Electrical issue

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Old 04-09-2013, 04:36 PM
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Guys, 80 z28.

Thought I had a dead battery, got a new one, turned the key... nothing.
 

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Old 04-10-2013, 09:45 AM
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Originally Posted by FnNewGuy
Guys, 80 z28.

Thought I had a dead battery, got a new one, turned the key... nothing.

if I leave the key turned on in the ignition after about 5 minutes it will gain power. And I hear a clicking like the turn signal being on. If I turn the key to start, it instantly goes dead. Then if I try to put it back to acc, it's completely dead.

I'm horrible with electrical stuff, any ideas?
First thing you need to do is check for power at the fuse block. If you don't have a meter or a test light, I'd get a test light to check fuses. Some fuses will only be hot with the key on, but if none are hot you may have a bad fuseable link that's barely making contact. Could be a bad starter possibly, but probably not. Check both sides of each fuse to see if any are blown.
 
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Old 04-10-2013, 04:22 PM
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Originally Posted by 1971BB427
First thing you need to do is check for power at the fuse block. If you don't have a meter or a test light, I'd get a test light to check fuses. Some fuses will only be hot with the key on, but if none are hot you may have a bad fuseable link that's barely making contact. Could be a bad starter possibly, but probably not. Check both sides of each fuse to see if any are blown.
Thanks for the info.


I guess I need to get a test light.
 

Last edited by FnNewGuy; 04-12-2013 at 06:10 PM.
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Old 04-10-2013, 05:33 PM
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not it
 

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Old 04-10-2013, 05:44 PM
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sorry for the multi-post, the more reading I do the more questions I have. Is there a fuseable link between the pos wire coming from the battery before that wire gets to the starter? That's the onlly thing that makes sense to me since I have NO POWER AT ALL?
 
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Old 04-10-2013, 08:25 PM
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Remove both ends of each battery cable and wire brush the surfaces they touch, both battery posts, cable ends, and engine ground.
 
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Old 04-11-2013, 05:26 AM
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I'll give that a go. I don't think that's the issue though. It's a new battery, and the connections all appear to be very clean. But I will give that a try anyway.
 
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Old 04-11-2013, 06:24 AM
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You might do the same wire brush trick to the battery junction block and to the horn relay buss bar and the wire terminals attached to them.
On the horn relay buss bar, you can stack the two wires to one screw.
Horn relay buss bar has the vehicle's power wire for all electrical systems getting power from the battery with engine off. Same path used to recharge battery when engine is running.
 
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Old 04-11-2013, 09:23 AM
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Your pos. cable should go directly to the starter, and neg. cable should be bolted solid to the engine block. If it's bolted to a bracket or other place, then move it to the block. The main power lead to the fuse block has a fuseable link in the wire, and it's not readily visable from the outside. It's just a smaller scetion with shrink tubing over it usually.
Often wen there's a resistance electrical issue you can check for voltage with a meter or test light, but it wont carry any load, so when you turn the key, or turn on anything with a load the 12v. will go away as the problem connection opens. These intermittent problems can be a real issue to trace, so you need to check for good connections before you can troubelshoot the system.
If you use a test light and get power on the fuse block, then hit the key to start, and see if the power goes off. This would signal that something is opening up. Possibly the fuseable link, or a bad ground.
 
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Old 04-11-2013, 11:34 AM
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Originally Posted by 1971BB427
Your pos. cable should go directly to the starter, and neg. cable should be bolted solid to the engine block. If it's bolted to a bracket or other place, then move it to the block. The main power lead to the fuse block has a fuseable link in the wire, and it's not readily visable from the outside. It's just a smaller scetion with shrink tubing over it usually.
Often wen there's a resistance electrical issue you can check for voltage with a meter or test light, but it wont carry any load, so when you turn the key, or turn on anything with a load the 12v. will go away as the problem connection opens. These intermittent problems can be a real issue to trace, so you need to check for good connections before you can troubelshoot the system.
If you use a test light and get power on the fuse block, then hit the key to start, and see if the power goes off. This would signal that something is opening up. Possibly the fuseable link, or a bad ground.

Thanks for the info guys. I have been doing a lot of research online and it's really starting to seem like the fusible link from the starter. I am hoping to take a look this weekend. I am going to buy a meter, it's about time I get one.

Does anyone know off hand if I will be able to see the wires on the starter without pulling the starter? Or am I going to have to pull the starter?
 


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