No power to anything. on 68 - Team Camaro Tech
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post #1 of 10 (permalink) Old Jan 30th, 09, 05:29 PM Thread Starter
 
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No power to anything. on 68

So I have a 68 camaro, and one day I open the door throw in my stuff for college and hop in and close the door, then try turn on the lights and bam no power, replaced the battery, ignition switch, a fuse for the AC fan, and the horn relay. Nothing no progress. so I'm in desperate shape I've checked the wires for the battry by the way for current and they show that they're giving off current. And suggestions would be nice.

Last edited by CamaroSeth; Jan 30th, 09 at 07:15 PM.
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post #2 of 10 (permalink) Old Jan 30th, 09, 05:33 PM
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Re: No power to anything. on 68

Check power at the fuse panel? Assuming stock...power goes from battery to junction block behind battery, along front of core support to horn relay, then horn relay into fuse block...

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post #3 of 10 (permalink) Old Jan 30th, 09, 05:35 PM Thread Starter
 
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Re: No power to anything. on 68

The fuses looked good but yeah might as well try and check the power.
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post #4 of 10 (permalink) Old Jan 30th, 09, 05:36 PM
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Re: No power to anything. on 68

Check the junction block on the firewall. There is a hot lead there that will sometimes cause this problem. Don't ask how I know.
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post #5 of 10 (permalink) Old Jan 30th, 09, 05:41 PM
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Wink Re: No power to anything. on 68

Quote:
Originally Posted by tonycamaro View Post
Check the junction block on the firewall. There is a hot lead there that will sometimes cause this problem. Don't ask how I know.
There is no "junction block" on the firewall off a 68 - so how do you know

Soooo...
The main 12vdc power source is from the battery to a Splice in the line that splits the power feeds to the Horn Relay, Fuse Block and Voltage Reg.
It is quite common for this conection to get "IFFY" over the years and then eventually cause power issues.
Here is a link to a great explanation and pictures - https://www.camaros.net/techref/elect...ain_splice.htm

Check these connections and fix the splice if needed and everything should work fine again.

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post #6 of 10 (permalink) Old Jan 30th, 09, 05:42 PM
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Re: No power to anything. on 68

In addition to the junction block, check for a blown fusable link!
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post #7 of 10 (permalink) Old Jan 30th, 09, 06:01 PM Thread Starter
 
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Re: No power to anything. on 68

No blown fusable links, and also in addition to fixing the connections and the splice I'm really unsure how I would tell they're bad and what I'd do to fix them. Oh yeah, also we checked the main splice near the horn relay and it's not getting voltage. On the main splice near the horn relay we also crimped a ground wire which looked bad but still no juice.

Last edited by CamaroSeth; Jan 30th, 09 at 06:48 PM.
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post #8 of 10 (permalink) Old Jan 30th, 09, 07:25 PM
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Re: No power to anything. on 68

A pigtail from the positive post of the battery goes to the junction block, then across the radiator support to the horn relay to its buss bar, then across the buss bar to another red wire to the firewall connector, through the other side to the dash and split (factory crimp) to light switch, fusebox, and ignition switch.

Any one of these connection points can yield corrosion to stop current flow , especially the horn relay buss bar. Also, on the negative side is cable to the block and pigtail to fender and those straps from the firewall to engine and pass side subframe bolt to firewall - if straps were installed as part of Radio Interference package.

If you have voltage at the fusebox BAT spade, its at least through the firewall. No lights, check crimp behind dash - you'll to remove the electrical tape to find it.
I suspect the horn relay buss bar. Remove the terminals and wire brush all parts, reconnect. Wire brush all connections.

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post #9 of 10 (permalink) Old Jan 30th, 09, 07:43 PM Thread Starter
 
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Re: No power to anything. on 68

Quote:
Originally Posted by Everett#2390 View Post
A pigtail from the positive post of the battery goes to the junction block, then across the radiator support to the horn relay to its buss bar, then across the buss bar to another red wire to the firewall connector, through the other side to the dash and split (factory crimp) to light switch, fusebox, and ignition switch.

Any one of these connection points can yield corrosion to stop current flow , especially the horn relay buss bar. Also, on the negative side is cable to the block and pigtail to fender and those straps from the firewall to engine and pass side subframe bolt to firewall - if straps were installed as part of Radio Interference package.

If you have voltage at the fusebox BAT spade, its at least through the firewall. No lights, check crimp behind dash - you'll to remove the electrical tape to find it.
I suspect the horn relay buss bar. Remove the terminals and wire brush all parts, reconnect. Wire brush all connections.
We got a new horn relay so I'm guessing the buss bar is new as well if it's something on the horn relay. I'll check the BAT spade and the crimp behind the dash, but so far we haven't gotten anything to fix the problem. Also we have no voltage to the BAT spade so no power even to the firewall.
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post #10 of 10 (permalink) Old Jan 30th, 09, 07:51 PM
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Re: No power to anything. on 68

Seth, go here https://www.camaros.net/forums/showthread.php?t=71062 and start (reading) at the top.
And quit guessing and quit throwing parts at it.

Buy a $35 digital multi meter and the tech references will teach you how to use it and what to check.





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