Battery drain could use some help.
Thread Starter
Team Owner
Joined: Feb 2005
Posts: 35,976
Likes: 29
From: San Clemente California
Battery drain could use some help.
New battery drains in under 1-week.
Also, with a fully charged battery the cars volt meter drops 5 amps negative when I hit the brakes and buries the needle all the way negative when I turn on the AC.
its a 1970 Corvette any suggestions? Thanks in advance.
Also, with a fully charged battery the cars volt meter drops 5 amps negative when I hit the brakes and buries the needle all the way negative when I turn on the AC.
its a 1970 Corvette any suggestions? Thanks in advance.
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
Disconnect the positive battery cable...connect a test light between the cable end and the positive post. The test light will probably illuminate. Then start pulling the fuses one at a time. When the test light goes out, you've identified which circuit the problem is in.
If that is inconclusive, an alternative is the alternator may need rebuilding or replacing.
If that is inconclusive, an alternative is the alternator may need rebuilding or replacing.
Thread Starter
Team Owner
Joined: Feb 2005
Posts: 35,976
Likes: 29
From: San Clemente California
Disconnect the positive battery cable...connect a test light between the cable end and the positive post. The test light will probably illuminate. Then start pulling the fuses one at a time. When the test light goes out, you've identified which circuit the problem is in.
If that is inconclusive, an alternative is the alternator may need rebuilding or replacing.
If that is inconclusive, an alternative is the alternator may need rebuilding or replacing.
Melting Slicks
Joined: Mar 2007
Posts: 2,520
Likes: 11
From: Hinckley OH
It sounds to me like your alternator may not be putting out enough voltage. Put a multimeter across the battery terminals without the engine running it should read around 12 volts. With the engine running it should read around 14 volts. The problem with mine ended up being the two wire pigtail that goes into the alternator.
Thread Starter
Team Owner
Joined: Feb 2005
Posts: 35,976
Likes: 29
From: San Clemente California
It sounds to me like your alternator may not be putting out enough voltage. Put a multimeter across the battery terminals without the engine running it should read around 12 volts. With the engine running it should read around 14 volts. The problem with mine ended up being the two wire pigtail that goes into the alternator.
