Author Topic: strange noise but dont know what  (Read 2798 times)

Offline welshdean

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strange noise but dont know what
« on: 13 June 2013, 17:56 »
I've recently noticed there's a strange noise coming from the engine somewhere when I start the car from cold. The only way I can describe it is like a piece of carboard being put into a fan when it's turning. The noise is not loud and I've not got an idea where it's coming from atall, but I shall do some investigating when the weather is not sh!t.
But can anybody give me some idea what to check when I'm having a snoop around.

Thanks

Offline gm8

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Re: strange noise but dont know what
« Reply #1 on: 13 June 2013, 18:00 »
if its AUM maybe secondary air pump

Offline welshdean

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Re: strange noise but dont know what
« Reply #2 on: 13 June 2013, 18:09 »
It's an agu mate

Offline dom

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Re: strange noise but dont know what
« Reply #3 on: 13 June 2013, 18:26 »
It might be a loose belt :undecided:

Offline Jin_C

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Re: strange noise but dont know what
« Reply #4 on: 14 June 2013, 10:15 »
Starter motor?
1.8T AGU, K03s, 007p, pipercross panel filter, G60 + VR6 clutch and flywheel, silicone TIP, decat + boost hoses, JOM coilovers

Offline welshdean

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Re: strange noise but dont know what
« Reply #5 on: 14 June 2013, 11:46 »
Nah it's definitely not the starter motor, as I've already got the goose in my starter motor LOL.

I started it this morning and didn't notice anything

Offline Jin_C

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Re: strange noise but dont know what
« Reply #6 on: 14 June 2013, 12:59 »
So you have a symphony of sounds when your car starts.

I am currently enjoying a screeching sound when starting from cold for around 5 minutes that is due to the non genuine aux belt tensioner.

I would check that out, as soon as you have started the car, place a spanner on the notch used to de-tension the belt and move it slightly either way and check for change in noise. Be careful though, fast moving belts and pulleys tend to rip off things that get trapped in them.
1.8T AGU, K03s, 007p, pipercross panel filter, G60 + VR6 clutch and flywheel, silicone TIP, decat + boost hoses, JOM coilovers

Offline Dalo Harkin

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Re: strange noise but dont know what
« Reply #7 on: 14 June 2013, 13:09 »
cardboard in a fan sound - is there some cardboard in the radiator fan  :grin:
ARZ K03s, Oettinger Side Skirts, R32 front, Carbon stage 2, Forge 007p (yellow spring), Forge Actuator (yellow spring), Pipercross panel filter with DSG parts, N249 and N112 deleted, SAI deleted, Carbon canister deleted, Rear wiper deleted, Long Life turbo back custom exhaust with 200 cell sports cat, VR6/G60 clutch kit, Creation Motorsport TIP, Catch can, 'Wellycooler', K04 charge pipe, S3 ported inlet manifold - looks pretty standard on the outside though :)

Offline welshdean

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Re: strange noise but dont know what
« Reply #8 on: 17 June 2013, 18:35 »
Hi again,

Just wanted to let you know of the recent noose with this car. When I start it up first thing in the morning the sound is like a hundred locusts lol. Any ideas as after 5 minutes it clears and goes away

Offline navmk4gti

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Re: strange noise but dont know what
« Reply #9 on: 17 June 2013, 19:33 »
May be the oil taking time to get up the engine when cold.. so sounds tapety an noisey until it warms up and gets around.. take it when its warm it ok?

My 4mo did this when it was snowing :undecided:
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