Loud fuel pump

Phoenix0783 · Aug 12, 2014

I assume that's what it is since it's an electrical motor noise. Happens when I'm stopped at a light. It comes and usually shuts off about about 10 seconds. If I just barely touch the throttle, that will stop it too. Do you think I'm correct in my assumption?

RichV · Aug 12, 2014

Fuel pump is usually a loud hum coming from the trunk area. When the FP gets loud it does not change tone in my experience.

Phoenix0783 · Aug 13, 2014

RichV said:
Fuel pump is usually a loud hum coming from the trunk area. When the FP gets loud it does not change tone in my experience.

Loud hum would describe it. Does that mean it's getting ready to go out?

RichV · Aug 13, 2014

You know most will say yes, including myself. I did have a buddy with a loud one that lasted over a year, he eventually replaced it anyway.

Phoenix0783 · Aug 13, 2014

Cool, thanks

Mack · Aug 14, 2014

I have a very loud fuel pump as well. Replaced it with a new one, still makes noise. Very annoying... But it's been like this for over 2 yrs now.

Phoenix0783 · Aug 29, 2014

Well it gave up the ghost today. No priming or anything. Checked fuse and inertia switch. Parts store was able to get one in. Replacing tonight

Phoenix0783 · Aug 30, 2014

The new pump still gets loud sitting at intersections sometimes. Any thoughts?

ttocs · Aug 31, 2014

how loud are we talking about I mean louder then when it primes prior to starting it? Get a louder exhaust BAM problem solved

Phoenix0783 · Aug 31, 2014

ttocs said:
how loud are we talking about I mean louder then when it primes prior to starting it? Get a louder exhaust BAM problem solved

Louder than when it primes, yes. It's pretty audible over the exhaust.

It's got Flowmasters on it so it's not exactly quiet.

ttocs · Aug 31, 2014

I can't really remember ever hearing my fuel pump even when it was stock other then when I primed but I am not a motor expert by any means.

Phoenix0783 · Sep 1, 2014

It should be running the entire time the engine is, right? No cycling? 97 Cobra since I don't think I mentioned.

kenny150r · Sep 7, 2014

Is your AC working? The A/C cycles on and off if it is low on r134a and the compressor clutch can make some noise if burned out!

Phoenix0783 · Sep 15, 2014

kenny150r said:
Is your AC working? The A/C cycles on and off if it is low on r134a and the compressor clutch can make some noise if burned out!

Good thought but the a/c wasn't on during any of these instances.

Phoenix0783 · Sep 19, 2014

Bump.

Twista · Sep 19, 2014

Mine was super loud because i didnt have a back seat or anything back there. Soon as i put a back seat in.. its pretty quiet now.

I replaced my pump with a walbro 255lph i think and it was loud as the bad one right after the install. That all changed when the seat cushion was installed.