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Posted on Jan 02, 2017
SOURCE: alternator overcharging
ok, there is an earth wire between the engine and the body (usually bolted to the exhaust manifold), you need to undo it from the body, and with a piece of sandpaper or a file, you need to clear away the paint from under where the wire connects to the body, (might be a bad earth giving a faulty sensor reading, because on the production line the body is painted before anything else is fitted), clean the end of the earth wire contact and re-connect.
if you still have the same problem, you need to see an auto electrician or your nearest dealer.
Posted on Dec 03, 2008
this can be caused by a shorted cell in the battery, has the battery tested? and clean the battery cable's, corrosion can also cause this condition.
Posted on Mar 27, 2009
It sounds as the voltage regulator which is built into the back of the alternator has stuck. Occaisionally this even happens on new ones. Would suggest taking the alternator back as it shoud be under warranty.
Posted on Jul 06, 2009
Never saw a charging system problem cause anyone to fail inspection. But, overcharging will cook the water out of your battery and can damage the computer system if not taken care of. Overcharge can be caused by either a grounded alternator field wire or a bad regulator. Since the condition appeared after replacing the alternator it too is suspect as an internal grounding can also cause that.
Posted on Jul 20, 2009
If you have a fully charged battery when you installed then 14 volts is way to much charge for the battery which would mean that the alternator probably has a faulty regulator and the alternator needs to be changed otherwise you will continue to install new batteries. If the battery was in an uncharged state then it is possible for the alternator to charge at full capacity to charge up the battery.
Posted on Dec 18, 2009
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