Help needed with Hilux alternator fault please

[gensetsteve]

I have a mk 3 diesel hilux single cab for getting about the muddy yard. But it discharged its new batteries a few weeks ago. At the same time half the dash lights stopped working and the truck will not operate the glow plugs. When sat with everything switched off its draining 1/2 an amp out of the batteries. If I disconnect the small connector on the alternator the dash lights and glow system starts again. If I disconnect the near side battery neg the alternator relay clicks and also the dash lights work. All very strange especially without a set of drawings. Has any one had these problems and was it a regulator or an alternator.

[Dan Lacey]

Hi Steve ask on this site they will be able to help you http://www.hpoc.co.uk

 

 

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[gensetsteve]

Hi Steve ask on this site they will be able to help you Hilux Pickup Owners Club & Online Community Forum - Home

 

 

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Thanks mate I will give it a try tommorrow again spent an hr tonight trying to get back on even tried joining as a new member no luck

[mixedangased]

im a member on there as i got a mk3 hilux,if you cant post let me know and i will post the question for you,sounds like diode in alt feeding back to me. tho could be the brush pack if fitted as diodes combined in the pack.would have to check mine.

[Scott Walker]

I've got a mk5 hilux single cab and had the same problem, at first thought it was the batteries as they were the original ones so replaced them which worked for a week before they got completely drained turns out the alternator was knackered replaced with a reconditioned one and it's as good as new.

 

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[treequip]

Its lilkley to be a diode problem, the diode is a "one way" device in the alternator, if it breaks down it allows the current to "leak" to earth.

 

Swaping the alternator will probably cure it

[gensetsteve]

Thanks for your replies. I was thinking alternator diodes so new alt about £120 external regulator if I get it wrong is about £75 for a genuine one. I only use it for a yard cart but its ideal getting through the 2 ft of mud at the moment thinking of selling soon if anyone wants a single cab with new alternator

[mixedangased]

might be interested what condition is is in and how much ?