HELP loosing battery power
Thread Starter
Instructor
Joined: Jun 2006
Posts: 156
Likes: 0
From: homestead florida
HELP loosing battery power
Im loosing battery power ,I put a factory reman alternater and a bran new interstate battery .My ? the car is a 89 its been changed to a carb the instr. cluster doesnt work so I removed it to have rebuilt would this have anything to do with loosing battery?
Corvette Enthusiast
Joined: Oct 2007
Posts: 6,792
Likes: 2,699
From: So. Cal.
2025 C7 of the Year Finalist- Unmodified
2024 C7 of the Year Finalist - Unmodified
2023 C7 of the Year Finalist - Unmodified
I wouldn't think so on the cluster thing. Take a voltage test on the back of the alt. Should get 13.7 volts. Check for shorts. You may be able to determine which elec. curcuit has the problem by taking one fuse out at a time and watch the volt reading. Good luck. May be someone with more knowlage will chime in.
Corvette Enthusiast
Joined: Oct 2007
Posts: 6,792
Likes: 2,699
From: So. Cal.
2025 C7 of the Year Finalist- Unmodified
2024 C7 of the Year Finalist - Unmodified
2023 C7 of the Year Finalist - Unmodified
You should also be able to test the curcuits by using a DVM. Im not sure of the procedure. It will tell you which curcuit is drawing power.
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Easy: Put your DVM in series with the Battery and on high amps, then pull fuses until the draw goes away to identify the problem Circuit. If that doesn't do it, you'll have to start disconnecting the fusible links behind the battery which becomes a bit more difficult because none of them are labled as to circuit. If that doesn't show it, there is a fusible link (for a/c) at the Starter and by elimination, it's got to be it (and if it is it's probably the Blower Motor Module though when that's the problem the Blower Motor is usually running with the ignition off).
