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Thread: Vectra 1.9 CDTi 150 Alternator / battery voltage

  1. #1
    Regular Member trucklord's Avatar
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    Red face Vectra 1.9 CDTi 150 Alternator / battery voltage

    Hi There
    Can anyone tell me what the correct voltage the alternator should be charging the battery to please.
    Volt tested my battery today and it was just over 13v ( about 13.2 ) on the needle.
    I have a slight rattle / tickticktick noise coming from the alternator area, ( and putting a LONG bar on the altetrnator housing and listening to it at the end you can hear what sounds like a dodgy bearing ? in there )
    Would this voltage be enough to cause a very intermittent power steering loss when i start the car ?

    Thanks in advance folks.
    Eric

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    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

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    12.5 +/- .2v from battery

    14.4v from alternator no load

    An roughly 13.9v with lights heaters etc on

    Hope that helps

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    Regular Member barney490's Avatar
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    The tick tick noise is probably the overrun pulley, but if the alternator is not putting out 14 volts as said above, it's probably on the way out.

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    Regular Member alcutler's Avatar
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    Vehicle : vectra c 1.9cdti 120 estate

    Trim : design



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    Hi Eric,
    Is 13.2 what your battery is reading without the engine running - that seems a little bit high for the battery - with the engine running the alternator should be putting out about 14.4 volts - I wouldn't think that the readings you have would stop the power steering operating but loss of power steering is a classic sign of alternator failure on that engine



    Sorry Critch yours went on as I was typing!

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    Regular Member trucklord's Avatar
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    Thanks folks.
    I only tested from the battery whilst the engine was running 13.2v. Even revving didn't alter it.
    Havent tried it with the lights / heater on etc.
    will try again asap - borrowing a multimeter to check digital readout.
    Only had the car a week but already lots of thing to sort out.
    The How 2 section on here is a goldmine !
    To do: EGR blanking plate
    swirl flap bar £1 fix - currently all shiny on my sideboard.
    swirlflaps 1,2,and 4 just vibrating round and round coughing crud all over the place.
    power steering.
    ...

  6. #6
    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

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    13.2 running with no change is a dead. Well fighting for life alternator so that needs to be added to list aswel

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    Regular Member trucklord's Avatar
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    have just planted the money tree, hope it comes to fruition soon.
    Really wish my BMW hadnt blew up last week, now got 2 cars on the drive to fix.
    Its all coming back to me why i swore never to have another vauxhall 5 years ago...

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    Regular Member alcutler's Avatar
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    Vehicle : vectra c 1.9cdti 120 estate

    Trim : design



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    Quote Originally Posted by trucklord View Post
    have just planted the money tree, hope it comes to fruition soon.
    Really wish my BMW hadnt blew up last week, now got 2 cars on the drive to fix.
    Its all coming back to me why i swore never to have another vauxhall 5 years ago...
    Well it looks like you will get plenty of rain for your money tree - If it helps I replaced my alternator and bought it from http://www.ebay.co.uk/itm/VAUXHALL-V...#ht_530wt_1037 - (make sure you have the Denso alternator and not the Bosch, which is slightly different - but they can supply both types) fitted it well over 12months ago to my 1.9 cdti (120) and never had a problem - I've had three off them for other cars and all fitted and work fine, as well as a couple of starter motors. I am not connected with the business - but have always had good,friendly service and if you contact them saying you need the part urgently they will usually deliver next working day. Hope this helps a bit.
    Last edited by alcutler; 5th June 2012 at 08:37.

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    Regular Member Sebastian's Avatar
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    Vehicle : Vectra Estate

    Trim : Elite

    Engine : 1.9 DTH

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    Funny u say that about denso I had fitted denso replacement and lasted exactly 13 months and then smoked itself to death...
    fitted bosh one which is bit smaller and easier to fit never looked back

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    Regular Member alcutler's Avatar
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    Vehicle : vectra c 1.9cdti 120 estate

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    Hi - I wasn't recommending Denso - just saying there are two types fitted and I understood they were a different fitting - but obviously if you replaced a Denso with a Bosch they must be the same fittings. The one this guy supplied to me was not a genuine Denso alternator but a Denso type and I have no complaints (so far).

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