2004 Cadillac Escalade Battery not holding charge

Tiny
HIDD1987
  • MEMBER
  • 2004 CADILLAC ESCALADE
Interior problem
2004 Cadillac Escalade V8 All Wheel Drive Automatic 100k miles

I bought a brand new battery in Jun 09 and I had two amplifies attached to the battery. So I disconnected both amp to troublshoot the issue. Drove the SUV for 2 days and let it sit over night. Then next morning battery dead. There is not corrosion and the terminals and cable are clean. I'm trying to figure out what is draining the battery.

Thanks
Friday, February 12th, 2010 AT 6:20 AM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
It is anyones guess what is draining it. It sounds like a rather large drain. Often times when extra amplifiers are installed, there is usually other items like a stereo, possibly an alarm system. When this stuff is tapped into circuits for power, and signals, it can be prone to keeping modules awake. All of the aftermarket items have to be disabled, before it can be determined that the vehicle itself, has a problem. Once the vehicle is back to original state, and the draw is being measured and determined excessive, then circuit fuses can start to be removed in an attempt to determine which circuit is causing a drain. Other than that, it is a crapshoot. It could be a bad battery, but this also can't be determined until the parasitic load is assessed.
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Friday, February 12th, 2010 AT 11:13 PM

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