Question about 1998 Cadillac DeVille
Brand new battery, after the car sits for more than 8 hrs. it's dead. Something is making a moped acceleration sound after it is shut off, assuming that this is draining the battery.
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Posted on Jan 02, 2017
I stated "such as a light " there are many, many other causes of 12 volt drains such as a seat switch that might hang up and stick. Empty that battery overnight. First install a 9V Battery Radio memory / and clock or you will have to reset both. Disconnect BLACK negative cable of battery. Using a 12V testlight, connect one end to the disconnected cable, and the other to the negative battery terinal. It should light. Remove the 20A BODY and LIGHTER fuse first . This will eliminate the courtesy light circuit . If light goes off the drain is on that circuit. STILL LIT ? drain is on another circuit. Start by eliminating fuses. Hope this helps.
Posted on Apr 13, 2009
SOURCE: battery goes dead intermittently
Quite often the alarm system ends up being the culprit. If you have, or know someone, who has a clamp on amp gauge that can test the draw from that circuit, it should tell you what you need to know. It could be that or a combination of various draws from your system.
Posted on Mar 22, 2009
The A/C compressor constantly turns because the pulley is connected into the serpentine system. The whining noise is pretty indicative of a low charge in the A/C system. I would start by having your A/C pressure checked and charged if needed.
Posted on Jul 03, 2009
you should not have more than .005 amp draw after you are sure all elec. controllers go in to sleep mode this can take up to an hour
Posted on Aug 19, 2009
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