frog_dude
Sep 26th, 08, 1:25 AM
The cars been working good for awhile now. No electrical issues. Now leaving the car overnight the battery is almost dead. Just a click or a slight turn of the engine. I tried the AC ripple test. I put the meter on the battery post on the alternator and negative on the battery with the head lights on with the meter on AC. It reads average .06 to .07 with the engine running. Alternator seem to be charging and the idiot light in the car is out. The volt meter in the car shows about 13-14 volts without the head lights on. I tried the positive battery cables hooked up (I have three the car, msd and amp for radio). Then with a test light hooked up to the negative side of the battery with it disconnected. The light will light up for about a second and go out. I leave it for about a minute and connect it again it will flash and go out. Normal? I disconnected the charged battery ground cable and will try in a day or two to see if the car will start.
TCSS1970
Sep 26th, 08, 10:22 AM
I say a bad battery. Take it to a parts store and let them load test it, I bet it'll fail. I would try that even if its brand new before I done anything else.
68KMENO
Sep 26th, 08, 10:40 AM
do you have AN relays ?? fuel pump , elec fans , even a tilt switch on the trunk of hood to turn on the interior lights ?? what about the interior dome light by any change its staying on ?? .... if you load test the battery & find its good try discounting the main power wire to the ALT ...... I've seen several short & drain to ground when the cars off ..... of course then the normal stuff is the lighter plugged in ?? are the brake lights stuck on ?? is the radio playing a tape all night without volume ??
put a volt meter on the battery & pull one fuse at a time until you find your drain :D
P.S. I just reread your post ......... the intermitdant flash sounds like you've got something hooked up to the center post on a relay .... the one with that would flash your horns or headlights when the alarm is sounding ......if its hooked to a set of horns that don't work ...... you may very well be providing a direct path to ground ... & the bi-metal switch that makes & breaks the Flashing / beeping function is acting like a circuit breaker before it heats the fuse to the failure point ......
hook up a battery charger & just watch the guage on the meter ...... if it bounces.... ;)
wills65
Sep 26th, 08, 11:13 AM
I just spent two days at work tracing a battery draw, turned out to be that the glovebox light was staying on. Of course I didnt find this out until I had he whole damn dash out of the car and the headliner. Could be that.....Battery draws are a PITA to track down. The only other easy way to find the right direction is to do what 68KMENO, said, and start pulling fuses until you find the "sucker" (no pun intended)
frog_dude
Sep 27th, 08, 4:43 PM
Left the battery disconnected for a day with no problems. Disconnecting the car stereo amp from the positive side the flash of the test light doesn't happen anymore. I reconnect it and disconnect the positive from the amp with no flash. So I tried pulling the fuse and remote power wire on the amp and it still flashes. Left the starter and msd connected overnight with no problems. So the amp is the problem here.