AT/Brake/Volt light flickering (1 Viewer)

[pjskinner]

1992 FJ80, untouched motor here. On the way home tonight the AT oil, e-Brake, and volt light flickered under deceleration. it looked like the volt meter may have been a little lower than typical, but I have no had any charging issues since I bought this rig about a year ago...
A search of the forum came up with all sorts of stuff. I've got a lot of tools, but not a lot of electrical knowledge. I am hoping to leave in a week and a day for the grand canyon, and my 9yo daughter really wants to go in the Land Cruiser...

Any help would be muy appreciated!

 

[jonheld]

Dash Christmas lights are telling you there's a problem with the charging system. Most likely the alternator is past due for replacement. Go with an OEM rebuilt unit or you'll be doing it gain in short order.

 

[Jason hansen]

Some times is the simple things like corroded battery connections or a loose connections, it doesn't take much to impead 12 volts.

 

[pjskinner]

Thanks for the suggestions. Is there a vendor for a rebuilt oem alternator? I'm not a fan of AutoZone ANYTHING.

 

[CJF]

We're blessed to have three awesome Toyota parts vendors/supporting members here. Order from any one of them and you can't go wrong:

https://forum.ih8mud.com/members/cruiserdan.854/

https://forum.ih8mud.com/members/beno.4146/

https://forum.ih8mud.com/members/sam-stewart.68992/

 

[pjskinner]

Thanks!! Question, looking online I see two alternators; an 80 and a 90 amp. My brain says the more the better, but am I wrong here?

 

[jonheld]

1991 3FE gets the 80 amp with an external fan.
Most 1992 get the 90 amp with an internal fan.
The 90 amp unit can be rebuilt/upgraded for more output. The 80 amp unit can't. The 90 can be made to fit where an 80 lived, but is not a direct bolt on.

 

[CJF]

Most 1992 get the 90 amp with an internal fan.

Really? I've noticed zero differences under the hood between my 91 and my 92, except maybe the heater valve.

 

[pjskinner]

Thanks, guys! Any pointers on how to differentially diagnose charging problems? I'd love to learn more from your knowledgeable minds and see if I even need a new alternator.

 

[jonheld]

Really? I've noticed zero differences under the hood between my 91 and my 92, except maybe the heater valve.

Offhand I don't remember what month they started with the 90 amp alternator, but a lot of 92s have them.