Volvo RWD 200 Forum

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91 240 not charging 200

posted by  someone claiming to be waynewatson on  Tue Jun 22 15:37 CST 2010 [RELATED]

My 240 isn't charging. Using my digital volt meter, I have 12.38v at idle, I rev it up and voltage drops to 12.32v. Any ideas? Back story is that I've had this sedan for a few months, the PO put a rebuilt alt on it. It wasn't charging when I got it, found out that the wiring on the alt had came loose I reconnected it and all seemed well till a few weeks ago.








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    91 240 not charging 200

    posted by  David Samuels on  Sun Jun 27 05:19 CST 2010
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    last visit: Mon Oct 20 12:23 CST 2014
    [RELATED]

    Without starting, does your alt light come on? If not, change the bulb. The bulb is part of the circuit and without continuity, you will not get a charge.








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    91 240 not charging 200

    uid 12839's pic
    posted by  Paul Driver of Inga on  Wed Jun 23 15:04 CST 2010
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    last visit: Sun Mar 25 16:42 CST 2012
    [RELATED]

    First turn your key to Pos II and see if all the idiot lights come on. If they don't check the frame of the alternator to the engine block for resistance. Should be Zero Ohms, and if not the ground wire from the Alt Frame to the engine block is open. Without that ground you will not get the idiot lights and your system will not charge.

    If you still don't have idiot lights and you do have a ground to the block there may be a problem with the little red wire.

    Then make sure you have a good ground to the engine block and to the battery.

    After that check the brushes and see if they are worn to nubs.

    Good Luck,

    Paul








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    91 240 not charging 200

    posted by  geof on  Wed Jun 23 06:51 CST 2010
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    last visit: Sun Oct 12 01:33 CST 2014
    [RELATED]

    There should be 14 to 15 volts from the alternator at the battery. So, connections, regulator, or alternator aren't right.







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