Hey I am new to the forum and just bought a 90 4runner with 220,000 miles on a 3.0, Nice looking truck for its age - stock - I have the brake, battery and at oil temp light that stays on. I had the alt. checked and its ok, oil pressure is ok, engine temp is ok, new battery. Any tips would help. thanks

 

Start tracing your main charging wiring. There might be a bad part thats preventing full current from making its way from the alt..

Automatic trans??
How does the fluid look?

What size tires you running?

 

Hey thanks .. gives me a place to start!

 

Seen a short in the main harness do that once. X2..check your voltage at your battery that's coming from the Alt and see what it's reading.

 

ok. Before I got the new battery sometimes those lights would flicker on and off but usualy end up on all the time now after taking out the alt and having it checked and with the new battery they are always on AND now the check engine light came on ! Hey thanks for the input