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  1. VW Jetta MKII 1985–1992
    I can jump my car and it starts but soon the voltage drops. Just replaced the alternator with a 90 amp one. The battery is not new but I was hoping it would be a short other than this battery. The radiator fan stays on sometimes which kills the battery. As soon as I turn on the lights the...
  2. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    2000 mk4 2.0 electrical drain!! help cannot isolate drain So... I've been through a week of testing now to no avail.. I just put a new battery, and ignition switch in it... The car dies if it sits for more than 2 days... The alt puts out 14.2 v at idle... I've pulled the load reduction relay...
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