I need you to check something. First, using a volt gauge, check the voltage at the battery. Then, start the engine and check it. Let me know what you find. IF POSSIBLE, check voltage at the battery when the gauge is at 18. It sounds like you may have a bad voltage regulator. What makes it worse is the voltage regulator is part of the PCM (power control module). Not a cheap fix.
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Friday, July 17th, 2015 AT 8:24 PM