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Author
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Topic: Fuel Pump Noise?
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Jdub07
( O Y O )
Member # 2728
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posted
 
 
Sooo my new Walbro 255 is loud(er) than my stock. It this to be expected?
Also before the install of the new fuel pump my car was at a light just sittin there then it bogged like the key was turned of. Just one bog to about 500 rpms I then came back alive to 900-1000rpms. Very weird.
Well this morning it did the same thing. I was sitting at a red light for about 30 seconds then all the sudden rpms dropped to 500 for about half a second then back to normal just as fast. No stuttering or rough idle. I'm puzzled. ![[Confused]](confused.gif)
Posts: 7282 | Registered: Apr 2003
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94gt
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Member # 3060
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posted
when I put one in my old 94, it was quite a bit louder.
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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Jdub07
( O Y O )
Member # 2728
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posted
okay I feel better about the noise...doesn't sound bad just a little louder.
Any suggestions on the other issue?
Posts: 7282 | Registered: Apr 2003
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92stangLX
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Member # 3252
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posted
The noise is normal. Do you have an adjustable fuel pressure regulator and a fuel gauge? If so, then I would check the fuel pressure and adjust it to factory specs.
Did you change your filter? If not, then I would change this too.
Posts: 5302 | From: San Francisco | Registered: Sep 2003
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1FAST89GT
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Member # 5071
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posted
mine is louder too
Posts: 4915 | From: VALLEJO | Registered: May 2004
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stangless
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Member # 1414
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posted
mine is loud as hell.. luckily the subs take care of that.. ![[Razz]](tongue.gif)
Yohaulin has the same set up as yours and is a little bit louder than mine, so don't trip.
[ October 04, 2005, 06:56 PM: Message edited by: Jmir018 ]
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Posts: 4634 | From: bay | Registered: Jun 2002
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Jdub07
( O Y O )
Member # 2728
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posted
Okay...the noise is normal. Thanks ![[Frown]](frown.gif)
Yet there is something defenitly wrong. Just now driving back to work from lunch I was cruising on the freeway and the car was missing. Not all the time very intermitant <-spelling. Like one blip every 10 seconds. Like a stall or almost like it isn't getting enough fuel...almost backfires. Car is running very strong and responsive but every little while it will miss for a split second. Its getting worse. WTF. It started to do it before the fuel pump and fuel filter (filter is two days old).
I guess run the codes?
Posts: 7282 | Registered: Apr 2003
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BlownCobra98
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Member # 5943
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posted
Yes the 255 walbros are loud if you want to tone down the noise I suggest Kennebell BAP (boost a pump) it worked for me.
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Never enough Horspower always thirsty for more.
Drive it like you stole it.
Representing HCI Motorsports.
Posts: 142 | From: Carmichael | Registered: Aug 2005
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