Thanks it all started when i was driving the light started flashing slowly then later now its staying on,i checked the fan belt and its tight

If it goes over ~15 volts, it is a bad Voltage regulator. The exact voltage depends on temperature. In colder climates, higher voltages are OK.



Darrin, the symptoms you describe (at idle the charge light is on, goes off at 2000 rpm) i have experienced several times. It may be caused by a loose fan belt, which will cost zero $$ to tighten. Or by worn brushes, which cost a few dollars to replace. Or by a bad alternator. I think it is less likely to be caused by the regulator.

Take the alternator and regulator to an auto electrician and get it checked.
Your latest check is not a valid test as far as I know.
If you have a voltmeter put it across the battery terminals.

It should show 13.8 to 14.4 volts with engine running. If you rev the engine, the voltage should remain steady. It should never go above 14.4v.

Hey suspect its the alternator when i take off the negative terminal at the battery,engine shuts off completly any clues there?

Regulator has a wiring problem or needs replacing.

Ok i have my sedan and when at ilde the charge light is on when i rev past 2000 rpm light goes off, have anyone had this problem and any part that is bad an need replacing?