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AMP light on after alternator replacement?? 140-160 1971

posted by  145volvowayne on  Fri Sep 4 09:23 CST 2009
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last visit: Mon Apr 15 08:25 CST 2013
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I just replaced my alternator with a Remy brand. All 4 wires connected to the correctly labeled posts, very simple job. So why is my AMP light on when my key is OFF???

Thanks,
Wayne

--
Wayne








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    AMP light on after alternator replacement?? 140-160 1971

    posted by  volvorelix on  Fri Sep 4 10:38 CST 2009
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    last visit: Thu Oct 23 21:56 CST 2014
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    If it were a Bosch alternator, it'd be that your rectifier diode is bad. But a Remy...? Not familiar with that one.

    Best,

    Cameron
    444,122SC
    Rose City








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    AMP light on after alternator replacement?? 140-160 1971

    uid 37336's pic
    posted by  B20Paul. on  Fri Sep 4 09:56 CST 2009
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    last visit: Mon Oct 20 10:54 CST 2014
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    What's a remy brand exactly?

    --
    Three 164's, Two 144's, One 142 & a partridge in a pear tree.








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      AMP light on after alternator replacement?? 140-160 1971

      posted by  derek uk on  Fri Sep 4 10:37 CST 2009
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      last visit: Fri Oct 24 12:33 CST 2014
      [RELATED]


      (AC) Delco Remy








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        AMP light on after alternator replacement?? 140-160 1971

        posted by  145volvowayne on  Fri Sep 4 11:46 CST 2009
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        last visit: Mon Apr 15 08:25 CST 2013
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        So my question still stands.
        Where should I start looking to solve this?

        Thanks,
        Wayne

        --
        Wayne








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          AMP light on after alternator replacement?? 140-160 1971

          posted by  someone claiming to be B20Paul. on  Sun Sep 6 08:08 CST 2009 [RELATED]

          We kinda guessed that remy = Delco Remy, but what model is it?

          What markings are on all the terminals? i.e., four typical ones are: B+ B- D DF

          The last time I fitted a Delco Remy to anything it was on a truck motor & had a single wire connection, just one to take the charge to the battery. Some other were there but optional.

          --
          Three 164's, Two 144's, One 142 & a partridge in a pear tree.








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          AMP light on after alternator replacement?? 140-160 1971

          posted by  volvorelix on  Fri Sep 4 12:15 CST 2009
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          last visit: Thu Oct 23 21:56 CST 2014
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          If the amp light stays on when the key is removed, you have a faulty rectifier diode; or a bad connection either inside - or to - the alternator. Confirm that none of the wires other than the ground wire are touching ground; then confirm that the ground is solid. If that doesn't do it, have the alternator tested - this can be done on the car; or it can be done on the bench at your local auto electric shop.

          Every single Volvo (sample size about two dozen) I've worked on that has been fitted with a Delco alternator has had alternator problems at some point.

          Cameron
          444,122SC
          Rose City








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            AMP light on after alternator replacement?? 140-160 1971

            posted by  145volvowayne on  Sat Sep 5 05:00 CST 2009
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            last visit: Mon Apr 15 08:25 CST 2013
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            There were two wires mounted to the ground on my old one and I transferred those over the same way to the new one. Should there be only one wire on the ground post?


            Thanks again,
            Wayne

            --
            Wayne








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              AMP light on after alternator replacement?? 140-160 1971

              posted by  volvorelix on  Sat Sep 5 08:37 CST 2009
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              last visit: Thu Oct 23 21:56 CST 2014
              [RELATED]

              I think the best thing would be to have the charging system tested by a local automotive electrical shop while the alternator is still in place. Otherwise, we're all just guessing.

              Best,

              Cameron
              444,122SC
              Rose City







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