Battery light comes on if i use the ac periodically or during low rpms under 2.5k... if i rev the car past 4.5k the light will turn off for a bit then eventually turn back on. This all started today, the day after i rinsed the engine down using purple power and a water hose. Could i have messed up the alternator? It was just recently installed in april
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Alternator? Loose belt? Voltage regulator?
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If you think it's the alternator, turn everything in like the AC, lights, wipers, etc. Check for 13.8+ volts under load. Charged battery should be 12.6v.
Also test how much AC voltage the rectifier is letting through. A small amount is fine, but anything over like .05v might cause problems.
Make sure your terminals and grounds are clean.
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Go for a new belt and don't buy a remanufactured alternator from AutoZone get a brand new Bosch from Amazon and you won't have any problems. BTW go with a bando belt never had any problems with them daayco and all that other shit constant squeals and bullshit lol.Last edited by Kev1990; 07-28-2016, 06:23 AM.
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