brent 3045 Posted February 23, 2013 Share Posted February 23, 2013 been offroading today, washed defender 200tdi on way home and when i get home turned LR off. went out to start it a while back and no battery lights at all, would also not fire, just clicking. used booster pack on it and it fired straight away. any ideas? Quote Link to comment Share on other sites More sharing options...
Josh NZ Posted February 23, 2013 Share Posted February 23, 2013 Loose or corroded connections on your battery terminals, and or your battery is shot. Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted February 23, 2013 Share Posted February 23, 2013 First thought is theres a problem with your alternators exciter circuit. Quote Link to comment Share on other sites More sharing options...
brent 3045 Posted February 23, 2013 Author Share Posted February 23, 2013 checked terminals and seem to be fine, gunna do tests on battery and earths in morning. will keep you posted. what is the exciter circuit exactly? Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted February 23, 2013 Share Posted February 23, 2013 checked terminals and seem to be fine, gunna do tests on battery and earths in morning. will keep you posted. what is the exciter circuit exactly? Its the circuit that excites the alternator... Its the circuit that the "warning" light is on, it provides the Alternator with the power it requires to generate... Once its generating power it self sustaines and the light goes out. Quote Link to comment Share on other sites More sharing options...
Simon B Posted February 24, 2013 Share Posted February 24, 2013 Strangely I've just had the same fault, it's either diodes or voltage regulator that's gone pop. Mine happened after driving through a flood, changed alternator (could not repair it as tie bolts rounded off) all working ok now and battery does not flatten. Quote Link to comment Share on other sites More sharing options...
brent 3045 Posted March 21, 2013 Author Share Posted March 21, 2013 my alternator has been replaced but drove through large swamp after, now in a morning only on cold start, its starts fine but light flashes for a while then goes off. could this be caused by sludge in the alternator/engine bay? Quote Link to comment Share on other sites More sharing options...
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