil as a hydraulic fluid for the VVT system.


Yes, it causes nebulous "effects", but nothing is usually harmed.

Most oil actuated VVT setups have an extremely wide tolerance of different oil grades. May engage sooner/later but always seem to work


"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix
Re: Oil causing problems in VVT engines [Re: nwjones18] #4400898
05/10/17 09:49 AM
05/10/17 09:49 AM
Joined: Feb 2011
Posts: 6,719
Hudson, NH
LeakySeals Offline
LeakySeals  Offline
Joined: Feb 2011
Posts: 6,719
Hudson, NH
My old Camry had the stuck lock pin VVT issue plaguing many Toyotas. The infamous startup rattle, out of phase, etc. The controllers get plugged up if you don't change the oil on time, use a quality oil. And stay on the thin side. the veins are small, using thicker oils can cause VVT issue if things aren't squeaky clean. Fixed a few with this issue degunking the engine with whatever elixir or oil you prefer.


06 Escalade 6.0L LQ9 AWD 165k M1 5w30
03 Maxima 3.5L POS 152k ST HM 10w30
Re: Oil causing problems in VVT engines [Re: KingCake] #4473520
07/28/17 11:19 PM
07/28/17 11:19 PM
Joined: Jul 2009
Posts: 19
Ca-Wa-Japan
udidwht Offline
udidwht  Offline
Joined: Jul 2009
Posts: 19
Ca-Wa-Japan
Originally Posted By: KingCake
Yes...oil level and quality greatly affect VVT systems. Both the solenoids and phasers. This is common knowledge. I suggest using a better filter like Fram Ultra. That might help. Your engine might have excessive blow by.


Avoid using anything made by Fram. Pure [censored].

Mobil 1 Extended Performance, WIX and/or NAPA Gold

Nothing else.


1994 Fleetwood Southwind Storm 28ft
P-30 454 TBI w/4L80E trans
1972 VW Westy hardtop (Type-4 2056cc)
2003 Toyota Highlander 2.4L
Re: Oil causing problems in VVT engines [Re: udidwht] #4473897
07/29/17 01:24 PM
07/29/17 01:24 PM
Joined: Mar 2015
Posts: 10,822
In the shop
53' Stude Offline
53' Stude  Offline
Joined: Mar 2015
Posts: 10,822
In the shop
Originally Posted By: udidwht
Originally Posted By: KingCake
Yes...oil level and quality greatly affect VVT systems. Both the solenoids and phasers. This is common knowledge. I suggest using a better filter like Fram Ultra. That might help. Your engine might have excessive blow by.


Avoid using anything made by Fram. Pure [censored].

Mobil 1 Extended Performance, WIX and/or NAPA Gold

Nothing else.


That's total B.S. As I've used FRAM ULTRA on VVT engines without issues


09' Camry LE, 141,020 miles

PP 5w30 and TG 4967

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