Noticeable fuel pump whine normal?
Racer
Joined: Oct 2004
Posts: 333
Likes: 3
From: Sacramento California
Mine is extremely loud as well. When i turn on turn signals the whine changes pitch with the signal blinking. It's annoying. It seems to have gotten noisier lately though, I know I need to replace my fuel filter though and am doing that tomorrow.
A new thing today, when i turn the key to the on position and the pump turns on to prime the fuel system, i'm hearing a sloshing noise (sounds like gas is sloshing around in the tank). Never noticed it before...hope the pump isn't dying.
A new thing today, when i turn the key to the on position and the pump turns on to prime the fuel system, i'm hearing a sloshing noise (sounds like gas is sloshing around in the tank). Never noticed it before...hope the pump isn't dying.
Race Director
Joined: Nov 2003
Posts: 12,346
Likes: 5
From: Mustang OK
Partway through model year 2003 (beginning with 2003 VIN 35114929 produced on 11/25/02 so I've read), GM introduced the newly redesigned FFS fuel system on the C5. Later model year 2003 and all 2004 C5s have the redesigned FFS fuel system which was carried over to the C6. With this new design, the fuel filter was moved inside the left fuel tank and is part of the left fuel sender assembly. The left fuel sender assembly also includes a fuel level sensor, the fuel pump and reservoir assembly, the fuel pump strainer and the primary fuel pressure regulator. The left fuel sender assembly is replaced as a complete unit and the tank has to be dropped to replace the sender unit assembly.
The following link contains more info on the redesigned FFS fuel system:
2003 - 2004: Service Information: Fuel Tank System
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 243
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
HTH
Drifting
Joined: Feb 2005
Posts: 1,592
Likes: 3
From: St Louis MO
I could hear mine whining. Had the fuel filter changed last week. Whining sound has all but disappeared...or my hearing could be getting worse.
