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Exciter wire

Old Jan 21, 2008 | 05:22 AM
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Default Exciter wire

I can jump my car off and it'll start and run but as soon as I try to start it the batt/starter just clicks. I've replaced my battery and my alternator. Should I try replacing my exciter wire next? I hear it's the small red wire that goes to the top of the alt. Where does it go from there?
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Old Jan 21, 2008 | 07:57 AM
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What kind of car is it?
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Old Jan 21, 2008 | 11:48 AM
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2000 Z28
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Old Jan 21, 2008 | 12:05 PM
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Man, check your connections, especially the grounds. I'm not much help but I want to see how this unfolds. Good luck there.
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Old Jan 21, 2008 | 12:10 PM
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Sounds like the battery to me since it starts and runs after jumping it. I'd have it load tested.
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Old Jan 21, 2008 | 01:53 PM
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Jump it and after it starts, use a volt meter to see if the alternator is charging. If it is, then you have either bad battery or bad connection at the cable.
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Old Jan 21, 2008 | 02:02 PM
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Is your starter hanging? Kind of sounds like it is. Whenever this happens crawl underneath and tap the starter with a hammer and have a buddy turn it over and see if it doesn't fire up. If so then you have a bad starter...
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Old Jan 21, 2008 | 04:54 PM
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I have an optima red top (less than 1 yr old) load tested @ batteries plus and they say it's a good battery, I just replaced my alternator (160Amp) and I double checked my grounds. How could the starter be messed up if starts when I jump it off. Car just clicks when I try to start it on it's own power. Battery reads 11.2V when I test it w/ the car off. When I jump the car and it's running I have 13.8V. If anyone else can help I would appreciate it!
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Old Jan 21, 2008 | 05:23 PM
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does your battery guage read lower than normal? i replaced the little fuse in the exciter wire and that fixed my problem
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Old Jan 21, 2008 | 05:47 PM
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Yes, it used to read lower than normal so I bought a 160A alt. Now it reads about 13ish on the voltmeter but still is giving me problems. Where is the little fuse located? Near the injectors?
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Old Jan 21, 2008 | 06:04 PM
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Originally Posted by socmguy
Yes, it used to read lower than normal so I bought a 160A alt. Now it reads about 13ish on the voltmeter but still is giving me problems. Where is the little fuse located? Near the injectors?
no, its a few inches off the plug of the alternator. the wire flares out just a little but you can tell the difference. ( at least thats how it was on my 00 t.a)
just go to the local parts store and they should have it. hope this helps. id take a picture but my cars in the shop atm.
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Old Jan 22, 2008 | 05:32 PM
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anyone have pics?
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Old Feb 1, 2009 | 02:44 PM
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dude..that sucks! Going throught the same thing EXACTLY!!! WTF




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Old Feb 1, 2009 | 02:47 PM
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start the car and put a volt meter on positive and negative battary terminals should be charging at 13.8- 14.3

if thats good get a load tester for the battary with the car off put a load on it and see if it dies down after ten seconds

and when you check the alternator rev it a little too to make sure it increases with rpm and is not just stationary
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