Big 3 and wierd problems.

[n3w_3ra]

I just got my sky high car audio 0 gauge ofc, I had the big three on my car before with some old 0 gauge from my welding shop from the alternator to the battery positive. I had some cheap *** 8 strand 4 gauge from home depot for my grounds.

2 days ago I soldered my skyhigh car audio 0 gauge ring terminals to the shca 0 gauge ofc and heat shrinked them. I removed the cheap 4 gauge and the old welding wire. I have all my stock connections still attached. So today on my way home I noticed my car was steady at about between 13.4-13.8 my car always sits at 14 with my subs off. So I got out and checked all my connections the alternator connection was slightly loose. I tightened up and got back in and started it and it was back at 14 volts I revved it a few times and it would drop down to 13 everytime I revved it.

Before I did the new wire I never had any problems....

Any help would be awesome

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[Beef26]

I think you answered your question. Something is not tight enough or you need to sand and clean up all your connections. Double check your ground

 

[Side Show 10+ year member]

yeah redo your ground

 

[keep_hope_alive Premium Member]

by redo - we mean clean off the grounding surfaces. over time, the grounds oxidize and lose conductivity.

 

[n3w_3ra]

I grinded my frame ground down to bare metal maybe I should try to clean up my engine ground? I grounded it to the same spot as factory but it's hard as **** to get to.

 

[Side Show 10+ year member]

yep, make sure the terminals on the batt is tight too

 

[MrFoca]

You can grind away. But over time it will become surface rust again. Every so often you could take a wire brush and clean the area up. Every & any ground should be clean as possible.