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#1
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Draw on my battery
Just finishing my 67 GTO. I installed new everything, or darn near. Yesterday I went to start the car to take it on a shake down run and the battery was dead. I charged it up and today I put a test light between the pos post and the pos cable. The light lights rather dim for about 2 seconds as it goes dimmer until it goes out. I can do this numerous times with the same result. The only things wired hot are some relays I installed for ignition, a/c, and headlights.Anyone have an idea what's causing this?
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#2
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Did you have the battery load tested. Even if it’s new it could possibly be bad. Not likely but possible.
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#3
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maybe the clock if you have one
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The Following User Says Thank You to 428goat For This Useful Post: | ||
#4
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Replacement radios have a very small "keep alive" current draw for their memories.
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My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic. |
#5
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Sounds kind of like the clock ... if you've ever watched one ... they start up when you apply power and will keep running for a while after you remove power. Kind of like they "charge" up first ... might explain the test light behavior ... but a clock shouldn't drain your battery.
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I'm World's Best Hyperbolist !! |
#6
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Quote:
How long had the battery been sitting? Did you have it on a trickle charger? Do you have a DVOM or other troubleshooting tools to find the parasitic draw?
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Mike |
#7
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What type of Alt are you running… I just found my 9+ year battery drain yesterday… it was how the alt hooked up….wtf
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#8
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I doubt they were still using them in 1967, but earlier car clocks used a small electric motor to wind a spring that drove the clock. As the spring wound down it would make a set of electrical contacts that provided power to the electric motor. The motor would wind the spring until the contacts opened back up. The motor only ran for a couple of seconds which wound the spring enough for 15 minutes or so of clock run time.
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My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic. |
#9
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Glove box light gave me fits
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72 Luxury Lemans nicely optioned |
The Following User Says Thank You to indymanjoe For This Useful Post: | ||
#10
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Grab a multi-meter and start testing circuits.
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1966 Pontiac GTO (restoration thread) 1998 BMW 328is (track rat) 2023 Subaru Crosstrek Limited (daily) View my photos: Caught in the Wild |
#11
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Ding Ding Ding! We have a winner! Thanks Indymanjoe. You were spot on. Thanks to all that helped with suggestions.
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#12
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Glade you figured out … faster then almost 10 years… it took my slow ass………SMDH
Great help PY!! Love this forum! |
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