battery going dead????
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Junior Member
Joined: Nov 2004
Posts: 8
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battery going dead????
every time i turn on or off my switch, i hear a thump over mt speakers. and if my truck sits for longer than 24 hours, i have to charge my battery. what is my peoblem, i have a 97 150 with a 4.6, please help
Senior Member
Joined: Oct 2002
Posts: 7,295
Likes: 125
From: St. Louis (Out in the woods)
Check for a parasitic power drain in excess of a 100 mA. Glovebox lights are good for this. Also, make certain that all components of your audio system (if an add-on) are being switch off when the iignition switch is turned off.
If no power drain is found, assume your battery is failing.
Steve
If no power drain is found, assume your battery is failing.
Steve
Senior Member
Joined: Jan 2004
Posts: 130
Likes: 0
From: Utica, NY
Do you have an aftermarket amp installed? The "thump" indicates to me that the amp is wired such that it stays on all the time, instead of turning on and off with the head unit...Does the "thump" go away if you cycle the ignition with the radio turned off?