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*Another* Fuel Hose Failure

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Old 08-12-2011, 03:28 PM
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SH || NC
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Default *Another* Fuel Hose Failure

At dealer now with my replacement section . Split on me this morning while loading up for a DE tomorrow!

Leith Porsche FTW
Old 08-12-2011, 05:30 PM
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DHI
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What fuel hose?
Details please.
Old 08-12-2011, 05:57 PM
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SH || NC
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I am compiling a FAQ, but here are a few of my pics from today. Before fix fuel pressure was ~18#













Fixed



Old 08-12-2011, 07:02 PM
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Q&A
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Can you get to the fuel pump easily to check how it looks ?
And if so where is it located exactly
Old 08-12-2011, 07:24 PM
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Scott,

I've just done a couple of searches on that detailed step by step write up one of the guys posted on how to replace the hose. Great write up, pictures and description of the process. I'm going to be at the Glen for five days staring the 25th and I want to get this done before I go.

Good thing you had your event before getting to the track.

If you can find it great and have a smooth event!

Thanks,

John
Old 08-12-2011, 07:28 PM
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996FLT6
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Can't u duct tape it? Mike
Old 08-12-2011, 08:19 PM
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JohnPG
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Sorry Scott,

Found the link, didn't look far enough through this tread: https://rennlist.com/forums/996-gt2-...-wont-rev.html

Great write up by ninerguru and supporting documentation by John
Old 08-12-2011, 09:50 PM
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Posted the compiled FAQ (link)
Old 08-13-2011, 12:17 AM
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FFaust
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Originally Posted by DHI
What fuel hose?
Details please.
Look familiar
Old 08-13-2011, 07:39 AM
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SH || NC
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Originally Posted by Q&A
Can you get to the fuel pump easily to check how it looks ? And if so where is it located exactly
FP is under the battery tray. Not terribly difficult to get to (link) See the compiled thread for more info (link)
Old 08-18-2011, 12:29 AM
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Jetmech
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guys, this happen to me, and I can share some insight. don't run your cars low on fuel at the track...It happend twice...now I stay above a 1/4 tank, and I have not had this problem. Something about the fuel cooling the pump and line...and when low...not enough cooling. Just something to ponder....
Old 08-18-2011, 12:55 AM
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996FLT6
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If it was a true u-shaped hose this wouldn't be an issue. Would be nice if someone can fabricate a u shaped aluminum elbow that would be awesome. Mike
Old 08-18-2011, 09:09 AM
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Originally Posted by Jetmech
guys, this happen to me, and I can share some insight. don't run your cars low on fuel at the track...It happend twice...now I stay above a 1/4 tank, and I have not had this problem. Something about the fuel cooling the pump and line...and when low...not enough cooling. Just something to ponder....
I can say that my tank was ~1/4 when this happened, but I hadn't been to the track in ~3months; just weekend coffee drives.

Originally Posted by 996FLT6
If it was a true u-shaped hose this wouldn't be an issue. Would be nice if someone can fabricate a u shaped aluminum elbow that would be awesome. Mike
Not sure what you mean; the factory hose is u-shaped?? Using metal IMO would be a bad idea; flexibility is needed in there.
Old 08-18-2011, 11:38 AM
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It's worth repeating, the pump hose failure was caused by "excessive fuel pressure" in my 2004 the dealer told PCNA. The failed pressure regulator was replaced with 993 110 199 00, in addition to the updated feed pump 996 620 057 91 (11/07). Check your regulator pressure also during this R/R.
Old 08-18-2011, 11:53 AM
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Originally Posted by JMcD
It's worth repeating, the pump hose failure was caused by "excessive fuel pressure" in my 2004 the dealer told PCNA. The failed pressure regulator was replaced with 993 110 199 00, in addition to the updated feed pump 996 620 057 91 (11/07). Check your regulator pressure also during this R/R.
Yours, and Bob R.'s, are the only ones I have read about failing early (2004).

All others are 5+years. I wouldn't say the FPR is the only cause, but a failed FPR can't help matters. This quote was interesting from Bob's post; the dealer highlighted that the hose section was uprated from the factory.

Originally Posted by Bob Rouleau
A funny thing happened on the way home in my GT3. It felt like I had run out of gas. The car sputtered to a stop. Flat bed to the dealer. He called me to say that they thought it as the fuel pump. When they went to install a new one they discovered a split hose from the pump. The pump and the hose in question are located inside the fuel tank. What was interesting is that the hose that failed was a made of black rubber. The replacement fuel pump came with a much sturdier reinforced ribbed plastic hose. The mechanic commented "judging by the difference between the hoses, this isn't the first time this has happened."

So, if your car suddenly quits on you, it may be that some early build 2004 GT3's have this faulty hose in them. I will have my wife's car inspected shortly to see if hers has the same defect. I'm very glad this did not happen on the track where a sudden loss of power would have meant an "off".


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