Landcruiser Alternator problems?

Submitted: Saturday, Mar 21, 2009 at 00:36
ThreadID: 67028 Views:7816 Replies:3 FollowUps:4
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I had all my lights on the dash come on and my radiator overheated at the same time. After spending $3500 on a new head and stuff my lights are still on. The mechanic seems to thing the Alternator is stuffed but my gut is telling me a wire is fallen off somewhere.
Anybody here has more clues on that one?
Thanks
Reiner
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Reply By: ross - Saturday, Mar 21, 2009 at 00:49

Saturday, Mar 21, 2009 at 00:49
Simple enough for an auto electrician to test the alternator output.
Its easier to test an alternator than go looking for a bad wire.

You could be right though. A bad earth is my bet
AnswerID: 355249

Reply By: Member - Steve M (SA) - Saturday, Mar 21, 2009 at 13:01

Saturday, Mar 21, 2009 at 13:01
Hi Reiner

Have experienced lights on dash & flat battery caused by failed / faulty alternator in a friends 1998 100 Cruiser. More than once and usually after lots of mud play requiring cleaning of alternator.

Alternator definitely a potential cause - are the batteries OK or not? If OK I would look elsewhere.

AnswerID: 355316

Follow Up By: Member - Kroozer (WA) - Saturday, Mar 21, 2009 at 14:51

Saturday, Mar 21, 2009 at 14:51
I'll second that.
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Follow Up By: Member - Reiner G (QLD) 4124 - Saturday, Mar 21, 2009 at 16:18

Saturday, Mar 21, 2009 at 16:18
I would have thought just the red Alternator light comes on if the charging system is faulty...........but I have all the dash lights on.
Battery is about 6 month old and the auxiliary battery maybe 2 years.
Thanks for your thoughts
Reiner
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FollowupID: 623371

Follow Up By: Member - Kroozer (WA) - Saturday, Mar 21, 2009 at 17:08

Saturday, Mar 21, 2009 at 17:08
About a month ago i was out with some mates and we were mucking around in the mud and a few deep crossings. Mates 78 series troopie dash lights kept coming on and then going off, then they all just stayed on. No worries, we cleaned every plug and connection with contact cleaner and checked all the other things associated. (At this point it was getting slow to start but still starting rather easy). All the lights still stayed on, so went down and seen a mechanic mate and he said straight away your alternators stuffed. Muddy water he said. So went home and checked it and yep, no charge at all. Then the battery died and needed jump starting.

Check your alternator first. Another Troopie on the trip also stuffed its alternator, and myself and a SR5 Hilux both blew our rear main seals. Expensive couple of hours thats for sure. Fun though and heaps of good fotage. But never do that again.
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FollowupID: 623376

Follow Up By: Lex M (Brisbane) - Saturday, Mar 21, 2009 at 20:44

Saturday, Mar 21, 2009 at 20:44
When you turn your ignition on and the dash lights light up to test the bulbs, this is often done by a connection to the alternator light circuit. Hence a totally failed alternator will often turn on other dash lights.
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FollowupID: 623403

Reply By: Member - Phil G (SA) - Saturday, Mar 21, 2009 at 22:20

Saturday, Mar 21, 2009 at 22:20
In some Landcruisers this is caused by poor contact of the multiwire connector in the back of the alternator. Pull the plug out, clean it up and plug it back in and see what happens.
AnswerID: 355386

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