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bkulbacki

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Recently, while driving my 1968 Camaro RS/SS, the radio was fading in and out. More so "out" when I would hit the gas.

I noticed nothing wrong on any of the gauges as I drove, but while driving I heard a loud "pop" that sounded like a flat time, so I started coasting to the side of the road.

A few seconds later, smoke started coming out from the hood (front right corner, near the batter), as well as from under the dashboard on the passenger side of the vehicle. The voltage gauge mounted to the dash became red, and poofed into a little flame and melted.

At this point I was on the shoulder, turned the car off, and seemingly avoided further catastrophe.

The cable that rain from the battery to the voltage regular was thoroughly melted through and basically crumbled a part.

I've never had an issue like this in the nearly 2 decades I've had the car, and am unsure what it could be.

About 6 months ago I replaced the voltage regulator with one from Rick's Camaro's, as I was having an issue where the car was running and driving fine, then I would turn it off, only to try and restart it a few minutes later and not get anything from it. At first I thought it was the battery, so I replaced that, to no avail. The voltage regulator being replaced seemed to fix that.

I am not electrically/mechanically knowledgeable enough to know if this caused that problem, is related, or has nothing to do with it.

When I reconnect the cable running from the battery to the ampmeter/voltage gauge, smoke starts coming out from the cable, gauge panel, and underneath the passenger dash again. The vehicle will not start.

I don't know if this is an issue with the voltage regulator, gauge set, starter, alternator, or what...

If anyone could help - or recommend a mechanic in the area - I would be greatly appreciative! The car is currently located in Hudson County, NJ.
 
Recently, while driving my 1968 Camaro RS/SS, the radio was fading in and out. More so "out" when I would hit the gas.

I noticed nothing wrong on any of the gauges as I drove, but while driving I heard a loud "pop" that sounded like a flat time, so I started coasting to the side of the road.

A few seconds later, smoke started coming out from the hood (front right corner, near the batter), as well as from under the dashboard on the passenger side of the vehicle. The voltage gauge mounted to the dash became red, and poofed into a little flame and melted.

At this point I was on the shoulder, turned the car off, and seemingly avoided further catastrophe.

The cable that rain from the battery to the voltage regular was thoroughly melted through and basically crumbled a part.

I've never had an issue like this in the nearly 2 decades I've had the car, and am unsure what it could be.

About 6 months ago I replaced the voltage regulator with one from Rick's Camaro's, as I was having an issue where the car was running and driving fine, then I would turn it off, only to try and restart it a few minutes later and not get anything from it. At first I thought it was the battery, so I replaced that, to no avail. The voltage regulator being replaced seemed to fix that.

I am not electrically/mechanically knowledgeable enough to know if this caused that problem, is related, or has nothing to do with it.

When I reconnect the cable running from the battery to the ampmeter/voltage gauge, smoke starts coming out from the cable, gauge panel, and underneath the passenger dash again. The vehicle will not start.

I don't know if this is an issue with the voltage regulator, gauge set, starter, alternator, or what...

If anyone could help - or recommend a mechanic in the area - I would be greatly appreciative! The car is currently located in Hudson County, NJ.
We’ll that sucks big time, but let’s address a few things….
The battery cable does not go to the voltage regulator. One end goes to the starter and the smaller wire to junction block behind the battery.
You have what is called a “Short to Ground”, “Short Circuit problem.That means a 12 volt wire is connected to ground and that’s bad. You’ll need to remove the battery and most likely the entire harness that is under the radiator core support to inspect for damage-which you will most likely find. Additionally, remove your aftermarket suicidal voltage voltage gauge and wiring. Thoroughly inspect ALL of the engine harness and under dash. Anything that looks questionable, replace it.
You’ll need a new harness, and go from there. Don’t reconnect the battery, because you might set it on fire and let all of the smoke out of it.
Got pictures?
 
The voltage gauge mounted to the dash became red, and poofed into a little flame and melted.

When I reconnect the cable running from the battery to the ampmeter/voltage gauge, smoke starts coming out from the cable, gauge panel, and underneath the passenger dash again. The vehicle will not start.
Replace that volt meter (or) amp gauge.
Is anything connected to the BAT terminal on your fuse block and is if so is it also fused?
Assuming the smoking battery cable you describe is the one going to the junction block on the rad support, I would expect a fusible link to protect this from happening. What condition are the wiring harnesses in?
Most of these old cars should have all the wiring harnesses replaced. Pics would be helpful.
 
My guess is somewhere along the way someone removed the fusible link from the junction block on the core support to the regulator.

Next is the gauge an amp meter or volt meter. I suspect possibly amp meter that was wired full battery unfused voltage. Maybe it’s as simple as the gauge failed and shorted.

At least those are places I would start looking.

Thinking as I write I suspect the gauge or the wiring to the gauge is the likely source of the problem.
 
I see that this is an old post but ...
When a friend of mine (who is very knowledgeable with classic car electronics) saw that my 68 still had the amp gauge in the center console he highly recommended that I replace it with a volt style gauge noting that when they fail issues like what is being described here are common. I followed his advice and am glad I did... it is a simple swap and cheap insurance imho...
I'm pretty sure by the 70's most cars were using volt gauges instead of amp gauges.
 
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