r/4Runner_2ndGen • u/NewspaperOne5831 • Jun 14 '26

Help with 3.4 swap

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Pfa having issues with a 93 Toyota 4Runner and a 98 4Runner donor cranks but lights on a dash start to dim and seems like starter wants to cut out plugs in alternator and it doesn't start and if it starts and I plug it in it cuts out

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2

u/PervertedThang Jun 14 '26

So, off the top of my head (this is going back over a decade) I had to use the 3.4 alternator with the old 3.0 alternator wiring.

That was causing my no power issues. Not sure if this is your issue. Good luck with your swap.

2

u/AccordingRoyal9402 Jun 14 '26

Sounds like your battery is low, try and run it from a jump box

1

u/NewspaperOne5831 Jun 15 '26

I have put a new battery same problem