Fuel Pump Noise??

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Apr 30, 2010 | 07:10 PM

thetitan

Thread Starter

Instructor

Joined: May 2009

Posts: 125

Likes: 0

Fuel Pump Noise??

The driver side fuel pump on my 98 C5 is making a loud constant buzzing noise.
The buzzing noise changes tone when an electrical draw is applied, such as turning on head lights or brakelights.
Does this mean that I need a new pump?

Thanks, Titan

Apr 30, 2010 | 07:18 PM

k0ts

Burning Brakes

Joined: Nov 2007

Posts: 951

Likes: 2

From: Rochester MN

Mine does the same and has for a long time.. So far, no problems and I don't expect any..

Apr 30, 2010 | 08:39 PM

nmacdonald50

Instructor

Joined: Dec 2009

Posts: 139

Likes: 0

From: Monroe NC

I asked a similar question several months ago and was told it's fairly "normal" for the fuel pump to make that noise. I've learned to block it out even though it seems "louder" after long trips.

Apr 30, 2010 | 08:42 PM

thetitan

Thread Starter

Instructor

Joined: May 2009

Posts: 125

Likes: 0

My pump made no noise before I left, and after a 200 mile trip it was quite loud.

Apr 30, 2010 | 09:21 PM

LisaJohn

Drifting

Joined: Sep 2009

Posts: 1,868

Likes: 0

From: Tuscaloosa Alabama

St. Jude Donor '10

My 97 does it too. Sometimes it seems louder.
L

May 1, 2010 | 01:37 AM

zoomz

Burning Brakes

Joined: Jan 2004

Posts: 1,158

Likes: 6

From: Winter Springs Fla

Did any of you try changing the fuel filter ?

How many miles on the cars ?

May 1, 2010 | 02:02 AM

dougbfresh

Le Mans Master

Joined: Nov 2005

Posts: 6,993

Likes: 25

Common on the early cars.

May 1, 2010 | 08:59 AM

thetitan

Thread Starter

Instructor

Joined: May 2009

Posts: 125

Likes: 0

The fuel filter was replaced with a GM filter 2000 miles ago. The car has 59,000 miles.

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May 1, 2010 | 12:09 PM

corvettebob1

Melting Slicks

Joined: Dec 2003

Posts: 3,315

Likes: 17

From: Near Jacksonville Fl.

It's normal on the 97-98 models, they just get a little louder the further you drive when you let it cool off it'll return to it's normal noise level.
Feel good in knowing you have the very best fuel system ever made for stock C5!

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