LOUD fuel pump after running awhile
07-20-2004 | 12:01 AM
#1
Thread Starter
Member
Joined: May 2001
Posts: 242
Likes: 0
From: Castle Rock, CO
Car: 89 Turbo Trans Am, '14 Forester XT
Engine: 3.8 Turbo V6
Transmission: 2004-R
Axle/Gears: 3.27
LOUD fuel pump after running awhile
For reasons unknown to me, the fuel pump seems to un excessively loud after running awhile. I just installed a Walbro 340 HP pump in my 87 IROC with the LB9 and when I turn it on, I get the usual 2 second hum of it pressurizing. The pressure is at a constant 40 psi at idle, whether the pump is loud or not. Also, when I drive awhile at night, it is not as loud. Can someone tell me what is the deal here?
07-20-2004 | 09:26 AM
#2
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Joined: Sep 2002
Posts: 1,500
Likes: 0
From: Dallas/Fort-Worth
Car: 1988 Camaro IROC-Z
Engine: 350 TPI (L98)
Transmission: T56
Axle/Gears: 9-bolt 3.45
I'm not mcuh help on the subject. Is it possible that the lines are clogged from the TPI rails down to the tank?
My walbro is sometimes louder than others, but I think that is just me.
My walbro is sometimes louder than others, but I think that is just me.
07-20-2004 | 01:50 PM
#3
Thread Starter
Member
Joined: May 2001
Posts: 242
Likes: 0
From: Castle Rock, CO
Car: 89 Turbo Trans Am, '14 Forester XT
Engine: 3.8 Turbo V6
Transmission: 2004-R
Axle/Gears: 3.27
I am pretty sure that they are not......but that would not explain why it acts that way only when it has been run for awhile.
Last edited by coolguywalt; 07-23-2004 at 02:14 PM.
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