Air intake suction whistling

[brainguyus]

YUDAMAN!!!

[mikefontenot]

Are you a service tech for a Nissan dealership? I contacted my service adviser and told him about the fix and he told me that he would have to research it and check for a bulletin. I guess he just doesn't want to replace the throttle chamber and gasket without knowing for sure that that is what is wrong. Is there a bulletin or can you give me some advice?

[pm_page6776]

I am a Nissan master technician. There is currently no TSB for this problem. Your best bet is to have them contact Nissan Techline.

[tunes4life]

OK, just updating. I have this same thread going on 3 different Nissan forums. I have a list of around 35 people who have had this problem. 3 of them have had the throttle body replaced and that apparently works. However, I still have a couple of questions.

1. Is there a TSB for this yet? My Nissan Shop will not do the fix without some kind of TSB. Believe me I've tried.

2. When they replace the throttle body is it with a redesigned part? Are they replacing the part with the exact same part that is going to start whistling again after 2 months? Was it a problem with the original installation of the part (ie. the part was installed improperly)?

I notice this problem the most when the windows are open and spring is quickly approaching. I really would like to get this problem rectified and I have a lot of people who are wondering the same things as me. Please Nissan, some more info.

[Timmbo]

The Nissan Service Bulletin # for the whistling issue is: NTB08104

[Musky300]

Thanks for the TSB #, I'm sure that'll help a lot of people.

For the record, the throttle body does NOT have to be replaced. Here is the fix description...straight from Nissan:

NTB08104 IF YOU CONFIRM A whistle noise coming from the engine during light acceleration, ACTIONS Unbolt but do not remove the electric throttle control actuator. Replace the actuator gasket. Reposition the actuator on the manifold and secure following the instructions in this Service Procedure. NOTE: The repair of this issue, if it should occur, is the repositioning of the actuator not the replacement of the gasket. The gasket is replaced because the actuator is being unbolted from the manifold.

[Whitemur]

I ordered a 09 LE in January 2009. I took delivery the 2nd week of March.I had the car for about 3 months when I started hearing this whining noise. I stopped by my local dealer and took the tech for a ride and he admitted that something wasn't right. I left the car at the dealer a couple of days later so they could investigate. I called shortly after lunch to see if they found anything wrong and they were already in the process of dropping the transmission out of it. The car only had 2,200 miles on it. They were hoping the new transmission would be in within 6-9 days. The new transmission finally gets here so I'm thinking it's only going to be a couple of days and I'll have my car back. So I keep stopping by the dealership to check out the progress and they're not working on it. So I walk through the shop like I own the place and nose around by car. Sitting on the floor uncovered is the transfer case. The A/C compressor is disconnected with no plugs to prevent dirt from getting into it. I'm ticked. I Finally get my car back and it makes the same exact same sound as before. In the meantime I'm on the phone with Nissan Corporate and they assign me to a corporate rep. I tell them that they should replace my car after having it torn apart and lying on the shop floor uncovered. I take the car for along weekend to Omaha which is about 4 hours away from home. I'm driving the next day in city traffic when a pickup pulls up to me and yells that my car is leaking oil really bad. I pull over and sure enough I have oil pouring out from under the engine. An employee from Woodhouse Nissan pulls over and gives me a ride to their dealership. The car gets towed. A transmission cooling line was improperly installed during the repair and failed. It took all day but they got my car fixed. I called my Nissan rep and complained about being broke down on vacation and tell them that they should replace my car. To keep this story from becoming chapters here's what Nissan finally agreed to. They allowed me $3,000 towards the trade of another Nissan. They weren't going to let me have another Murano since they were having problems with the induction noise. They finally agreed and in October I took delivery of another new Murano and yes it makes the same noise but it hasn't been lying on the shop floor. So with warmer weather I'm driving in the neighborhood with the windows down and it's making me mad. I live in a hilly area and going up the hills at about 1300 RPM it really gets to whining, so I got on the internet tonight and discovered this thread. I'm printing it and taking it to my local Nissan dealer to see if they can finally put an end to this.

I had an 04 Murano before the 09 and loved it, no problems. I had two Maxima's before the Murano's. My last four vehicles have been new Nissans. You would have thought that Nissan would take care of a very loyal Nissan customer. This event has spoiled the love. At this point I don't know if I'll ever buy another Nissan.

[tunes4life]

Wow, sorry to hear all that. It's too bad you didn't see the thread first. Oh well.

As far as the TSB is concerned, it is confirmed. The adjustment was made to the throttle body and I have had no whistling since. Thank you Nissan.

[8675309yine]

Has anyone found a K&N air filter for this vehicle yet? I want one. Otherwise, I absolutely love this vehicle : )

You might want to check these out, and see if you can find the 09. I just bought one for my 05 and it was sealed Brand New!! This is the K&N equivalent, Fram Airhog and $8.98, yes Eight Dollars and ninety eight cents!! you can not loose!!

http://www.amazon.com/s/ref=nb...0&y=0

Thanks"86"

[MSR74]

I took my '09 Murano to the dealer service department today.

I too have the same "whistling" noise everyone is talking about.

