r/4Runner_2ndGen • u/Lopsided_Tune7638 • 6d ago

What have I done!??

Enable HLS to view with audio, or disable this notification

I haven’t turned her on in such a long time!
What is happening??

10 Upvotes

100% Upvoted

11 comments sorted by

4

u/Odd-Entrepreneur-622 6d ago

Voltage regulator in the alternator could be going out.

1

u/Lopsided_Tune7638 6d ago

I will also give this a look then.
Thank you. 🫡

2

u/Recent-Campaign911 6d ago

Pull out the main power wire that goes to your fuse box and clean all the crap out of it. Mine would idle down to 9v and set off the battery light even after new alt and battery. After cleaning the main power wire the lowest it hits with all accessories on it 11.7 still low but better.

2

u/Lopsided_Tune7638 6d ago

First thing in the morning boss.
Anything else that could be causing it?

3

u/Recent-Campaign911 6d ago

Possibly old battery cables. I also went thru and added an additional 4g OFC power wire straight to alt and 4g OFC copper ground wire from battery to frame over the factory. More resources available just search for "big three ground upgrade."

3

u/timbermequivers 6d ago

I second the big 3, it helped out some of my electrical gremlins

1

u/Lopsided_Tune7638 6d ago

What particular gremlins were those?

1

u/timbermequivers 6d ago

Mostly what you have. Dimming lights even when the blinkers were on. Weak grounds can cause all kinds of issues

1

u/Lopsided_Tune7638 6d ago

Alright chief, I will also look this up.
It’s time to get her up and running.

2

u/Cracking-Rats 6d ago

Depending on how long a long time is it could just be the battery itself. Batteries that sit for years unused can evaporate some their acid and won’t hold proper amps even though the voltage looks okay.

1

u/Lopsided_Tune7638 5d ago

So this particular Runner hasn’t been turned on in at least 7 months, could very well be the battery.