Need Technical advice
- Thread starter LAFF
- Start date
It's a connection problem. Clean all the battery, solenoid and starter connections. There is a possibility the battery jas a shorted cell, after jump start they may work several times. Due a voltage drop test.
Blown88GT
Founding Member
Connections issues don't normally drain the battery, but do what Thief says first.
You probably have an excessive parasitic draw.
View: https://www.youtube.com/watch?v=lRcj1fQcWwU
View: https://www.youtube.com/watch?v=KF1gijj03_0
You probably have an excessive parasitic draw.
View: https://www.youtube.com/watch?v=lRcj1fQcWwU
View: https://www.youtube.com/watch?v=KF1gijj03_0
Okay—clean everything.
I haven’t really cleaned up the solenoid.
And a voltage test as you said.
Has me mind screwed.
What I don’t understand is that it will start fine for a week or more, then just overnight it will do this.
A bad connection can do that. It could also be a parasitic draw that comes and goes. Check volts at the battery every morning and see if it drops.
Blown88GT
Founding Member
Fully charged battery is 12.6-12.7 VDC, engine off.
Below 12 & starter relay will just click.
Below 12 & starter relay will just click.
Well I watched “Eric the Car Guys “ video, and followed his instructions, after running to 0’Riellys and buying a multimeter.
Battery 12.3 —and had no drain on it.
So— clean all connections it is.
Battery 12.3 —and had no drain on it.
So— clean all connections it is.
Gs1987GT
Active Member
If you don't get anywhere with the above, Pull the battery, eventhough new and have it load tested. It may be showing proper volts, but may have a cell going bad and not have proper amperage. You could also have a cable going bad and it has excessive resistance in it. I have a hard crank when hot issue with mine and after I put a new battery in it, if it's still there that's where I'm going next.
Good luck
Good luck
Along with the suggestions made, put the multimeter on the battery in the morning and watch what happens to the numbers when you try to crank it. If it shows ~12.5 volts but drops down to ~8 or 9 as you try to start it, the battery is likely the issue.
Gs1987GT
Active Member
Bad battery.
Could be other things, but most likely that's the culprit. Easy to test. You should be getting 13+ volts from the alternator while running and all accessories off. The battery should maintain 12.6v off. There should be no draw on it when off. Load test battery. Check the connections and main grounds from the battery and engine block to the frame. If the battery is bad, you still need to check the rest. If the rest of the system has an issue, the battery may be the symptom, not the cause. But, it could just be the issue, too.
Could be other things, but most likely that's the culprit. Easy to test. You should be getting 13+ volts from the alternator while running and all accessories off. The battery should maintain 12.6v off. There should be no draw on it when off. Load test battery. Check the connections and main grounds from the battery and engine block to the frame. If the battery is bad, you still need to check the rest. If the rest of the system has an issue, the battery may be the symptom, not the cause. But, it could just be the issue, too.
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How do you load test the battery?
Last night the battery it was showing 12.3
Haven’t started it today, and now 11.8.
Unless I screwed up on the drain test—
Showed no drain.
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