They are currently ordering a gasket for something but I can't remember what part it was.

When I get the Murano back tonight I will list the info on the repair order so others with this issue can hopefully get a reprieve.


Modified by MSR74 at 5:59 AM 8/15/2009

[MSR74]

Ok...I got the paper work back from the dealer.

It may help all to know that the part that was ordered is called a "THROTTLE GASKET."

The mechanic diagnosed it immediately and I received a call back from the dealership service center letting me know that the part would be ordered and ready to be installed sometime next week.

I will report back with an update as soon as the repair has been completed.

Hope this helps all of you searching for answers.

From speaking with the service advisor, the mechanic also did NOT think it was normal and apparently thought the current gasket was faulty.

MR

[AhmadQ]

I got brand new Murano 2008 (stored) last month, and I hear the same noisy whistle, but I don't think the whistle I’ am hearing is due to engine or any mechanical issue as this noise I’ am hearing when my windows down and most likely it is related to problem in the window wrappers or the door locking which allow the wind to get inside the car and cause this noisy whistle and it is not related to the acceleration, I heard the whistle at speeds greater than 45mph, I went to my Nissan dealer and explained the problem to him but workshop was fully loaded so he gave me appointment after two weeks.

[tunes4life]

OK, a couple of things. Firstly, I don't believe there is such a thing as a 2008 Murano. I think they skipped that year completely. Which means you most likely have either a 2007 or earlier. If this is the case, the throttle body issue does not apply to you. As far as I know this was only an issue on the 2009 model. It really has nothing to do with the gasket, it has to do with the installed position of the throttle body. However, they need to replace the gasket to make the repair. I had this issue with a 2009 Murano SL and it indeed fixed the issue. It has now been over a year and I haven't heard the whistling noise. It really has nothing to do with acceleration. It has more to do with the RPM that the vehicle is running. My car would hit that "Sweet Spot" occasionally whether I was going 25 or 65 mph. Good luck with your noise though. I know how something as silly as a noise like that can really sour a car experience.

[Johns09Murano]

Ok...I got the paper work back from the dealer.

It may help all to know that the part that was ordered is called a "THROTTLE GASKET."

The mechanic diagnosed it immediately and I received a call back from the dealership service center letting me know that the part would be ordered and ready to be installed sometime next week.

I will report back with an update as soon as the repair has been completed.

Hope this helps all of you searching for answers.

From speaking with the service advisor, the mechanic also did NOT think it was normal and apparently thought the current gasket was faulty.

MR

The gasket is not faulty. They have to replace it when unbolt/adjust the TB (raising it up while tightening it again). Service Bulletin NTB08104 describes it well for them. I just had it done on my Murano - worked - it's incredible driving without that noise!

[nelliott1241]

Ok...I got the paper work back from the dealer.

It may help all to know that the part that was ordered is called a "THROTTLE GASKET."

The mechanic diagnosed it immediately and I received a call back from the dealership service center letting me know that the part would be ordered and ready to be installed sometime next week.

I will report back with an update as soon as the repair has been completed..

MR

My '09 Murano is getting the throttle gasket replaced/adjusted this week.How long did the repair take for you?

[KJSmitty]

My '09 Murano is getting the throttle gasket replaced/adjusted this week.How long did the repair take for you?

The TSB process/gasket replacement takes all of about 30 minutes.

Good luck - cheers

[Musky300]

FYI to everyone with the whistling sound.

This issue has CONSUMED me ever since I took home my 2009 LE back in May 2008. I have taken it to the dealers twice with the TSB info to fix it.

First time after the fix, the noise (on a scale of 1 to 10), went from a 10 down to a 4. This was WAY better than before where it was almost unbearable hearing that high-pitched dog whistle.

About 6 months later...I took it back because the whistle, although much improved was still there. They did the TSB fix by adjusting the throttle body and replacing the gasket (don't think they replaced the gasket the first time). This time, the whistle went down from a 4 to a 1 or 2. I may be a freak, but if it is real quiet and I get the RPM band in exactly the right spot with just the right amount of gas applied, I still hear it. It is much more faint and I'm probably only one out of 20 people that could hear it (because I've tuned my ear into to), but it is definitely still there.

I am ok with it where it is...but the fact of the matter is that something in the engineering design of the TB is flawed and Nissan let this slide through the cracks. I suppose if I pushed hard enough, I could get a whole new TB installed, but I don't think its worth the fight at this point considering all I had to go through just to convince them to do the TSB fix twice.

[sidney_yu]

Hi pm_pge6776:I returned my 09' murano for this issue this week. In Taiwan, Murano is rare to see( 200 cars sold per year). I told my dealer and the machanic about this sound on my car, and told them the TSB NO. for this issue. After they replacing the THROTTLE gasket, I found the whistling sound remained. It didn't disappear. I checked the TSB in the website, it wrote that THROTTLE gasket was replaced due to the adjustment of THROTTLE. Could you describe more specifically about the adjustment, please? So that, I can tell them how to fix this issue. Or, TSB already describes this fixing process clear enough? I just have to ensure they did follow the instruction in that note. Could you help me on this please? BRSidney