Major maintenance on 2012 Infiniti QX56 - Nissan Armada Forum: Armada & Infiniti QX56 Forums
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post #1 of 166 (permalink) Old 02-08-2016, 10:41 PM Thread Starter
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Major maintenance on 2012 Infiniti QX56

I just decided to make a thread to follow up major maintenance on this QX56.

2010 Nissan Maxima SE, Houston, TX - Page 36 - Nissan Armada Forum: Armada & Infiniti QX56 Forums

MAINTENANCE SCHEDULE

1/30/2016: 79,900 Bought my 2012 QX56 at Superior Auto Sales in Hamburg, NY. Drove it 1,500 miles home to Houston.
2/4/2016: 81,500 Oil change with Mobil 1 Extended Performance 5W30. So, full synthetic.
2/5/2016: 81,600 Changed all 8 spark plugs. Drain and fill power steering fluid.
2/12/2016: 81,700 Did coolant flush.
2/18/2016: 82,300. Bought life time balance and rotation on current tires. Bought lifetime alignment. Bleed brakes. Got my TX license plates.
2/22/2016: 82,444. Front and Rear differential fluid done. Brake fully flushed. Installed rear bumper protector.
3/3/2016: 83,300. Transfer case drain and fill done.
3/7/2016: 83,400. Transmission fluid drain and fill done.
4/3/2016: 85,000. Installed OEM front brake pads, OEM rear brake pads, new front and rear rotors, and changed my ac belt. Car feels great and stopping power is immediate.
4/22/2016: 85,400 Oil change with Castrol 5W30 Extended Performance with Titanium.
8/27/2016: 96,000 Replaced timing chain under recall. Changed front lower control arms, front shocks. Did oil change and alignment. Replaced driver side dvd headrest.
9/14/2016: 97,000 Replaced Air and cabin filters
11/11/2016: 98,000 Replaced Transmission Control Module. Did transmission fluid change
11/14/2016: 98,100 Did oil change
12/17/2016: 100,000 ODOMETER turned to 100,000 miles
1/30/2017: 101,000 Car turned ONE year old in my ownership. So put 21,200 miles in first year.
2/26/2017: 102,550 Did oil change. (CHECKENG! first occurrence)
4/3/2017: 104,630 Installed offroad tires. 305/45/22 Atturo Blade XT.
4/17/2017: 104,870 Discount tire balanced and rotated tires. Firestone did alignment.
5/12/2017: 107,850 Changed bank 1 catalytic converter, gaskets, oxygen sensor and bolts and nuts. Oil change done. Cabin filter and air filter changed.
8/3/2017: 117,600 Oil change. Mobil 1 EP with Mobil 1 EP filter
8/8/2017: 117,800 Installed new fog lamps housing and new led fog lamp bulbs
9/16/2017: 119,150. Changed bank 2 catalytic converter, gaskets, oxygen sensor, bolts and nuts. Changed all 8 spark plugs with new oem spark plugs. Changed 2 ignition coils on the 1st 2 spark plugs. Cabin filter and air filter changed.
1/30/2018: 121,300. 2nd birthday of my 2012 QX56. I put a total of 20,300 miles this past year.
2/15/2018: 121,500. Oil change. Used Valvoline High Mileage Synthetic fluid with Mobil 1 Extended Performance filter. Balance and rotate tires. 4 wheel alignment done.
4/20/2018: 126,000. Oil change. First time using 0W40. Used German Castrol Full synthetic 0W40, which oil spec for european high end sports cars. My QX loves it so far.
8/2/2018: 131,000. Oil change. Castrol 0W40 with mobil 1 extended performance filter. Changed air filter and cabin filter. I used my last 0W40 for exactly 5,060 miles.
8/29/2018: 131,200. Dealership replaced wheel hub, bearings and ABS/Speed sensor on both passenger front and rear wheels. Balanced and rotated tires. Alignment done.
12/20/2018: 132,750. Oil change. First time using 0W20 and also using a larger filter than oem. Valvoline high mileage with KN filter. Changed 2 PCV valves.
1/23/2019: 135,100. Dealership replaced driver side rear wheel hub, bearings and ABS/speed sensor under warranty.
1/30/2019: 135,175: 3 years of ownership. Did 13,875 miles this year.
1/30/2019: 135,200: Replaced spark plugs, front and rear brake pads. Last set of brand new brake pads lasted about 50,000 miles. Replaced driver side caliper assembly. Driver front outer tie rod end replaced. Replaced all 24 lug nuts on all wheels. Rear differential leaking. Removed the whole rear differential. Cleaned it, put it back together with new sealant and put new rear differential fluid.
2/28/2019: 135,450: Installed 4 brand new mud tires; 285/55/22 Yokohama Geolandar M/T G003, made in Japan! Larger size tires than stock, giving me 1' lift. Tire rubs, but had to modify fender a bit to avoid rub.
3/28/2019: 135,500: Oil change. This time using all 7 quarts of Penzoil 10W30 and still using a larger than oem filter K&N HP 4001.

CURRENT ODOMETER: 135,600 Will be updating as often as I can remember.
My 2012 QX56 has extended warranty until 145,500 miles on odometer and my warranty has already paid over $18,000 in warranty repairs.

