Buzz behind driver's seat
Thread Starter
Advanced
Joined: May 2005
Posts: 70
Likes: 0
From: White Plains NY
Buzz behind driver's seat
Hi, I picked up a 98 C5 a few weeks back and am noticing a buzz behind the drivers seat. I'm guessing it's the fuel pump, she's got 95k on the odometer.
The buzz is most noticeable when I first start her up and when idling at a light. It virtually disappears at highway speeds.
Anyone have experience with this?
The buzz is most noticeable when I first start her up and when idling at a light. It virtually disappears at highway speeds.
Anyone have experience with this?
Thread Starter
Advanced
Joined: May 2005
Posts: 70
Likes: 0
From: White Plains NY
Originally Posted by Glennm27
Your guess was a good one. Fuel pump it is...
Racer
Joined: Nov 2004
Posts: 364
Likes: 2
From: Picton Ontario
pump
I noticed the same thing on my '98 when I picked it up and the dealer replaced it and it was quiet for a while but I can hear the new one from time to time. Just turn the radio up a few clicks... 
Apparently, its not a problem.
Apparently, its not a problem.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
My 98 had the same issue. I complained about it when it was under warranty and they changed it out. It significantly decreased the noise.
When you are at highway speeds your fuel demand is greater and the pump is flowing more fuel vise having it returned to the tank via the fuel presure regulator.
When you are at highway speeds your fuel demand is greater and the pump is flowing more fuel vise having it returned to the tank via the fuel presure regulator.
Thread Starter
Advanced
Joined: May 2005
Posts: 70
Likes: 0
From: White Plains NY
Originally Posted by Dustie
I noticed the same thing on my '98 when I picked it up and the dealer replaced it and it was quiet for a while but I can hear the new one from time to time. Just turn the radio up a few clicks... Apparently, its not a problem.
Apparently, its not a problem.Thanks, the noise doesn't really bother me so good to know that it's not a problem. Besides cranking up the stereo a set of straight pipes might also help
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Drifting
Joined: Dec 2003
Posts: 1,586
Likes: 72
From: Upstate NY
Originally Posted by Bill Curlee
Change the fuel filter first. The more restriction in the system the louder it is. BC
