Just had my fuel pump replaced, no more humming at start up.

Discussion of Infiniti's amazing (and underrated) sport-luxury crossovers, the EX35 and EX37. For 2014, the EX series will be renamed QX50, in line with Ininfiit's new naming conventions.
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sluday
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I just had my fuel pump replaced today. I was hearing the humming noise at start up that some members reported. I was going to wait until my first service but the noise was heard when accelerating as well and I did not want to take a chance of breakdown or serious problems. My EX runs so much quieter now. Service department told me that the received a bulletin about the fuel pump issue and all new EX's were having the pumps swapped at the port. he told me that all pumps will be changed whether they make noise or not. I bought my car off the dealer lot last month so my EX had the old pump. By the way, I bought my car from Circle Infiniti in West Long Branch, New Jersey and their service department is top notch and very professional. At drop off it took two minutes to get the car in and loaner was waiting and on pick up I was out in about 30 seconds as they pulled my washed and waxed EX to the door. They made my last Audi service department look like a Yugo dealership.


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dividedhighw
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Thanks for the update, sluday!

My dealer's supposed to call me when they receive the replacment pump - that was more than 2 weeks ago. Time to bug them, I guess; I'm definitely NOT receiving the type of service you're describing!

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Riker2k
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Hi guys,

As a note, my dealer just advised me that my fuel pump replacement has finally arrived (around 2 weeks or so as well) so in she goes next Thursday!

I'll report back after that. Glad to hear that yours is running well Sluday!


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sluday
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WOW two weeks to wait for a part? My service department must have been ready for the fuel pump problem and stocked up. Do you think it is a Canadian parts distribution problem that caused the delay or just a lazy service department?

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nghivdo
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I'll bet they're on backorder if so many are getting replaced. The factory probably can't churn 'em out quick enough.

bttek
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My EX is currently in the shop for the fuel pump replacement as well as a few other items that I wanted taken care of at the same time.

I will hopefully get the car back tomorow night and see what changes if any it made.

lkp730
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is there a recall on this matter?

bttek
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I had my fuel pump replaced under warranty last week. The vibration that I was experiencing at startup is now gone. The tech did a perfect clean install and the dealership gave me a G35 loaner for the day it took to peform the service.

BrianBT Tech


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rontek
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When I took my EX in for its first oil service, I requested they replace the noisy fuel pump as well. As many others have experienced, the part was on backorder. As soon as I receive notice it has arrived, I will post an update.

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78258
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Went to the dealer today, They said 1 out the 3 EX they sold has fuel pump humming noise. I got my replaced Today and got the G35 loaner.

allthatjazz
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After reading all of your posts, I called my dealer today to inquire about the fuel pump replacement. Markham Infiniti told me that they have no knowledge of a recall on the fuel pump for any of the EX35. He said if or when there is a recall, I will receive a notification in the mail.

The service rep wanted to know where in the world I heard this info, as he has not received any communique or any service bulletin advicing that there are any known issues with the fuel pump. ... .I replied, Infiniti Forum rules

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dividedhighw
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The part finally arrived and I got my fuel pump replaced Aug 19th - no more noise.

The bad news is that the dealership scratched my shift knob again (2nd time now), so they have to order a new one for me.

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SalsAsianMike
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I had a couple of minor things done yesterday and I told my service rep also about the fuel pump issue because I definitely was hearing it since I bought my EX last week.

The service rep had no idea what I was talking about but another one overheard us and said that he did. So the rep ordered a fuel pump for me and hopefully it'll be here in 5-10 days (maybe not if everyone else in the country is doing the same). He also mentioned that he ordered additional fuel pumps to prepare for the onslaught of replacement requests.

So if you're in the DC area, you can look into Passport Infiniti in Alexandria. Just remember I got dibs on the first one!

bonzai_can
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Sounding like I have the same issue with my new EX35 ... it started making a humming noise at start up a few weeks ago but I thought it was my imagination. It is now making the same (or worse) noise during acceleration. Booked in for 1st service on Thursday so going to advise them to get this addressed.

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sluday
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allthatjazz wrote:After reading all of your posts, I called my dealer today to inquire about the fuel pump replacement. Markham Infiniti told me that they have no knowledge of a recall on the fuel pump for any of the EX35. He said if or when there is a recall, I will receive a notification in the mail.

