alan-g-w
Member
Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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I was driving about last night when my lights started getting brighter with the acceleration of the engine. I went to get petrol, then when I came back out to drive off the car wouldn't start. Am I right in thinking that since the lights were getting brighter and dimmer with the engine speed it's a problem with the alternator? Also, when the engine's running and I give it little revs there's a noise like a knackered bearing when it's on over run.
Cheers for any input.
[Edited on 03-12-2009 by alan-g-w]
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Richardhhha
Member
Registered: 29th Sep 07
Location: Croydon, Greater London
User status: Offline
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yeah it does sound like the alternator has died.. Can you get the car started tho as you can chek wether its the battery not holding charge or the alternator..
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alan-g-w
Member
Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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Aye mate, charging it as we speak. How would I check for sure if it's the battery or the alternator?
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grez12
Member
Registered: 30th Aug 08
Location: cleethorpes dn35
User status: Offline
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start it up then turn on all electrics stereo/lights/hazards/heaters ect and then remove the battery if the car still stays running for more than 5mins with no battery then the alternator works fine if it cuts out the alternator is duff worked everytime for me
but i would say it will cut out as it sounds like alternator
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Richardhhha
Member
Registered: 29th Sep 07
Location: Croydon, Greater London
User status: Offline
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or how about just putting a volt meter accross the batters when everything is running (light, heaters, heated rear screen, wipers ect) then if the battery is charging at 14.5v then its a good alternator if it charges at 12 then duff alternator
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grez12
Member
Registered: 30th Aug 08
Location: cleethorpes dn35
User status: Offline
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quote:
Originally posted by Richardhhha
or how about just putting a volt meter accross the batters when everything is running (light, heaters, heated rear screen, wipers ect) then if the battery is charging at 14.5v then its a good alternator if it charges at 12 then duff alternator
yea thats the propa way BUT my ways cheaper if you dont have a tester which most average joes dont, cant go buying testers theres a reccession on atm lol  
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tom130691
Premium Member
Registered: 13th Sep 08
Location: Daventry
User status: Offline
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£5 at most for a mulitmeter lol
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alan-g-w
Member
Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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Cheers lads, gonna have a look at it tomorrow.
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grez12
Member
Registered: 30th Aug 08
Location: cleethorpes dn35
User status: Offline
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quote:
Originally posted by saxo_tom
£5 at most for a mulitmeter lol
times are hard matey 
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