Hiya, this noise has just started and wonder if you have any idea what it is,i have steam cleaned the engine lightly and then car stood for 2 weeks.. sounds like its coming from alternator or steering pump but doesnt alter in sound when steering is turned,.or could it be auxilary belt tensioner?
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Re: 05/55 s60 d5 185. whirring from under bonnet
Hi, this noise is usualy caused by dry belts afther engine been washed or driving in the rain , you can buy a belt dressing spray at many auto parts ,spray all belts lightly ,repeat if nessesary until noise is gone....C1
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Hi i have 02 audi a4 slimline. on motorway going 70 mph and to past a car dropped it down to fourth gear probly hit 90mph. Drove for a further hour and a half, and hear a bang under car. car started to loose power. was drivable but hissing noise come out of it when accelerating. Feels like turbo not kicking in. Would this be that the turbo has blown of maybe burst pipe or something. If anyone can share a light on this i would be very greatful. Cheers
your whining noise might be comming from dry belts in order to pinpoint your problem have a jug of water ready before startup open the bonnet then startup if the noise appears pour water over the belts if noise goes away replace v belts
try and get your hands on a code scanner,some small time mechanics have them, plug into the obd2 connection under the steering beside door,beside/just above pull cable for bonnet,i use one myself to get the codes ,read the code before you delete it ,it should read for example "p0131 or whatever"then google it,it could help you find the area where the problem is,hope this helps
HELLO, I HAD THE SAME PROBLEM. I WENT TO THE DEALER AND WHEN THE CAR WAS MAKING THAT WHIRLING SOUND, HE UNSCREWED THE OIL CAP AT THAT MOMENT AND THE NOISE WAS GONE. IT WAS THE PCV VALVE AND THE HOUSING(DON'T KNOW WHAT THAT IS) THAT NEEDED REPLACING. SO TRY UNSCREWING THE OIL CAP WHEN THE NOISE IS PRESENT. IF IT GOES AWAY THEN YOU HAVE THE SAME PROBLEM. THE PCV VALVE NEEDS REPLACEMENT. IF YOU CAN GET A GOOD, TRUSTING MECHANIC THAT CAN DO THIS FOR LESS THAN 350.00, YOUR GOOD. THE DEALER CHARGED ME 650.00 FOR THIS. GOOD LUCK.
hi if you can get it to do it so you can pick the bonnet up and listen check out alternator power steering pump [if fitted] water pumps any thing driven by your belts check the belt for signs of slipping if the noise is presnt you can take your alternator belt of [temparary] run engine see if noise dissapears it sounds like a small bearing yates210456