I have a 2001 Mitsubishi Galant GTZ, well we had a very bad storm last week which flooded the streets, after things cooled down i went to see a movie and ended up driving into a 1 way tunnel which was flooded, maybe a foot and a half deep, well i got through it fine, but maybe 10 mins later i noticed the "BATTERY and BRAKE" light dim on and off, i pulled over and looked into the engine bay and noticed nothing different, so i continued to drive, i flicked the wind shield wipper blade on and noticed it moved verry slow, after that things went down hill, all my lights, interior and exterior started to slowly dim so, my CD player cd off, and even my tacks on my dash stoped working (everything dropped to 0) (rpm, speed,etc...) so i parked my car and let it sit over for a day, i come back and open the door and notice the door light very dim, tried to start it and it didnt turn over, so i had a buddy jump it, and as soon as i had external power from the jump, everything worked, lights mega bright, my tacks all work, everything was good, but as soon as i took the jumper cables off, everything started to slowly die again, lights, tacks, and all, anyone have an idea??? this is a 6cyl mitsubishi galant, 2001

 

Check every grounding cables, check the alternator. Mine on my Outlander is very low so maybe he get flooded and maybe that cause your problem. Because the alternator provide the current when the engine is started and if everything is dim without the jumper cables, that probably means there's a problem with the alternator itself. Try that and see what's happen!

 

My buddy and I, aswell as what you said, think its the alternator aswell, but my question now is how the hell do you remove the upper bolt on it? we've gotten the other one off, but this one on the top is sooo tightly on there, we actually ended up breaking 2 tools, and almost stripped the bolt itself..do we use a torch and heat it up or something?

 

Yes, you can try to heat up the bolt itself then right after, poor cold water on it. But is the bolt's treads are seized inside the alternator or a bracket? Because, you can't heat up too much the alternator because is made with cast/iron or aluminium, not sure about material but, if you heat up too much the alternator, it will melt so...You don't know yet, if it's the alternator the problem or something else right?? So, you don't want to break it! Heat it up only if the treads are sized in the bracket, other than that, if you have enough room to hit the head of the bolt, with a punch and a hammer very strongly to release the treads inside the alternator, sometime that works...are you able to send me some pics of your alternator and the mounting bolts. Maybe it's gonna help to explain, cause it's hard to say when you didn't see it. Keep me posted buddy!!!