drained battery
Pro
Joined: Sep 2007
Posts: 577
Likes: 2
From: Van Nuys Ca
ok well hooked up my meter and was watching it drop and then un plugged the alternator cable and no more draw. so i gotta replace the alternator.
also hooked up my kill switch thing. ill try to get some pics
also hooked up my kill switch thing. ill try to get some pics
Pro
Joined: Sep 2007
Posts: 577
Likes: 2
From: Van Nuys Ca
ok replaced the alternator and it looked fine drove it for a day or two and then now i go to get in my car and the battery is dead yet again. my stereo shop guy said that there was 2 accesory wires under my dash and one was getting constant power. that might be the drain there. if i cant fix this soon im about to take it to the dealership and i dont want to.
Melting Slicks
Joined: Feb 2008
Posts: 3,286
Likes: 6
From: Palm Beach
im having about the same problem. i can jump start the car fine and itll run. i hooked up a volt meter after i turned it off and immediately it starting dropping voltage. when the car is running ive seen voltage from 12.9 to 13.6ish or so. voltage at batt was 12.9 with car off. ive tried a couple different batteries (friends had some) and read through the FSM and still kidna lost. i am wondering because in the FSM it says check belt tension and since i put my headers on i lost the brackets on the back side of the alternator. would that cause a loose belt?
sorry for the thread jack i didnt want to start a new post if i have about the same problem.
sorry for the thread jack i didnt want to start a new post if i have about the same problem.
Racer
Joined: Dec 2007
Posts: 345
Likes: 0
From: Flint Michigan, #2 in unemployment, #3 in Violent crimes
I had this problem a few years back and it ended up being a combination of two things.
1: bad voltage regulator for the battery. yours is internal so that is probly why it worked for a bit when you changed the alternator.
2: bad ground between the engine and body and battery NEG cable (secondary, small one) and the body
1: bad voltage regulator for the battery. yours is internal so that is probly why it worked for a bit when you changed the alternator.
2: bad ground between the engine and body and battery NEG cable (secondary, small one) and the body
Team Owner
Joined: Sep 2003
Posts: 20,179
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
You might want to repeat jfb's procedure again.
A fresh alt and batt can easily disguise a leak until the batt runs down again.
Nice write up JFB
A fresh alt and batt can easily disguise a leak until the batt runs down again.
Nice write up JFB
