Question about Cadillac DeVille
On my 1999 Cadillac Deville my battery keeps dying and I was told that I had an electrical shortage.Can you explain to me what is a "inadvert"?
Double posted, why do that, why not add answers to the first post
elaborate there. please.
and again i answer, WHERE did you see that word
on line, on dash ,in missing operator guide? or rumor.? where?
and we can do drains easy, and is on your first post.
Posted on Oct 20, 2013
To run the battery down over night, points to a pretty good drain. At
least a light left on, it should be easy to determine if that is the
cause. Don't forget the light under the hood, in the glove box, and in
Another problem may be a good battery, getting poor recharging. The battery may start the car fine in fully charged condition, but if the alternator is not putting out the proper voltage and amps, it will not only not recharge, driving the car will continue to discharge the battery. This often is not noticed, until you turn off the car, and cannot restart due to a low battery condition.
Do not overlook the battery cables. Often they look fine, but if there is a small amount of corrosion between the positive battery cables connection at the battery, that will create a poor connection for starting, as well as a poor connection for the alternator to resupply the battery with electrical power. Remove and clean to bright metal ALL battery cables and clean ALL of the ends. Be sure to also clean the battery terminals to bright metal condition, and be sure to clean, or replace, the battery terminal bolts.You may also want to take it to autozone they will put it on a diagnostic scanner for free and that may also help you narrow down your problem.
Posted on Oct 20, 2013
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Posted on Jan 02, 2017
have the alternator checked it could test good and still be bad but it can also drain the battery 9 times out of 10 its the alternator thats draining the battery
Posted on Feb 01, 2009
sounds like a 12V drain on the system, like a trunk or glove box light that won't shut off.> Could be many. many other reasons why. The way I would find the draining circuit would be to remove the neg cable of the battery. I then would connect a 12V test light between the neg battery TERMINAL and the neg battery CABLE. With a 12V drain the light will shine. I would install into the light a 9V battery powered recepticle to hold computer and radio station memory. Then I remove fuses 1 at a time, then reinstall, at the same time looking for the 12V light to go out. Hope this helps.
Posted on Apr 05, 2009
There's a blower motor (fan) under the hood and up against the firewall near the center of the car that takes some work to remove. It has gone out in the last 2 of my 4 Cadillacs. Turns out if you're not real careful with the positioning of the spark plug wires they will brush up against it, and if one of them gets cracked or brittle it will "arc" and short out the blower motor. The a/c compressor should still come on (you'll hear a click when it engages) but you won't get any air blowing into the cabin, hot or cold.
The part was like $200 stock (year 2000 prices) and it took about an hour to remove it. My Caddy at that time had this damn strut bar going across the engine bay which we eventually removed to get to the blower motor.
Posted on Apr 09, 2009
HELLO.THE BATTERY ON YOUR CAR IS UNDER THE BACK SEAT.SIMPLY PULL UP ON THE FRONT OF THE SEAT BASE AND THE BATTERY WILL BE THERE. (CARFULL IF YOU ARE TAKING THE SEAT OUT THERE IS A CONNECTION ON THE PASSENGER SIDE UNDER THE SEAT FOR THE HEATED SEAT ELEMENT SIMPLY UNPLUG AND THATS IT GOOD LUCK RAY.
Posted on Jun 21, 2009
You should check for voltage draws when the vehicle is off... Disconnect the negative battery termal, Pull dome light fuse,and connect a light or volt meter between the two.
common offenders are alternator diodes. These fail and cause drain.
Then you have to check, circuit by circuit, until you find the offending system.
Also, before doing anything, disconnect negative terminal and see if the battery is still fully charged after a few days...
Posted on May 24, 2010
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