Technical "Dry" noise on start up

[CATATONIC]

I have an L reg Punto SX75. When the car is first started after a long period of just sitting there (ie in the morning and coming home from work) and when (Is suspect) the throttle is engaged I can hear a fairly loud "dry" sounding noise coming from the bonnet (possible driver's side). Once the car has been running for a few minutes the sound stops. Could there be something wrong with the throttle? Or could this be something else?

Any ideas and help would be greatly appreciated.

Andy

 

[Digimods]

Could it be the alternator bearings? I'm undsure, but my old Seicento did this! I sprayed WD40 in it and it stopped for a bit

 

[Lampredi]

Symptoms sound a wee bit like a defective Cam Belt Tensioner - but the sound you normally get (I got it and others have mentioned the same) is more of a 'squeal'. It usually happens when it's cold (first thing in the morning) and goes away after about a mile. It gradually gets worse.

Here come da judge...

 

[JonnyBoy]

I had a nasty "squeal", turned out to be the water pump. It was always worse from cold. I managed to find a brand-new water pump on ebay, £13 in. delivery! Bargain! Not sure about a "dry" noise though. Do you mean a scraping sound?

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[CATATONIC]

Thanks for the advice guys! it gives me some places to start looking at and\or mentioning to a garage if I can't solve it.

Describing the noise is hard. The best I could explain it as is "dry" as there's no rattle or spluttering, just a fairly constant noise that can be heard above the normal engine noise. This does disappear after a few minutes of driving.

I do have a squeal from the car when I first turn the ignition on, I assumed this was probably a belt slipping. Could these two be linked?

 

[joel]

When starting up my car after standing a day or so it would make a quite funny noise, dry would maybe be the fitting word as Catonic sais. Anyway, it disepeard after 40.000 miles service, at the service I also changed the cam belt so I dont know what fixed it.