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Author Topic: fuel pump hissing!?  (Read 5019 times)

Offline joesgti

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fuel pump hissing!?
« on: April 28, 2010, 11:43:31 am »
just noticed last night that my fuel pump hisses after i turn the engine off, i have the autotech fuel pump. ive read on another forum that its normal due to the friction boiling the gas?!  :confused: and is normal.

anybody shed any light??  :smiley:

oh and the car is running absolutly fine, pulling harder than ever!  :smiley:
« Last Edit: April 28, 2010, 11:45:33 am by joesgti »
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Offline S2 Ant

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Re: fuel pump hissing!?
« Reply #1 on: April 28, 2010, 11:47:39 am »
Might just be the pressure dropping back to ambient after the car has stopped as its a pressurised system when running?
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Offline joesgti

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Re: fuel pump hissing!?
« Reply #2 on: April 28, 2010, 11:48:46 am »
i think what i really want to know is if anybody elses does it.
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Offline joesgti

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Re: fuel pump hissing!?
« Reply #3 on: April 28, 2010, 12:54:00 pm »
nobody????  :confused:
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Offline KRL

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Re: fuel pump hissing!?
« Reply #4 on: April 28, 2010, 01:08:25 pm »
Not noticed mine doing it, I still have the standard pump right now.
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Offline joesgti

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Re: fuel pump hissing!?
« Reply #5 on: April 28, 2010, 01:10:02 pm »
Quote from: KRL on April 28, 2010, 01:08:25 pm
Not noticed mine doing it, I still have the standard pump right now.

have you not swapped the internals over yet??
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Offline KRL

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Re: fuel pump hissing!?
« Reply #6 on: April 28, 2010, 01:13:48 pm »
Not yet mate no!
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Offline bacillus

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Re: fuel pump hissing!?
« Reply #7 on: April 28, 2010, 02:25:24 pm »
Check for a snake under your bonnet...   :laugh:

Oh, and no, mine doesn't hiss.
I wonder if your HPFP ring seal could be starting to leak as your upgrade re-uses the old pump ring.
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Offline MAT ED30

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Re: fuel pump hissing!?
« Reply #8 on: April 28, 2010, 02:26:54 pm »
Who fitted it ? How loud is it ?
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Offline joesgti

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Re: fuel pump hissing!?
« Reply #9 on: April 28, 2010, 03:03:23 pm »
Quote from: MAT ED30 on April 28, 2010, 02:26:54 pm
Who fitted it ? How loud is it ?

i fitted it, and not very loud. so does nobody elses do it then?? looks like il be taking it off again  :sad1:
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Offline JPC

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Re: fuel pump hissing!?
« Reply #10 on: April 28, 2010, 03:05:06 pm »
Quote from: joesgti on April 28, 2010, 03:03:23 pm
Quote from: MAT ED30 on April 28, 2010, 02:26:54 pm
Who fitted it ? How loud is it ?

gutted!!

i fitted it, and not very loud. so does nobody elses do it then?? looks like il be taking it off again  :sad1:
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Offline danishmkvgti

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Re: fuel pump hissing!?
« Reply #11 on: April 28, 2010, 04:30:54 pm »
Quote from: JPC on April 28, 2010, 03:05:06 pm
Quote from: joesgti on April 28, 2010, 03:03:23 pm
Quote from: MAT ED30 on April 28, 2010, 02:26:54 pm
Who fitted it ? How loud is it ?

gutted!!

i fitted it, and not very loud. so does nobody elses do it then?? looks like il be taking it off again  :sad1:

my guess is also the o-ring seal that  has been reused  :sad1:
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Offline joesgti

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Re: fuel pump hissing!?
« Reply #12 on: April 28, 2010, 04:33:45 pm »
so if i just replace the o-ring?? do i replace it with a standard one?
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Offline RobH

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Re: fuel pump hissing!?
« Reply #13 on: April 28, 2010, 06:25:32 pm »
I have the KMD jobby and it doesnt hiss or make any noise :wink:
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Offline GTIjames

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Re: fuel pump hissing!?
« Reply #14 on: April 28, 2010, 06:27:36 pm »
naaa you not heard of kmd cam follower horror stories, apr mate bulletproof  :wink:
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