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Lights flicker intermittently appears to be in charging system. Low voltage coming from alternator 12.7 to 13.2 volts during these cycles.
What I have done:
Replaced voltage regulator and rotor.
Problem went away for a week but has now returned as before intermittently.
Is there something in the system that could be sending the voltage regulator a false signal?
No codes being thrown. shifting is rough during the flickering cycles.
Is there an easy test to determine if its the alternator or other issue?
maybe a alternator output test to include diodes, amps etc... Sometimes heat will affect so best is on vehicle as opposed to bench.
The wiring to alt may need checking - ign switch etc look at attachment
Hopefully there are no wiring 'modifications' remote starter AKA POS.
How do you know there are no codes? And will your scanner read all modules and codes?