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post #2 of 166 (permalink) Old 02-08-2016, 10:49 PM Thread Starter
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I bought my OEM spark plugs and OEM belt from ebay about 2 weeks before I bought my QX. I have only 81,600 on odometer and it is recommended to change spark plugs at 105,000 miles. But since I already bought them, no need to wait until I get to that mileage. I called up the guy that did my Armada and took it to him.

We were supposed to do the spark plugs and the belt, but doing the spark plugs proved to be super tough. One side was easy while the other side was a nightmare and he broke one of the coil packs. Yeah, not really broke it. It came apart and some spring inside popped out and almost got lost.

I mean, to take out the half piece left inside was a true nightmare and I almost decided to tow the car to the dealership, lol. I mean, it took us close to 40 minutes to finally take that piece out. But we finally did it and almost ruined that coil pack. But we put it together and car started right up with no codes and drives strong. I am glad I got this done. We could not do the belt and so plan to do it some other day. I compensated him for the hard work and cruised back home.

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post #3 of 166 (permalink) Old 02-08-2016, 10:54 PM Thread Starter
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OEM spark plug and belt




Spark plugs at 81,600 vs brand new ones

And this is working on the last spark plug that was a nightmare.

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post #4 of 166 (permalink) Old 02-08-2016, 11:00 PM Thread Starter
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I had a bottle of Amsoil left that can be used for the power steering. So, I used it.

I sucked out the old fluid from the reservoir and put some new bright red fluid. Then drove around for about 20 minutes while turning the wheel end to end. Then sucked out the fluid from the reservoir and then put some new one again. Fluid is still black. I will drive the car again for about a week and then do this again.




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post #5 of 166 (permalink) Old 02-09-2016, 12:38 AM
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Nice....at least you got it done.
I do my own work on my 02 golf tdi and some prior cars but the couple of times I pop open the hood on my 11 qx56,my skin crawls..😯.
I'm going to wait till the warranty is over and hopefully the mitchell on demand I have will help me do a few things when the time comes without making it worse than it was before...sigh.
So far,I've realized the knowledge on the Web to help tackle a few things on this beast is small and scares.
Is it because it's not that old or its just that reliable that folks don't work on them a lot ?
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post #6 of 166 (permalink) Old 02-09-2016, 01:14 AM
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this should really be in the qx section....
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post #7 of 166 (permalink) Old 02-09-2016, 12:22 PM
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Quote:
Originally Posted by PetitFrereArmada View Post
I had a bottle of Amsoil left that can be used for the power steering. So, I used it.

I sucked out the old fluid from the reservoir and put some new bright red fluid. Then drove around for about 20 minutes while turning the wheel end to end. Then sucked out the fluid from the reservoir and then put some new one again. Fluid is still black. I will drive the car again for about a week and then do this again.




I did not know you could use ATF fluid in power steering. This is something new.
I went through the same steps to "fresh" up the power steering fluid but it was still pretty dark. Please keep me posted on how much cycles you have to go through to get the fluid clear up again.
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post #8 of 166 (permalink) Old 02-09-2016, 08:43 PM Thread Starter
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Recently I have been reading on the Infiniti FX forum about how some of them are cleaning their throttle body and MAF sensor. There are some very interesting threads over there. As usual, some people have had success with this while some people have MESSED up their cars.

Before I decided to do this, I told myself: Do it at your own risk.

I have read a lot on other Nissan threads and a lot of people are doing it with success while some people are messing up their cars. I called up the guy who does work on my car and asked if he could do it for me and I will pay him. He said he rather not mess with that. I said cool. I called up the dealership and asked for a quote for my Maxima. Dealership told me $175 plus tax. I said thanks.

Well, my inner self said I should go do it. But it also reminded me again; Do it at your own risk.

Well, I went to the store and bought what I needed to clean the throttle body and the MAF sensor.

Well, I want to do this on my QX56, but I needed a test car. Thank God I have my daily driver; my loyal and faithful 2008 Nissan Maxima. So, I put it to the test to do the job.

Let me share how it went. This is what I got from the store.


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post #9 of 166 (permalink) Old 02-09-2016, 08:56 PM Thread Starter
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The entrance of the throttle body. Did not look too dirty.
BEFORE

AFTER


The back of the throttle body
BEFORE

AFTER


The plenum
BEFORE

AFTER


And the dreaded part of all that most threads advice against touching this or you will mess your car up. Well, I had read it enough to get the courage to touch it. So, i did touch it gently to open it and clean around it. Many people say their car got messed up after touching this as the car will idle high after they touch this messing up stuff. Well, I decided to touch it. If I was going to clean this, then I was going to clean it the best and most careful way I have learned on the internet and on forums.


And this is all my thrash from cleaning the throttle body. Trust me, it was dirty. 198,000 miles of it never done before. The Maxima sure appreciates the cleaning.

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Last edited by PetitFrereArmada; 02-09-2016 at 09:43 PM.
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post #10 of 166 (permalink) Old 02-09-2016, 09:07 PM Thread Starter
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And for the MAF sensor, I got it out and just sprayed around it and sprayed the thin wires about 12 times. Then let it to dry. When I was done, I left everything out for an hour to dry off. Then I put them back together.


I sprayed this about 12 times


Then I also sprayed all around the MAF.

This is my rpm after test run.


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