Itb08-028: Noise From Bank 2 Vvel Actuator
10-30-2008, 06:45 PM
#64
Registered User
Join Date: Aug 2007
Location: Rancho Santa Margarita, CA
Posts: 121
Likes: 0
Received 0 Likes
on
0 Posts
See this thread for a soundclip of the VVEL knocking sound:
https://www.myg37.com/forums/g37-coupe/186127-what-s-this-noise.html
https://www.myg37.com/forums/g37-coupe/186127-what-s-this-noise.html
10-30-2008, 07:16 PM
#68
Registered Member
Join Date: Jul 2008
Location: 33° 34′ 10″ N, 117° 12′ 9″ W
Posts: 116
Likes: 0
Received 3 Likes
on
3 Posts
clip dont work... i heard that before tho and it sounds pretty bad..
is that the same "knock" u guys are talking about?? choy?
i wonder if u get this if you push your car a lot... i push mine once in a while..
is that the same "knock" u guys are talking about?? choy?
i wonder if u get this if you push your car a lot... i push mine once in a while..
11-01-2008, 07:35 PM
#69
Registered User
Join Date: Apr 2005
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
My G37 AT exhibited all the classic symptoms. The sound was really only noticeable to me at hot idle and sounded like either valve clatter/tapping or maybe even a bad fan belt. I figured I'd better bring it in because I didn't want to risk potential engine damage. I had no idea it was a known issue. Anyway, yesterday at the 7.5k service they performed the full 028A along with the ester oil fill.
So far, the sound is completely gone and the car feels faster...but I may be imagining that.
Question - when I periodically top off the oil (between changes) do I have to use ester oil, or can I just use normal (non-synthetic) 5w-30 or 10w-30???
If it's ester what kind?
This is my second G and the car's been flawless for six months.
So far, the sound is completely gone and the car feels faster...but I may be imagining that.
Question - when I periodically top off the oil (between changes) do I have to use ester oil, or can I just use normal (non-synthetic) 5w-30 or 10w-30???
If it's ester what kind?
This is my second G and the car's been flawless for six months.
11-01-2008, 11:52 PM
#71
Registered User
Join Date: Apr 2005
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
^^^^your topping off the oil regularly? That means your having oil consumption!!!! It seems to be one thing after another with this engine.
11-03-2008, 01:28 PM
#72
Mine had this knocking noise slightly and had them run diagnostics, they said the noise was just out of spec enough to be able to do the warrantied software upgrade and included free ester oil change. In fact, it worked out because it was an appointment I initially set to do my 7500 oil change. Does anyone know if there are any synthetics out there with similar amounts of ester-based additives? I would love to still be able to go synthetic one day! They said they can only guarantee the knocking noise to stay away if I use Nissan ester oil. Though this change was free - subsequent changes will be $65ish.
This TSB makes the 5th slight issue I've had fixed on my G. But I'm not too upset because they have been very prompt and cooperativa with performing warranty work!
1. Rear Axle click/chirp (lubed splines on rear axle)
2. Window regulator on driver's side was faulty (replaced window regulator and paid for re-tinting)
3. Muffler buzz/rattle (replaced stock muffler)
4. Faulty insulation on Stock YPipe, was making ticking noise from heat. (replaced YPipe)
5. Slight VVEL knock driver's side (upgraded VVEL software and performed Ester Oil Change.
Note:
When driving up or down steep grades on an angle and even when cornering - the alleged "body flex" makes my moonroof make a popping noise. I hear this about 1-2x a day and almost each time I pull out of my driveway. I hope this doesnt cause issues and I hope they can make a fix for it.
This TSB makes the 5th slight issue I've had fixed on my G. But I'm not too upset because they have been very prompt and cooperativa with performing warranty work!
1. Rear Axle click/chirp (lubed splines on rear axle)
2. Window regulator on driver's side was faulty (replaced window regulator and paid for re-tinting)
3. Muffler buzz/rattle (replaced stock muffler)
4. Faulty insulation on Stock YPipe, was making ticking noise from heat. (replaced YPipe)
5. Slight VVEL knock driver's side (upgraded VVEL software and performed Ester Oil Change.
Note:
When driving up or down steep grades on an angle and even when cornering - the alleged "body flex" makes my moonroof make a popping noise. I hear this about 1-2x a day and almost each time I pull out of my driveway. I hope this doesnt cause issues and I hope they can make a fix for it.
Last edited by DetroitG37Joe; 11-03-2008 at 04:28 PM.
11-03-2008, 01:32 PM
#73
Sam Rothstein
iTrader: (9)
Join Date: Feb 2008
Location: Riverside/San Diego, CA
Posts: 10,435
Likes: 0
Received 8 Likes
on
8 Posts
I got my VVEL issue fixed prior to the whole ester oil deal and have not had a noise since... I'm running Eneos 5-30 Fully Synthetic and it runs like a dream... No noises or issues...
11-03-2008, 02:44 PM
#75
Registered User
Join Date: Apr 2008
Location: San Juan, Puerto Rico
Posts: 397
Likes: 0
Received 0 Likes
on
0 Posts
Well, I had mine fixed before the Ester Oil ammendment (Anyway, my only local Infiniti delaer insists that they don't have any new bulletin, so they are not doing the Ester one), and it fixed my issue for some time, then I began to hear it again, I haven't heard it anymore since I changed to Royal Purple 5W-30 Full Synth.
Last edited by erasat; 11-03-2008 at 05:00 PM.