Question about 1985 Jaguar XJ6

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1984 jaguar xj6 alternator not charging can anyone help?

I replaced my old alternator because it was over charging and so i put a new one in but it is a remanufactured one, and now the thing only charges when it wants to, and the new alternator will charge the battery for about 3 or 4 minutes then the voltage will drop to like 12.11then it will go up to 13.40 volts then drop again then continue to do the same but the red battery indicator light on the dash won't turn on when the voltage drops. everything is connected the belt is firm on the alernator pulley what can it be? please someone help......

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  • Anonymous Mar 31, 2014

    unit not charging. Single pole wire to alternator is not attached. What color is it and what is the gauge of the wire?



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It's likely fried your battery.... probably a replacement battery would be good too.


Posted on Feb 07, 2009


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Battery dies on 1997 jaguar xj6 with new alternator

You have a draw on the battery. Short circuit somewhere in the electrical. Must use OHM meter and start checking wires, Start near the alternator and ignitoin work away from there. A quick look over all your wires to see if there are any noticable cuts or frays may save you some time if your lucky. Jags are known for electrical problems.

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1997 Jaguar XJ6 battery light on, I was told battery is good and so is alternator. Still on.....

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88 jaguar new battery altnater wilnt charge

change the alternator or strip and put new brushes in the alternator

Jun 12, 2010 | 1988 Jaguar XJ6

1 Answer

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93 Jaguar XJ6 ALternator not charging

you'll have to check the alternator to be sure .Because if it is not charging it means that the current goes in. But it does not go around the alternator . It means that there is a wire from the coil that is not connected .You should disconnect the alternator to your car for inspection.

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97 Jaguar xj6 No Start

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3 Answers

1984 jag xj6 has no power

Hi Clyde

Expect you have it running by now, as I see this was posted 2 March ?

If not......

Charge up your battery, and heavy discharge test, suspect you have short in the plates.

If OK, jump start with a set of proper heavy duty jump leads.

Good Luck !

A FixYa would be nice...Thank´s......John.

Mar 03, 2009 | 1988 Jaguar XJ6

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