Total loss of electrical power while driving. - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

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post #1 of 5 (permalink) Old Jun 9th, 18, 7:34 AM Thread Starter
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Jon
 
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Location: Erlanger, KY
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Total loss of electrical power while driving.

Trying to track down this electrical gremlin.
Car looses all electrical power for about 30 seconds while driving. (Very dangerous).
I thought is was my push button start system till yesterday when it quit and I tried the horn and 4 ways and had nothing so it must be alternator, battery or ground cables.
Any suggestions?
Can a battery short out internally to break the connection and then unshort to restore power. Same question about the alternator?
I need to check all my main connections but heading out to the Power Tour this morning so will have to wait till I get back.
Was going to take the Chevelle but now will have to take my "Plan B" 2015 Corvette. (yah I Know)


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post #2 of 5 (permalink) Old Jun 9th, 18, 8:29 AM
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Eric
 
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Re: Total loss of electrical power while driving.

Yes the battery can short cells internally, however it won't cause your issue. If a battery completely shorts (usually when it goes dry), it usually leads to an explosion. The problem your having is either the 1without 10ga red wire that goes through the bulkhead connector is losing contact either there or at the junction block. The engine will run with no alternator for a time and will run (just not start) without a battery until its turned off.

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post #3 of 5 (permalink) Old Jun 9th, 18, 8:14 PM
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Randy
 
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Re: Total loss of electrical power while driving.

Bulkhead connector is often the culprit.
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post #4 of 5 (permalink) Old Jun 10th, 18, 1:29 AM
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Ed
 
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Re: Total loss of electrical power while driving.

Especially if the engine still runs when it happened . My 1975 Impala would lose all internal power, and if you pulled the hood release it would come back on.

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post #5 of 5 (permalink) Old Jun 10th, 18, 5:26 AM
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Geoff
 
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Re: Total loss of electrical power while driving.

Yes, a battery can short internally. I had it happen, engine quit. Optima battery, only 18m old. The battery shorted, pulled down the alt voltage such that voltage was too low for the ign to be sustained.
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