Car Whistles?

[Dougiegreenskala]

Hi guys and gals, hope this is the right place for this post? On starting my 1990 Scala with engine cold, when I up the revs and pull away I get a whistle from engine area? Doesn't last long, goes when engine warmed up. Any ideas on what could cause this ? Cheers in advance.

[bengould]

Hi,

Loose alternator belt would be my first guess.

Ben

[ianaudia4]

Is the whistle more of a sqealling noise, if yes agree with Ben, VW's are notorious for if with a loose (and damp) alternator belt.

[marcus]

I concur, I get this all the time in cold weather.

[klittle]

Agree with all the above, only other thought may be timing belt tensioner starting to wear, alternator or water pump may be worth checking too.

[Dougiegreenskala]

Thanks for the tips guys, thought it might be something to do with a leak in the vacuum somewhere as is a whistle more than a squeal, but will definitely check out the belt first. Good to hear from you Ian, hope you and your Rocco are well.

[ianaudia4]

I'm good Dougie thanks, cars are fine also.

Is the whistle that loud you can hear it from inside the car? I would have thought that if it was a vacumn hose it would be doing it all the time?

[wasted]

Just a thought, but if the car's had any work done on the timing/cam belt, it could be that the tensioner has been overtightened.

[Dougiegreenskala]

Hi again, doesn't do it all the time Ian but can definitely hear it in the car alright, sounds like a bloody turbo lol. Am working away up at Lincoln atm but off home tomorrow night for four days so will investigate further on Thursday. Once again I really appreciate all the help from you guys, still the best forum around.

[mark1gls]

If the sound changes with the revs/sound like a turbo I would check the tension of the cam belt.
Mine used to make a noise when hot but was ok when cold?