Question about 2004 Cadillac Deville

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2004 cadillac deville has intermittent dead battery

Battery was dead after oil change at valvoline and getting new tires at walmart. is fine at all other times.

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  • stephenmgarn Feb 17, 2009

    The battery is fine; the only time it goes dead is at an auto repair shop.....hmmmm. I have been reading about parasitic battery drains (I have OnStar and XM radio), but can't seem to figure out what technology the auto repair shops have that may be causing the battery drain.

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Do a load test on battery may have a weak cell and is in of replacing they may have left radio and key on which was enough to drain what was left in the battery maybe only operating on 11.5 volts put on all accessories and rear defrost and see what the battery gauge does if it goes really high or if it stay normal or shows a low reading

Posted on Feb 16, 2009

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I have a 2001 Cadillac Deville.The Cadillac dealership has replaced the battery 4 times in the last 2 yrs. Each time they say it's a dead cell in the battery. They can't find anything wrong wi


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Service Tire Monitor


You most likely will need dealer help on this, these older TPMS are not easy to calibrate, it requires a scanner. Next time you need to disconnect the battery use a small charger so the system remains powered up and you don't experience this kind of lost data problem

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Secondly, I would make sure that the tires are inflated to the max. pressure recommended by the placard on the door.

Generally, 35 psi is the max. cold temperature. But, check to make sure it isn't higher for a heavy duty suspension model, if that's what you have. For instance, on my 1997 Cadillac Deville Limousine I have a spec. of 44 psi which is higher than the 35 psi I usually recommend for regular Cadillacs (say like my 1990 Cadillac Deville).

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yes your tire is unbalanced and needs rebalanced like 20 dollar fix have all 4 done

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The alternator may be defective.

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