68 lost electrical power while driving - Team Camaro Tech
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post #1 of 8 (permalink) Old Sep 7th, 14, 11:01 PM Thread Starter
Vick
 
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68 lost electrical power while driving

68 camaro
350 - nothing special
Stick shift
New battery - got it in february

Hi guys,

over the last weekend I adjusted the timing and the carburetor on the car.
I took it this weekend to the market and while driving I lost all electrical power. When I tried to start the engine, the red light was on, but it didn't crank the engine. I disconnected the battery, connected back and the car started right up. I was told the terminal was loose so I tightened it and drove home for about a mile.

Today I reconnected the battery and tightened the terminals. I drove from one store to another and than to my brother's place. All together would be around 10 miles. 10 minutes later I took my car for ride with my friend. I was driving at 50mph when I pushed the clutch in, pressed the brake pedal /was braking hard/ and the car lost electrical power. I managed to turn into an alley. It was completely dead. The terminals were tight, but after awhile I managed to take it off. As soon as I reconnected the lights came back and the car started without any issues. I just drove for another 2 minutes and parked it. Twenty minutes later i took the car back home /6 miles/ and I was fine.

What do you think my car might be experiencing??? I'm clueless. All the cables from and to the battery are tight. While the car was running I tried to twist the cables just to make sure they are okay, it all checked out. Also for the car to get it's power back it needs to be disconnected from the battery and than reconnected again.
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post #2 of 8 (permalink) Old Sep 8th, 14, 03:47 AM
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Re: 68 lost electrical power while driving

Suggest the following:
1. Remove battery cables and clean posts and clamps with battery terminal cleaner - wire brush. Clean neg cable end at engine block.
2. Junction block next to battery - follow positive pigtail to the block.
remove terminals, wire brush and reattach.
3. Horn relay buss bar - same as #2.
4. Alternator BATT stud - same as #2.

Idle rpm set correctly?

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post #3 of 8 (permalink) Old Sep 8th, 14, 03:49 AM
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Re: 68 lost electrical power while driving

Check the pigtail connections from the battery to fender (neg) and from battery to firewall (pos). Then check the wires leading to the horn relay. Make sure you check for corroded/loose connections. The chassis is powered by those two small leads. Only the starter uses the big cables.

Kevin


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post #4 of 8 (permalink) Old Sep 8th, 14, 09:57 PM Thread Starter
Vick
 
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Re: 68 lost electrical power while driving

Thank you guys. Will look at it over the weekend and will report back to you :-)
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post #5 of 8 (permalink) Old Sep 9th, 14, 10:00 AM
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George
 
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Re: 68 lost electrical power while driving

Could a bad or overheating voltage regulator cause this?
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post #6 of 8 (permalink) Old Sep 9th, 14, 01:47 PM
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Re: 68 lost electrical power while driving

The VR regulates charge going to the storage not the distribution of stored power in the "Energizer" aka battery. There seems to be a disconnect in the path from the battery to his ignition since he has no crank but has accessories.


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Last edited by 69-Pace; Sep 9th, 14 at 02:37 PM.
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post #7 of 8 (permalink) Old Sep 9th, 14, 02:17 PM
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Re: 68 lost electrical power while driving

Almost sounds like a fusible link issue. There isn't a circuit breaker in the ignition system anywhere, is there? Definitely a disconnect in the ignition somewhere. Perhaps a bad solenoid or ignition switch??
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post #8 of 8 (permalink) Old Sep 9th, 14, 02:41 PM
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Re: 68 lost electrical power while driving

I'm not sure if he has accessory power in the passenger compartment or not when it dies. If not I would suspect the bulkhead connector, or the main splice at the Horn Relay bus-bar. Not sure if he has tried to jump the starter with a screwdriver and also jump the starter solenoid to see if power is getting there. There are two or three threads with similar issues going right now.


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