No power at all - Impala Tech
Electrical & Wiring Troubleshooting electrical problems

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post #1 of 8 (permalink) Old 07-09-2014, 11:55 PM Thread Starter
Join Date: Jul 2014
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No power at all

I was driving my 64 impala ss and out of nowhere my car just shutoff. It was dead no dash lights no headlights even when i turned the key It didn't even make a click sound . So i checked everything and i jumped it from the starter got it home then started looking for the problem my battery is good alternator and starter so i checked the ignition switch i unplugged it and then jumped it from the back of the plug of the ignition switch and it started right up . Do u think its the ignition switch and one more thing when i had it started i turned on my lights and it shut the car off
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post #2 of 8 (permalink) Old 07-10-2014, 07:28 AM
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A bad ground can do this. Check them all from the battery cable on.
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post #3 of 8 (permalink) Old 07-10-2014, 03:46 PM
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Welcome to the Team Jared!

Ignition switch will not disable horn or head lights so if those do not work then start with the battery cables: remove, clean, replace, and test operation. Follow the power back until you find the bad connection.

Automotive electronic are tiresome at best to diagnose. You do not need a Fluke multi-meter, but you will need at least one from Radio Shack to determine resistance, continuity, and to read voltage in circuits. A test probe (light bulb on a stick) and a 25 foot length of 12 gage wire with a batter clip on one end and an alligator clip on the other can make finding bad grounds easier as well as it allows you to bypass a rust car to see if a part is receiving voltage.
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post #4 of 8 (permalink) Old 07-11-2014, 03:48 AM Thread Starter
Join Date: Jul 2014
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Ty for all the input. Well here's what i did i had the dimmer switch not bolted down at all after bolting it down I had lights, dash lights & my car started right up . Could that have really kept my car from having no power at all ?
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post #5 of 8 (permalink) Old 07-11-2014, 05:19 PM
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dimmer will not have anything to do with starting.
The connection at your firewall is the most likely problem on your 1964. These are a weak point. remove the connector from the engine side and clean both sides. Look for corrosion or green areas.

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post #6 of 8 (permalink) Old 07-11-2014, 06:00 PM
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Just banging around down by the fuse box working on the dimmer switch probably wiggled it enough to make the connection. That is what I was talking about unbolting every connector and cleaning (wire brush, remove rust, paint with weld through primer and removing any paint beneath the connection before applying final coat of colored paint.

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post #7 of 8 (permalink) Old 07-11-2014, 11:48 PM
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The wire block connector at the firewall is famous for making a poor connection and causing the car to go dead. Happened to me a few times before I rewired it. You can try to get it working better by pulling the connector block off the engine side of the firewall and cleaning the connections, especially the larger wire in the bundle that goes to the radiator support, which is usually the culprit. You will probably find it has been arcing and lost it's spring tension from the heat.

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post #8 of 8 (permalink) Old 07-16-2014, 07:49 PM Thread Starter
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Thanks for all the support. Im going to do all this !
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