63 Electrical Problem
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Instructor
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63 Electrical Problem
We are having trouble locating a electrical problem on my 63 corvette convertible. It has no air or other accessories. We seem to get power to the firewall but not thru to the ignition. All wire connections look
good but when you turn key there is nothing. It has a new battery,
starter, alternator and regulator. Any ideas?
Steve
Mechanicsburg, Pa.
good but when you turn key there is nothing. It has a new battery,
starter, alternator and regulator. Any ideas?
Steve
Mechanicsburg, Pa.
Safety Car
Joined: Mar 2009
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From: Corpus Christi, TX
It should be the lower left hand wire on the left hand firewall connector, direction looking at the firewall. The connector pin in my fusebox snapped off when I was cleaning that terminal (caused me the same problem you're having now), so I stuck a 1/2 inch lone piece of solid 12 ga. wire in there. Just call me Bubba, but the alternative is a $400+ complete dash harness.
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Tech Contributor
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From: Conroe Texas
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corrision. But will apply a little sandpaper just in case. The contacts
look fine.
Instructor
Joined: Sep 2006
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From: Bay Area, California
Did you check if you have power to the fuses? Easy to check - bottom 2 fuses should be "Hot" at all times. If you have power at the fuse box, then it sounds more like an ignition switch or connector to the switch.
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are not hot.
Le Mans Master
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From: Going too fast over the hill. Iowa
Le Mans Master
Joined: Nov 2000
Posts: 7,246
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From: Going too fast over the hill. Iowa
On the engine side of the bulkhead?
If you are telling us the engine side RH plug orange wire (to the blower motor) has 12volts, but the red cabin supply line from the alternator/hornrelay/battery does not have 12volts, I believe the harness is toast.....
The red supply wire would have to be fused to the orange line inside the engine harness AND burned off the bulkhead plug for that to be the case
If you are telling us the engine side RH plug orange wire (to the blower motor) has 12volts, but the red cabin supply line from the alternator/hornrelay/battery does not have 12volts, I believe the harness is toast.....
The red supply wire would have to be fused to the orange line inside the engine harness AND burned off the bulkhead plug for that to be the case
Last edited by magicv8; Sep 23, 2010 at 04:23 PM.
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on the engine side of the bulkhead?
If you are telling us the engine side rh plug orange wire (to the blower motor) has 12volts, but the red cabin supply line from the alternator/hornrelay/battery does not have 12volts, i believe the harness is toast.....
The red supply wire would have to be fused to the orange line inside the engine harness and burned off the bulkhead plug for that to be the case
If you are telling us the engine side rh plug orange wire (to the blower motor) has 12volts, but the red cabin supply line from the alternator/hornrelay/battery does not have 12volts, i believe the harness is toast.....
The red supply wire would have to be fused to the orange line inside the engine harness and burned off the bulkhead plug for that to be the case
out. We could have missed something when we taped it the first time
Instructor
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From: Bay Area, California
On the engine side of the bulkhead?
If you are telling us the engine side RH plug orange wire (to the blower motor) has 12volts, but the red cabin supply line from the alternator/hornrelay/battery does not have 12volts, I believe the harness is toast.....
The red supply wire would have to be fused to the orange line inside the engine harness AND burned off the bulkhead plug for that to be the case
If you are telling us the engine side RH plug orange wire (to the blower motor) has 12volts, but the red cabin supply line from the alternator/hornrelay/battery does not have 12volts, I believe the harness is toast.....
The red supply wire would have to be fused to the orange line inside the engine harness AND burned off the bulkhead plug for that to be the case
Let us know what you discover. It's impossible for you to have juice to the orange (blower motor) wire if there is no power flowing into the fuse box unless it's as magicv8 described.
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if we don't solve it ourselves before.
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a real nice job. The problem turnout to be a loose connector in the socket on the end of the harness that goes in the the firewall. Don
fix it and said it will work for a while but a new harness will be needed in the a few years. There was also one other bad connection up front near the regulator. Since then the car has run well. Next up will be a newtop.
