whining noise from the rear

**onesilop** · 14th June 2011, 02:28 PM

On the weekend as I was warming up the engine and walking around the back of the defender, there was a sound like a whining noise. I think it is some kind of fuel pump but I dont think it has made that noise before. It basically made the same noise the entire time the engine was going.

Any idea if this is a "Normal" noise or is something about to go bang?

it is a 99 TD5 defender.

**Scouse** · 14th June 2011, 02:41 PM

Probably just the pump but they can appear noisier than usual if the fuel level is low.

or on the way out

**Benny_IIA** · 14th June 2011, 03:42 PM

should be the fuel pump.

you should hear the same sound when the key is turned to the second stage.

**Benz** · 14th June 2011, 07:59 PM

my fuel pump is really loud and the sound changes a the fuel sloshes around.

i guess it's normal.... it still works =D

**justinc** · 14th June 2011, 08:05 PM

Any rear seat passengers???

Boom - Boom!

JC

**onesilop** · 15th June 2011, 08:08 AM

Originally Posted by Scouse

Probably just the pump but they can appear noisier than usual if the fuel level is low.

or on the way out

I had assumed that it was the pump, and feared that it was on the way out. It is going in for a service next week I will get the mechanic to take a look.

**hans** · 15th June 2011, 10:46 AM

had the same problem 3 years ago , a very noisy high pitch noise from pump , drop the tank and fitted a brand new pump and guess what same fault, have put up with it since and only time it,s noisy is when the fuel is below half , good luck let me know how you went
regards Hans

**onesilop** · 15th June 2011, 04:09 PM

Originally Posted by hans

had the same problem 3 years ago , a very noisy high pitch noise from pump , drop the tank and fitted a brand new pump and guess what same fault, have put up with it since and only time it,s noisy is when the fuel is below half , good luck let me know how you went
regards Hans

The tank was full when I noticed the noise, not sure that bodes well for me....

**bee utey** · 15th June 2011, 05:59 PM

Once when I heard a very loud in-tank fuel pump it turned out to be the outlet hose kinked 90% closed. I suspect it was over pressurising/blowing off its relief valve. Filter change time? Fuel pressure regulator too high?

**Frenchie** · 16th June 2011, 10:22 AM

I have had to replace the pump before, not cheap

Howveer you may be able to save it - mine started whining so I pulled it out and it was clogged with algae, a good clean and the whining went away. The hard part is getting the pump out, there's a thread on how to make an access hole in the rear floor somewhere.

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