Your alternator has a problem or its belt is slipping.

 

hmmm funny you say that cause when i have this issue i can usually hear a whine, maybe i should check the belt tension.

Because when this happens my water pump light comes on too

 

Checked the belt its all tight, ill update with the battery test

 

Ok so its the alternator when i got to the auto elect the thing wasnt charging past 10v

should have a replacement tomorrow

edit ive recently tuned the car will i need to do a touch up after the alt replacement?

 

Prob not.

 

KK cool, well ill log it just incase

Cheers guys

 

What was the replacement cost mate if you don't mind?
Apparently the Triton ones are similar too.

 

I ended up getting my auto elec to source an aftermarket one, i know people say not too but the Mitsu one hasnt lasted very long anyway, $400 for the aftermarket one or $1500 from Mitsu

 

Yeah i'd do the same.
I remember someone on EvoOz having the same issue with an ADM8, and used a Triton alt.

Anyhow good to see its back up.

 

This is interesting, so the Triton ones def fit?

 

Can't confirm 100% yet but I remember someone mentioning it a while back.

I'll have a dig later.

 

Ok cool only because the aftermarket Alternator people are only 60% sure the one they are sending fits

 

Ok the alternator didnt fit, so we pull apart the old alternator and found 2 broken soldering bits on the reg, so we have re soldered it and about to put it back in, fingers crossed

 

gluck. I'm going to finish up swapping my alternator tomorrow. Mine was over charging...16-18v spikes. Internal Voltage regulator shot.

Hope your resolder works.

 

Ok the repaired old one seems to be working fine atm, charging at 14.5v steady

The "new" one i got said 4G15 on the box, but the mounting points and plug seemed the same so we thought we would try it, the new one was also only 80amp not 90, we tried it but the battery was on constant checked the volt meter and was only charging at 14.1 and it seems evos need atleast 14.3 to stop the light coming on so this new altinator was not good enough, also the mount points where out and i was only able to use 2 bolts so that was never good enough either.

Anyway my repaired one seems to be working, hopefully the solder breaks where the only fault