Bosch 040 Just Got More Noisy!?!

[Yeedogga]

Hi guys,

I put an 040 in the car a few months ago. Ran fresh wiring, new relay etc etc

Up until today, you could just hear it humming/sucking away. From inside the car you could just hear over the exhaust & from the outside you could barely hear the pump at all.

Today it has started whining/buzzing and it is significantly louder than normal. Should I be worried?

Edited September 29, 2009 by Yeedogga

[mad082]

it could just be that the bracket has moved and it is touching the side of the tank which is amplifying the sound. or it could be that there is an issue with the pump

[Parag0n]

it could just be that the bracket has moved and it is touching the side of the tank which is amplifying the sound. or it could be that there is an issue with the pump

Have you noticed a change in your fuel pressure at all?

[Yeedogga]

I don't have a gauge so I haven't been able to tell. Car seems to be running fine though.

[turael]

if it makes you feel better, my 040 makes a hell of a lot of noise, all the time. gurgles, buzzes, whining...

very noisy pump. car has always been fine though, been running it for a year or two now.

[bradsm87]

They also get noisy when the mesh on them gets blocked and the pump starts to cavitate. A mate's car did that till we cleaned it.

[old mate]

dont go below 1/4 full

[Parag0n]

I don't have a gauge so I haven't been able to tell. Car seems to be running fine though.

Mate go get an autometer gauge that you can put in your engine bay they're like $20 and hook it up to your regulator, its such a cheap mod for important information if you're running more than base fuel pressure.

[femno]

Check your tank for shit!

Pull the pump out and inspect it for black dusty crap on the bottom. If that or anything else is on the strainer of the pump you need to remove the tank and have it cleaned.

[James_03]

My 044 went this way too, exact same symtoms. Started also getting fluctuating pressure.

Ripped it out and went a 023, still never figured out why it died. Was a genuine 044 too, strainer was clean, good wiring etc.

There just getting so hit/miss now it's not funny.

[britz1]

mine is doing the same.... dont let it run outa fuel like i did stupid move now mine is loud....

[bubba]

My 044 only gets loud when the fuel gets hot (low tank or long drive)

[Yeedogga]

YES! Thats the thing, it only does it when its hot- any ideas why? I want to run it out at WSID tonight but I am cautious if the pump is on its way out...

[bubba]

I really don't think it's anything to worry about, my 044 has been like this for a couple of years now with no issues what-so-ever.

My guess as to WHY is that it's probably working harder to pump the thinner hotter fuel around. It's basically because there is excess fuel travelling to a hot engine bay and back. Standard, our cars run a control module that drops voltage to the fuel pump at idle, these tend to get removed when aftermarket fuel pumps go in.

Edited September 30, 2009 by bubba

[JonnoHR31]

yer mynes been on/off noisy for years, as the fuel gets hot it starts to cavitate in the pump i think. not good for the pump but myne still works...

[T04GTR]

its cavitating. verry common. you can fix it by switching off and then on, but it will come back. just put a 044 in there.

ps. 040 is only rated about 200mls more than a stock gtr pump.

[boostn0199]

nismo drop ins are the best cost abit more but no hassle and 2min swap

[08r3308]

yeah nismo are expensive but looks to be easiest and reliable way to go

how do Bosch compare to nismo pumps?

[Mayuri Krab]

if it makes you feel better, my 040 makes a hell of a lot of noise, all the time. gurgles, buzzes, whining...

very noisy pump. car has always been fine though, been running it for a year or two now.

Same with mine. Mine has a very loud buzz & grgule sound since day 1 of getting it installed when my stock one died. The exhaust noise covers the pump noise up inside the car, however outside its very noticeable when you are near the rear of the car.

Being fine for about close to a year now.