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rebec08 12/16/2012
1988 Volkswagen Jetta GL 4Cyl1.8L - Engine
my car is having electrical problems
just installed a new alternator the car is fine then it just dies on and off
2 Answers
  • Jimm
    Jimm 12/16/2012
    First step, have the charging system tested - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA.
    Have the battery and the alternator fully tested along with the charging system to determine the source of the problem; may be weak battery / faulty cell, poor wiring connections, etc.
  • monteur
    monteur 1/5/2013
    If you disconnected the battery to change the alternator ,you will need to have an idle adaptation performed.This procedure stabilizes the idle speed.

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