96 xj6 No power
#1
96 xj6 No power
Hi everyone. I'm brand new to the site and brand new to jaguars. I recently aquired a 1996 jaguar xj6. The car is in excellent condition and it was given to me by a family friend. A little back story on the car. The car was owned by the husband of the lady that gave it to me. He passed away a year ago and she didn't drive the car very often. I drove the car to my house and put it in park. Just before shutting the car off I noticed smoke coming from under the hood. It was the alternator. So I turned the car off. I went out today to get started removing the alternator and I noticed I had no power in the car. I checked the battery and its connections and hooked it back up. The lights came on in the trunk and the door chimes when open or with the key in the ignition but other than that there is no power anywhere in the car. Could someone please attempt to help me out here im at a loss.
#2
Welcome to the forum, Brandon! Make sure you stop by the new members area and post an introductory note for a proper welcome and also to nab the attention of a moderator who will upgrade you to full member status when the pre-req's have been completed.
Congrats on your great fortune, to have obtained a fine motorcar sans capital outlay. Beware the old adage, "The most expensive Jag is the free one!"
As to your problem, I suppose the alternator going up in smoke may've also relieved some key control modules of their "Magic Smoke" as well, but I'd start with the basics:
Download the appropriate electrical guide from the stickies and methodically work your way through the power feed and earth connections (they are legion). Pay particular attention to the bonding strap between engine block and frame.
You say you checked it.... but I should caution you, these cars will simply not abide a "part-time" or less than fully ready all-the-time battery.
Your description of items that work sounds like knackered connections as the trickle-current items are functional, but when more is demanded, it all goes wrong.
Congrats on your great fortune, to have obtained a fine motorcar sans capital outlay. Beware the old adage, "The most expensive Jag is the free one!"
As to your problem, I suppose the alternator going up in smoke may've also relieved some key control modules of their "Magic Smoke" as well, but I'd start with the basics:
Download the appropriate electrical guide from the stickies and methodically work your way through the power feed and earth connections (they are legion). Pay particular attention to the bonding strap between engine block and frame.
You say you checked it.... but I should caution you, these cars will simply not abide a "part-time" or less than fully ready all-the-time battery.
Your description of items that work sounds like knackered connections as the trickle-current items are functional, but when more is demanded, it all goes wrong.
#3
Just to save you hunting, here is the electrical guide for your car: http://www.jagrepair.com/images/Auto.../jagxj1996.pdf
Agreed, the computers in these cars do not like anything less than full battery charge. That being said, there shouldn't be smoke from the alternator. How many miles are on the car? Is it possible the alternator bearings have seized? Is the belt ok, or was that what made the smoke?
Agreed, the computers in these cars do not like anything less than full battery charge. That being said, there shouldn't be smoke from the alternator. How many miles are on the car? Is it possible the alternator bearings have seized? Is the belt ok, or was that what made the smoke?
#4
Just to save you hunting, here is the electrical guide for your car: http://www.jagrepair.com/images/Auto.../jagxj1996.pdf
Agreed, the computers in these cars do not like anything less than full battery charge. That being said, there shouldn't be smoke from the alternator. How many miles are on the car? Is it possible the alternator bearings have seized? Is the belt ok, or was that what made the smoke?
Agreed, the computers in these cars do not like anything less than full battery charge. That being said, there shouldn't be smoke from the alternator. How many miles are on the car? Is it possible the alternator bearings have seized? Is the belt ok, or was that what made the smoke?
#5
#6
Just as Wayland suggested I charged the battery as soon as I got it home from the auto parts store so no problem there. I have also pulled all the fuses in the car and never found a blown one.
I assumed that as previously stated that perhaps a fuse would have been the culprit but struck out.
I know for sure the alternator was smoking I physically saw it. What caused it still remains a mystery to me.
If the alternator fried a module or modules which ones would be the most likely to go and what would be the easiest way to check them.
Sorry for the lengthy post I have just never seen anything quite like this before. Again thanks for any help
#7
There is a large 250A fuse that protects most of the electrics and a fried alternator is an event that could blow that I suppose.
The fuse is in a cavity under the back seat on the RH side. Lift the back seat squab and you will see a large triangular shaped foam. Pull the foam and the fuse is there. Check voltage either side of the fuse.
The fuse is in a cavity under the back seat on the RH side. Lift the back seat squab and you will see a large triangular shaped foam. Pull the foam and the fuse is there. Check voltage either side of the fuse.
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#8
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littlelic69 (08-10-2016)
#9
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#12
Problem resolved
Turns out that both bolt on fuses coming off the positive terminal were blown. I dont know why I didn't check that first... Feeling pretty stupid but I'm back up and running. Thanks for the help guys
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Don B (08-12-2016)
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