sophie21 0 Posted October 15, 2012 Share Posted October 15, 2012 Hey all,I have a 55 plate 1.0 Aygo with 70k miles. There has been whining noises coming from my engine I have changed my water pump as many people have said it is a common thing to go, but the whining is still happening. It doesn't happen every time I start her mainly when she is cold. I have also checked my clutch and starter which appear to be fine.Would be great if someone could help?!Many thanks Quote Link to post Share on other sites
Big Auris 1 Posted October 16, 2012 Share Posted October 16, 2012 Hi sophie21 i would suspect the Alternator causing your whine, remove the Alternator drive belt, start the engine and let idle if the noise has gone it is the Alternator. Some cars have whine from the Alternator that does not cause any trouble, it can be the Alternator charging if there has been a big load put on the Battery hope this may help. Quote Link to post Share on other sites
sophie21 0 Posted October 16, 2012 Author Share Posted October 16, 2012 Thanks for replying, the only trouble is that it doesn't make the horrible noise all the time so would be hard to find out if it is the alternator, when it does, it stops if I turn her off and on a few times. Is there any chance it could be something internal? Quote Link to post Share on other sites
Big Auris 1 Posted October 16, 2012 Share Posted October 16, 2012 The simplest thing is as i suggested remove the belt and allow the engine to idle, if it is internal the noise will still be there if not the fault is in some of the parts driven by the belt. If its still apparent after the belt is removed it may be some thing like the timing chain but i wouldnt think will be the chain Quote Link to post Share on other sites
Richard Overfield 0 Posted October 17, 2012 Share Posted October 17, 2012 Whining engine? I know exactly what's wrong.Your engine is married. Just get your engine a divorce and the whining will go away. Quote Link to post Share on other sites
sophie21 0 Posted October 17, 2012 Author Share Posted October 17, 2012 Thanks so much for your help will try that and see what happens! :)Also my engine is very happily married to my gear box! Quote Link to post Share on other sites
ThePermanentProject 0 Posted October 20, 2012 Share Posted October 20, 2012 2nd the altenator vote. Have same symptoms here (although minor). Quote Link to post Share on other sites
andrew macpherson 0 Posted October 21, 2012 Share Posted October 21, 2012 Mine was the water pump. Siezed solid at 97K. It was the new model as it was replaced under warranty at 2nd service. My Aygo is nice and quiet now. Did you get a new drive belt? Could be that, as mine was shreeded around the pully and needed to be replaced. Quote Link to post Share on other sites
acetip 55 Posted October 22, 2012 Share Posted October 22, 2012 i seem to get the same type of sound coming from my kichen.I find it if i tell her to shut up it 'sometimes' works. Quote Link to post Share on other sites
kithmo 268 Posted October 26, 2012 Share Posted October 26, 2012 If it's the alternator, the pitch of the sound will change when you load it up. When the whining occurs try switching the head & fog lights & rear screen heater on, if the noise changes pitch then it is the alternator or the alternator drive belt. As well as the bearings, a faulty diode in the alternator can cause it to whine, this is sometimes (but not always) accompanied by a slight glow from the Battery light. Quote Link to post Share on other sites
averageuser 0 Posted November 1, 2012 Share Posted November 1, 2012 Hello!In order of decreased probability:Belt/belt tension/bearing of alternator/bearing of water pump/belt tension roller bearing.When noise comes in cold or humid weather, almost definitely it is belt. I have used to touch exposed warmed running belt (very, very danger!!!) with lump of colophony (resin, resembling amber, used commonly by string instrumentalists). Once it covers friction surfaces by thin film, traction increases and noise gone for months. Quote Link to post Share on other sites
sophie21 0 Posted November 26, 2012 Author Share Posted November 26, 2012 Thank you for all of your suggestions it was in fact my alternator, now fixed and back to her normal self!!!!Thanks again :D Quote Link to post Share on other sites
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