The service rep wanted to know where in the world I heard this info, as he has not received any communique or any service bulletin advicing that there are any known issues with the fuel pump. ... .I replied, Infiniti Forum rules
My service department told me that they had received a service bulletin from Infiniti about the fuel pump problem. I am not sure if this means it is a official recall or just a heads up to be aware about the problem. I would check with another service department if they would do the repair. I am not sure why they would give you a hard time about the pump. The dealer gets money from Infiniti to do the repairs so they lose nothing.

bonzai_can
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My dealer is aware of a problem with the fuel pump ...he told me what the symptoms were before I said anything more. They have the pumps in stock ready to go. There is no official recall & they haven't received a bulletin yet ... although he did say that this could be a US versus Canada thing. Anyway getting it fixed on Thursday along with the 1st service.

bonzai_can
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I now have one new fuel pump ... price: free ... hopefully this one will be problem free.One new tire (thanks to a nail in the sidewall) ... price: $309

At that price for tires I'll be shopping elsewhere in future (comparable at other tire specialist circa $180 ... so that's some dealer markup)!

googleman
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My EX makes a brief weird noise upon startup as well. It lasts about a second, and then disappears. Feels like it comes from the rear of the vehicle. May this be the fuel pump problem you are talking about? If it is, how dangerous is it if I don't have it replaced? (I don't mind the noise and it doesn't affect the performance)

bonzai_can
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Yup that's exactly what it sounds like ... and I was assured by the dealer that there is no fear of mechanical failure / breakdown. They replace it under warrenty as it isn't supposed to make that noise though.I figured if I'm paying that sort of money for a vehicle it should be just right, especially if covered by warrenty.

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rubystar88
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Well, my EX is going on Friday to have the fuel pump replaced too.I thought the "hum" sound was part of the starting procedure...it had a nice melody Thanks for being this to my attn everyone...especially sluday who first reported the issue.

Out of curiosity...Is anyone else having bird dropping issues?I have a good coat of carnuba on the paint and keep it meticulously clean....once my EX gets "dropped on", I need to wipe it off immediately or a "scar" is left...has happened 4 times now ...wonder if it is a dark currant paint weakness??

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Punjab
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I have had the same problem with my Black Ex i have now resorted to a bug and tar cleaner that is safe for all clear coats.. it appears to be citrus based to me best estimates.

All so has anyone had preset problems where a FM station causes the preset number to disappear, resulting in a looping of 2-3 presets so you can not access the rest in the Category, it may or may not happen in both up and down directions from steering wheel.

Thanks

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dividedhighw
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Welcome to the NICO EX forum, googleman!

Mine was precisely like that and now that the fuel pump has been replaced, it's gone.

Cheers,David

sg77
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I had the same fuel pump humming noise when starting the engine; I had the fuel pump replaced as described in Service Bulletin ITB08-025, and the noise is now completely gone.

(When I mentioned the noise to the service advisor at the local dealer, he said pretty much all the EX35's have the problem, and they hadn't found a way to fix it; he said even replacing the fuel pump didn't help. But he wasn't aware of that service bulletin, so I guess they hadn't been replacing it with the different pump. I showed the service bulletin to him and asked him to follow that; he was surprised/glad to see that it actually worked.)
Punjab wrote:All so has anyone had preset problems where a FM station causes the preset number to disappear, resulting in a looping of 2-3 presets so you can not access the rest in the Category, it may or may not happen in both up and down directions from steering wheel.
I haven't experienced that problem, but when I was browsing Service Bulletins at [another forum] I noticed ITB08-037, titled "RADIO WILL NOT SCROLL THROUGH ALL PRESETS (NAVI-EQUIPPED ONLY)". I wonder if that applies to your problem. It says "IF YOU CONFIRM: Preset A, B, or C does not scroll through all six (6) preset stations... ACTION: Replace the A/V Control Unit". It says it applies to EX35's built before 3-18-08.

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dividedhighw
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Good catch, sg77 ... that might well be it!

(BTW, welcome to the group and please check your email for a note from me.)

Cheers,David

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Punjab
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thanks sg77.... i will go to my dealer and get a few thing addressed like my fuel pump as well. ..

on a off note. dividedhighw do you have the nav bypass info?

thanks

googleman
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sg77 wrote:I had the same fuel pump humming noise when starting the engine; I had the fuel pump replaced as described in Service Bulletin ITB08-025, and the noise is now completely gone.

(When I mentioned the noise to the service advisor at the local dealer, he said pretty much all the EX35's have the problem, and they hadn't found a way to fix it; he said even replacing the fuel pump didn't help. But he wasn't aware of that service bulletin, so I guess they hadn't been replacing it with the different pump. I showed the service bulletin to him and asked him to follow that; he was surprised/glad to see that it actually worked.)
I had my fuel pump replaced at the dealer. I am a bit disappointed though, the previous humming sound was actually giving the car personality Right now the initial ignition sounds la bit cheap, like a used car engine - or diesel engine even - at start up: cha-cha-cha wrooommmm

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SalsAsianMike
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googleman wrote:
I had my fuel pump replaced at the dealer. I am a bit disappointed though, the previous humming sound was actually giving the car personality Right now the initial ignition sounds la bit cheap, like a used car engine - or diesel engine even - at start up: cha-cha-cha wrooommmm
Having mine replaced on Thursday. Hopefully mine will salsa/mambo instead of the cha-cha-cha

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SteveTheTech
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Good luck,

Where are you taking it if I may ask?

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SalsAsianMike
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SteveTheTech wrote:Good luck,

Where are you taking it if I may ask?
Passport Infiniti.

Service rep said he was stocking up on the fuel pump in case more people started asking for them.


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SteveTheTech
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They usually are in stock I.


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