Fuel pump question

mustangLX92 · 01-08-2002, 03:44 PM

New fuel pumps are not supposed to whine loud, right? I was looking at this 93 GT and the fuel pump was real loud. The guy told me it was new and his mechanic said they do that sometimes. I always thought they were supposed to make a quiet humming sound.

Thanks.

Mad Horse · 01-08-2002, 04:48 PM

Depends on how loud you are talking. I have a new 190lph fuel pump and it still whines or humms. It is not as loud as the old one. My point is, my new one has whined from day one. You can't always here it. I know from experience the whine changes depending on the amount of gas in the car. Either way it shoudn't be a deciding factor in purchasing the car. Ask the guy to show a receipt for the fuel pump.

91GTturbo · 01-09-2002, 08:30 AM

Is it an in tank or an inline pump? My inline can be heard for miles, just kidding, but it it loud. I've heard some in tank pumps that were pretty loud to. Anything new and louder than your use to is going to seem really loud right now, you'll get use to it. Check your fuel pressure, if it's ok, the pump's ok.

MustangDanny · 01-09-2002, 09:14 AM

I just put a brand new 190 lph pump in and I can hear it humm... it's quiet, but I still hear it over my exhaust. But I guess it's quiet to me because my stock one was original with 170K + miles on it so that thing was singing to me!

01-08-2002, 03:44 PM	#1
mustangLX92 Registered Member Join Date: May 2001 Location: Maryland Posts: 138	Fuel pump question New fuel pumps are not supposed to whine loud, right? I was looking at this 93 GT and the fuel pump was real loud. The guy told me it was new and his mechanic said they do that sometimes. I always thought they were supposed to make a quiet humming sound. Thanks. __________________ Motorsports springs, Lakewood drag struts, Southside rear lower arms. Motorsports upper arms. Lakewood Drag shocks. Southside rear drag springs, sub frames, 3.55 Gears, Cobra intake, 70mm TB, GT40 heads, X Cam, 1.6 Crane RR's, 110lph fuel pump, AFPR, offroad h pipe, Flowmaster catback, 1 5/8" Motorsport headers, under drive pulleys, cold air induction, Black Magic Fan, Pro 5.0, Weld Draglites.

01-08-2002, 04:48 PM	#2
Mad Horse Registered Member Join Date: Sep 1998 Location: Dayton, OH., United States Posts: 467	Depends on how loud you are talking. I have a new 190lph fuel pump and it still whines or humms. It is not as loud as the old one. My point is, my new one has whined from day one. You can't always here it. I know from experience the whine changes depending on the amount of gas in the car. Either way it shoudn't be a deciding factor in purchasing the car. Ask the guy to show a receipt for the fuel pump. __________________ 88GT Performance Mods: 3.73 gears, T-5Z trans, King Cobra clutch, Pro 5.0, Alum. DS, WMS Xtrac subframes, DynoMax Cat-back, PS91 Coil, March alum. Pullies, Fluidyne Rad, Elec fan Cosmetic Mods: Color change interior & exterior, Cervinis Ram air hood, 16" Ponies, LX Taillights. "Nip it in the Bud"

01-09-2002, 08:30 AM	#3
91GTturbo Registered Member Join Date: May 2001 Location: Valdese, NC Posts: 361	Is it an in tank or an inline pump? My inline can be heard for miles, just kidding, but it it loud. I've heard some in tank pumps that were pretty loud to. Anything new and louder than your use to is going to seem really loud right now, you'll get use to it. Check your fuel pressure, if it's ok, the pump's ok. __________________ 91 single turbo vert

01-09-2002, 09:14 AM	#4
MustangDanny Registered Member Join Date: Nov 2001 Location: Dover, DE Posts: 70	I just put a brand new 190 lph pump in and I can hear it humm... it's quiet, but I still hear it over my exhaust. But I guess it's quiet to me because my stock one was original with 170K + miles on it so that thing was singing to me! __________________ -- -1991 LX 5.0 Sedan, 5 spd (new 'Z' tranny), 3.73, aluminum DS, Hedman headers, 190 LPH, MAC CAI, Flowmaster catback. (170K miles on motor) Best ET: 14.434 @ 96.04 MPH - 2.205 60' (Radials) My Notch

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