Fuel Pump Noise?

Engines, Transmissions & Final Drive questions and answers

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cemilbrowne
Learner Driver
Posts: 16
Joined: Thu Oct 11, 2012 2:59 pm
Vehicle: NC

Fuel Pump Noise?

Postby cemilbrowne » Fri Oct 12, 2012 11:59 am

Hi All,

Just joined the forums here - and just bought an MX-5 last week.

I bought a 2006 NC from a dealer in Sydney. When buying, I noticed a noise behind the passenger seat, even when the car was not in motion. It sounds like a somewhat high pitched whine - near where I would think the fuel pump is.

I pointed this out to the dealer, and they committed (in the purchase contract) to rectify it. They're now trying to tell me that it's normal - and I'm trying to get some advice here. Is fuel pump noise normal?

I'm 100% sure this isn't body/wind noise. I've checked it inside when not moving. It clearly sounds electrical/flow related. It is similar to the noise you hear behind the passenger seat when you switch the car to accessory mode - which sounds like the fuel pump spooling up. It stops in that case, but with the engine running, it is constant.

Any advice?

Thanks,
Cemil

User avatar
JBT
Speed Racer
Posts: 7946
Joined: Tue Jun 03, 2003 11:00 am
Vehicle: NC
Location: Brisbane

Re: Fuel Pump Noise?

Postby JBT » Fri Oct 12, 2012 12:45 pm

It is not normal. Hold them to the contract - if they agreed at the time of signing that it needed to be rectified, then it still does and they have committed to fix it.
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cemilbrowne
Learner Driver
Posts: 16
Joined: Thu Oct 11, 2012 2:59 pm
Vehicle: NC

Re: Fuel Pump Noise?

Postby cemilbrowne » Fri Oct 12, 2012 12:48 pm

JBT,

Thanks - I'm guessing it's flow noise, but I will definitely hold them to it.

-Cemil

Sailor
Racing Driver
Posts: 1064
Joined: Wed Jun 24, 2009 5:49 pm
Vehicle: NC
Location: Southie...NOT from " the Shire " :/.

Re: Fuel Pump Noise?

Postby Sailor » Fri Oct 12, 2012 1:12 pm

Mine's a 2006...absolutely no noise from the rear when not moving
Rob


05 NCLE, Cosworth SC,PF01,Ohlins,Selby,GWR exh
"We're only given a tiny spark of madness.We mustn't lose it"(Robin Williams)

cemilbrowne
Learner Driver
Posts: 16
Joined: Thu Oct 11, 2012 2:59 pm
Vehicle: NC

Re: Fuel Pump Noise?

Postby cemilbrowne » Fri Oct 12, 2012 1:18 pm

Hi Sailor,

Thanks for the feedback - it's tough to notice if there's ambient noise (top down especially), but at night, on a quiet street, it's definitely noticeable.

-Cemil


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