Topic: Need Help With Charging System on a 1984 sr5 efi

[baggedyoda]

ive replaced the altenator regulator and battery plus relays and all fuses and still cant get the altenator to hold any charge if you can help please let me know

[Rocksurfer]

First off the Altenator does not hold a charge.

There should be a wire running to the battery make sure it is intact, also check the grounds to the motor, altenator and the battery for a good solid connection. Grounds are the usual suspects.

[santa cruz crawler]

alt fuse under the dash, if charge light is ON then do a voltage check to the batt ,if good unplug the batt, if this doesent kill the motor then you look at the voltage reg..... there are some fuse links on the drivers side behind the head light hit these connections,  unplug replug and make sure your hot wire going to the alt is good and on there , this is the way i rule out my alt, works every time ..... oh yeah and all the GROWNDS going to the block fire wall ect....hope this helps your volts.!!

[wakkjobb]

Had the same problem; saw in a thread there's a "Charge Lamp Relay" in the driver's fuse block... worth a check. Be prepared if you go buy a new one, Auto Zone wanted like $60 for one and had to order it. Also are your CHARGE and BRAKE lights on in the dash? Might mean something more; turns out a bunch of wires on my 84 were kinda melted so that was my issue.

Among many, many other things 
>>Dan

[baggedyoda [OP]]

im not sure i have the dash torn apart right now nothin on the dash was working either but i did find a couple plugs that where melted and i got some from the junkyard and replaced them and now my brake lights and all the other lights and signals work and they didnt before but still nothing from the altenator

[baggedyoda [OP]]

 :help:does anyone know if the charge lamp relay will stop it from charging or not i called toyota and they said they only have availability of "4"  in the whole nation wow and its $145 for a dam relay kinda confused on whether or not this 1 relay will stop my system from charging or not plz help 

[wakkjobb]

I have an extra, not 100% sure if it works; if I can find my FSM I'll test it and get back with you. If you go to a junk yard, it's an 84 ONLY relay; nothing else looks/fits the same. Trust me, I checked out about 50 84 and newer trucks with no luck.

>>Dan

[baggedyoda [OP]]

still not working right i thought i figured it out but guess not so i can drive it for a few and the amps will read really high and it runs great then it will slowly drop amps and then it will die and i have to get a jump it drains the battery all the way what could this be