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1990 electrical relay clicking

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Old 04-13-2018, 05:30 PM
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HarryBC
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Default 1990 electrical relay clicking

With spring here I decided it was time to drop the top and enjoy the weather. The battery was dead, hooked up a charger, clicking noise started when energized the car under front of hood around headlights, can feel the hammer effect on left headlight the most. Disconnect the charger, electrical system dies and tapping or hammering stops as well. Any ideas? Thanks, Harry
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Old 04-13-2018, 06:22 PM
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PatternDayTrader
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Low voltage does weird stuff sometimes.
Maybe charge the battery for awhile with one of the battery cables disconnected, then repeat.
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Old 04-14-2018, 10:47 AM
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NavAir
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Originally Posted by PatternDayTrader View Post
Low voltage does weird stuff sometimes.
Maybe charge the battery for awhile with one of the battery cables disconnected, then repeat.
Exactly correct. Ask me how I know...
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Old 04-14-2018, 12:45 PM
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aklim
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Originally Posted by HarryBC View Post
With spring here I decided it was time to drop the top and enjoy the weather. The battery was dead, hooked up a charger, clicking noise started when energized the car under front of hood around headlights, can feel the hammer effect on left headlight the most. Disconnect the charger, electrical system dies and tapping or hammering stops as well. Any ideas? Thanks, Harry
Disconnect the battery and charge it up. I would rather charge it off car than on car simply because I don't trust the battery charger not to spike.
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Old 04-14-2018, 12:53 PM
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AirForceOne!
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Been using a battery tender for 6 years now, never an issue!
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Old 04-14-2018, 07:36 PM
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Yukon Corleone
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Originally Posted by AirForceOne! View Post
Been using a battery tender for 6 years now, never an issue!
I have been using the Deltran Battery Tender on my 1990 also and now I donít have to replace my battery every other year.

HarryBC it sounds like you need a new battery.
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Old 04-16-2018, 12:33 PM
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jts90vette
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Originally Posted by aklim View Post
Disconnect the battery and charge it up. I would rather charge it off car than on car simply because I don't trust the battery charger not to spike.
I completely agree with this! Why chance it? How long does it take to remove the battery cables..........30 seconds? Remember as old as our cars are getting, a lot of the electronic/electrical parts are getting hard to find. Itís your car though, just sayin!
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