Question about 1999 Chevrolet Silverado 1500

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Generator light comes on.

Have a 79 chevy scottsdale 4x4. after starting and at idle evrythings ok.as soon as i give it gas generator light comes on.altinator and battery are fine.any takers?

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  • lucifer2586 May 11, 2010

    Try changing the alternator belt, sounds like when you bring the RPM's up the belt is slipping.

  • Jerry Koski
    Jerry Koski May 11, 2010

    while its running take the positive post off of the battery .. if it dies you are not charging.. if its running it is charging .. it could also be the regulator going out . just a couple of thoughts.

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I've got a '79 scottsdale 4x4 myself actually.. the best thing you can do is go buy a cheap voltage meter.. remember the wiring/connections are 30 years old.. so bad wires/connections/gauges/sensors could be all over the place..

for example, my voltage gauge would barely move out of the orange when i got it, i rewired the vitals and it still only reads 13v max, however, when i hook up a voltage meter to the hot alt wire, it reads over 14v..

remember.. old wires=resistance/heat=voltage loss.. this could easily account for a sensor triggering even with a fresh battery and alt

Posted on Feb 08, 2009

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Posted on Jan 02, 2017

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