Question about 1985 Volkswagen Jetta
I have a 2003 VW Jetta TDI and replace the alternator. The batter is not getting a charge from the alternator. Could there be a fuse or voltage regulator that could have gone bad or blown that would cause this.
Problem is that the voltage regulators on the 1.8t which I am sure is the same on the TDI alternator....is that they may work fine when they are cold....but once they warm up is when they start acting up and causing problems. I assume is has to do with some resistor over heating. This is just a common problem noticed by most people over at VWvortex.com.
So you can take your alternator to get tested but if it is tested cold then well it may appear to be working ok. When in reality it is broken. Trust me...it is a cheap enough part and easy enough to fix to not just try it. Some can even change the regulator without taking the alternator out. If you have small enough hands I can see it being done.
Posted on Feb 20, 2009
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Posted on Jan 02, 2017
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