C4 Voltage reading - NCRS Discussion Boards

C4 Voltage reading

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  • Art B.
    Expired
    • July 31, 1989
    • 333

    C4 Voltage reading

    I am just curious as to what the voltmeter indication on my 1986 is actually reading. I have a shop manual but cannot find where the gauge is wired to. I assume it reads battery voltage rather than alternator output. Can anyone verify this?
  • Jim T.
    Expired
    • March 1, 1993
    • 5351

    #2
    Re: C4 Voltage reading

    Art I have the shop manual for my 85. In my shop manual I read a few months ago about my alternator because one night the volt guage was reading to high, if I remember correctly the check engine light will come on with voltage over 16. I saw voltage peak at 18, reduced the RPM's and the voltage was reduced. The guage reads alternator output and see 14.1 - 14.3 under normal driving.

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