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Vibration during idle

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Old Jun 16, 2010 | 04:00 PM
  #31  
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The other thing that's worth mentioning... this vibration started after I had my alternator belt replaced. I had it in for an oil change and they said it had a crack so I said ok, replace it. The dealer didn't do it, my local shop did it. I brought it back and said just for grins and giggles, humor me and adjust the belt's tension a bit. They did and it started squealing so they adjusted it back to specs. It's probably a coincidence that it started when the belt got replaced but anyone have any thoughts?
 
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Old Jun 17, 2010 | 09:27 AM
  #32  
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read above.
 
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Old Jun 17, 2010 | 09:53 AM
  #33  
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Tollbooth,
My car only has 45K miles on it and the dealer checked the spark plugs and said they were fine. Motor mounts prob wouldn't go at that mileage either I assume.
 
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Old Sep 2, 2011 | 03:01 AM
  #34  
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Just got a g35 04 coupe maual with 84k miles and it is doin this same thing anybody found out what it is ??? Tune up maybe...
 
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Old Sep 2, 2011 | 08:24 PM
  #35  
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i've gotten used to the sound level
 
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Old Sep 4, 2011 | 09:04 AM
  #36  
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From: Cherry Hill, NJ
Originally Posted by catsnmusic
Yes, this is the video I watched yesterday. Sorry to sound like a wuss but this is way too involved for a Boston city girl like me. I'm just not THIS handy. I added Lucas fuel additive to a full tank, it didn't help. Is that along the lines of what you mean by using an additive or should I try a different type? Maybe the MAF sensor wasn't part of the cleaning out they said they could do but definitely the throttle body.
i had the same problem, it was a FILTHY throttle body. I have pics here...
https://g35driver.com/forums/engine-...xperience.html
but I(as well as those before me) have been using 91 octane and the things obviously never been cleaned! I myself am not the most mechanically inclined person(aside from oil changes and CAI installs) but it was disgusting and giving me rough idles, so I decided to clean it out(after 187xxx miles of no love). I'm no pro, but wouldnt reccomend using a toothbrush, your throttlebody has a coating on it that it needs to retain. i used a microfiber cloth($5) and throttlebody cleaner from autozone($5-$10). for the most part I just "power blasted" the carbon deposits off of the TB with the can of TB cleaner. I had to use the rag to get some of the edge of the TB's "door" and whatever didnt want to come off of the rest of it. GL
 
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Old Sep 4, 2011 | 05:28 PM
  #37  
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that's right, I remembered I did also used throttle body cleaner on mine too. mine wasn't that dirty, didn't seem to have helped me though...
 
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Old Oct 21, 2011 | 12:51 PM
  #38  
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My car is doing this now too. Just started happening when I put my oem exhaust back on. Hopefully it's just readjusting or I will clean my throttle body. Fml
 
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Old Nov 4, 2011 | 06:00 PM
  #39  
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No one knows what this is caused from???
 
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Old Nov 7, 2011 | 01:26 PM
  #40  
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Well that's depressing..
 
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Old Nov 8, 2011 | 12:23 PM
  #41  
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Infiniti G35 Throttle Body Issues

I own a 2007 Infiniti G35, I dropped it off yesterday at the dealership's service dept. I explained to them that the engine is reving by itself and the car wants to stop. You can feel the flutter.
A serv. rep later that day calls me to ask if I had n e one clean my TB sensors and replace my air filters. Yes, I did. That is exactly what someone did a couple of days before I dropped it off at Infiniti. He then said all they needed to do is reset the computer and that it is part of the diagnostic fee of 130.00. I was/am confused however because if all that needed to be done was a computer reset... I don't see how this would fix the problem? Also, the car was fluttering before I had someone change the filters and clean the sensors. They only did this to help the car from stalIing, so then i asked what would Infiniti have done had I not gotten n e one else to look at my car before I took it in to them. The serv. rep said they would have done the same thing and it would have cost me 185.00 vs 130.00. So I was happy cuz I saved a little bit of $$.
So I picked up my car today and my car stopped at a redlight and I could still feel a flutter. I took the car back and the serv. rep said he hopes I don't need to replace both TBs because that is expensive. What I don't understand is my car was fluttering before I had a guy replace the air filters and clean the sensors. The serv rep siad Infiniti is hesitant to clean the TBs because they are so delicate. Did I make my car worse by having someone clean the TBs? Any comments/suggestions.
 
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Old Nov 8, 2011 | 01:19 PM
  #42  
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From: Charlotte, NC
Originally Posted by josameliss
I own a 2007 Infiniti G35, I dropped it off yesterday at the dealership's service dept. I explained to them that the engine is reving by itself and the car wants to stop. You can feel the flutter.
A serv. rep later that day calls me to ask if I had n e one clean my TB sensors and replace my air filters. Yes, I did. That is exactly what someone did a couple of days before I dropped it off at Infiniti. He then said all they needed to do is reset the computer and that it is part of the diagnostic fee of 130.00. I was/am confused however because if all that needed to be done was a computer reset... I don't see how this would fix the problem? Also, the car was fluttering before I had someone change the filters and clean the sensors. They only did this to help the car from stalIing, so then i asked what would Infiniti have done had I not gotten n e one else to look at my car before I took it in to them. The serv. rep said they would have done the same thing and it would have cost me 185.00 vs 130.00. So I was happy cuz I saved a little bit of $$.
So I picked up my car today and my car stopped at a redlight and I could still feel a flutter. I took the car back and the serv. rep said he hopes I don't need to replace both TBs because that is expensive. What I don't understand is my car was fluttering before I had a guy replace the air filters and clean the sensors. The serv rep siad Infiniti is hesitant to clean the TBs because they are so delicate. Did I make my car worse by having someone clean the TBs? Any comments/suggestions.
You're problem seems different than mine. Mine doesn't really flutter but more like the feeling of the AC compressor kicking on. Then it will go away for a second and come back on for a few seconds. This happened after I installed my stock cats and exhaust back on. I haven't touched anything else. No cel's yet so I'm not extremely worries, just annoyed. I guess o one has ever figured out the problem...
 
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