Question about 1999 Lexus ES 300
Alternators come in different amperage rating. connect a good ammeter in series with battery positive terminal after engine is at idle. or connect a voltmeter on your battery. with engine at idle, turn on lights and a/c, raise idle at between 1500 to 1800 rpm. voltage reading should be 13-14 volts. if not, alternator is too small. check the amperage rating of your original alternator. good luck
Posted on Jul 11, 2009
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Posted on Jan 02, 2017
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