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Help. I just lost all power while driving!

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Old 02-19-2002, 07:31 PM
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dshrack
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Default Help. I just lost all power while driving!

I just lost all power- ignition, accessories- everything while driving!

I was driving into my neighborhood and all of a sudden I lost all power and the car shut off. I got out the test light and the battery is good, there is power to the starter and to the alternator. The ground cable seems happy and is properly grounded- thus I am convinced that it is not at the battery or the battery cables. When I turn the key, nothing happens, no lights, no ignition... nothing.

You don't think the ignition switch went bad all of a sudden? .... come to think of it, it acts just like that is the problem, but my aftermarket stereo has a bypass so it can eject CDs without the key on, but it is dead too.

What else can I check?
Old 02-19-2002, 08:57 PM
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71vettman
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Default Re: Help. I just lost all power while driving! (dshrack)

I had the same exact thing happen to my 71 when I got it. I dont know if your wiring is the same but on mine the horn relay on the driverside fender had rusted and all of the power in my car is from the connections at the horn relay. When it lost its connection everything died. just a thought
Kevin
Old 02-19-2002, 09:01 PM
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Noel Carboni
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Default Re: Help. I just lost all power while driving! (dshrack)

Sounds like an open circuit between the starter terminal and the fuse box...

On my car there is a connector over by the heater plenum under the hood. All interior power is routed through that connector, and I had mine almost melt the connector shell. I soldered it solid (hey, I don't plan to unplug the car any time soon). Perhaps you have the same issue. It is translucent white and squarish, and several wires go through it.

-Noel
Old 02-19-2002, 09:04 PM
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Pete79L82
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Default Re: Help. I just lost all power while driving! (dshrack)

There is a fusible link that comes off the starter that feeds current to the car. Check to see if it is burnt.
Old 02-19-2002, 09:06 PM
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NorthVette
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Default Re: Help. I just lost all power while driving! (dshrack)

Hi there! I had something similar happen to my car... For me it was the battery cable connections. You know the aftermarket bolt on battery connectors... They loosened up and wold give me "sometimes" power... Some electrics would work until I tried to start it... Try that...
Old 02-19-2002, 09:25 PM
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VETDRMS
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Default Re: Help. I just lost all power while driving! (dshrack)

Sounds like a fuseable link fried on ya....Check the one on the top right, its an orange block on my '74. Mine came a little loose today and it was dead as a door nail :crazy:
Old 02-19-2002, 10:30 PM
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Jack71
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Default Re: Help. I just lost all power while driving! (VETDRMS)

Sounds like its time to untape that fusible link.

Somebody posted a long thread a while ago that ended up being a loose wire in the ignition. I think your non-operating CD player rules that out though.

Old 02-20-2002, 12:01 AM
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Sean Willard
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Default Re: Help. I just lost all power while driving! (74jack)

I had a very similar problem on my 77' it was a fuseable link, should be an easy fix if that's all it is. :cheers:
Old 02-20-2002, 12:34 AM
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joeveto
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Default Re: Help. I just lost all power while driving! (dshrack)

I agree with the others, that it's probably a fusible link. Replace them both. But you also need to figure out what fried them in the first place. Check all of your grounds, etc. For your fusible link to go, you need a lot of errant juice.
Old 02-20-2002, 01:29 PM
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dshrack
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Default Re: Help. I just lost all power while driving! (dshrack)

OK... now what if I through this in the mix:

I went out with my buddy to move it about 20 feet into my garage... and if fired up without a problem. All I had done is check the battery cables like I said and it didn't work for the first 5 times I tried.... came back 1 hour later and there was no problem.

That is almost more worriesome....
Old 02-20-2002, 01:48 PM
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Budman68
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Default Re: Help. I just lost all power while driving! (dshrack)

This sounds like the starter wiring harness connector. It's located above the starter on the fire wall. Wiggle will the key is on and see if you loose power. That is probably your problem.
Old 03-22-2020, 12:50 AM
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grahambb
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Default 73 with similar problem

Did this get resolved? I have a similar problem. Mine eventually fixes itself? If I wait some amount of time it eventually will come back to life
Old 03-22-2020, 08:08 AM
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interpon
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Default

Originally Posted by grahambb
Did this get resolved? I have a similar problem. Mine eventually fixes itself? If I wait some amount of time it eventually will come back to life
suggest starting a new thread with your specific details year even pics...
this thread is 18 years old so unknownif you get a response..
try tagging the name of the original poster in your new thread in case still around...
good luck..but I personally would remove and clean battery cables...and verify good contact
Old 03-22-2020, 11:52 AM
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jackson
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Default

Originally Posted by interpon
suggest starting a new thread with your specific details year even pics...
this thread is 18 years old so unknownif you get a response..
try tagging the name of the original poster in your new thread in case still around...
good luck..but I personally would remove and clean battery cables...and verify good contact

especially where Neg Ground Bat cable attaches to chassis

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