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Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-01-2006, 07:14 PM   #11
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I've mentoined several times and for those that havent done so, The negative ground lug is inadequate, And they ground it to a painted surface. I never had the voltage gauge wiggle , but when I put my Alpine Subwoofer Amp in and cranked it, the lights would dim and the motor run rough at an idle. I replaced the cheap *** aluminum lug with a brass one with a set screw, sanded the paint off the body where the lug made contact, put no-ox compound in between and have had no further problems. This little oversite on GM'* part could cause the battery to die from constant charging, blow the altenator, and a host of wiring harness problems. (Like the high amp fog harness???) Gotta love GM'* comittment to hairline engineering
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Old 11-01-2006, 07:15 PM   #12
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A battery that is dormant will discharge naturally over time.
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Old 11-01-2006, 08:23 PM   #13
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Venom is probably right. I not sure what the battery bolt was, but I can't remeber the last time I saw GM terminal bolt go bad. It could have easily been the strap bolt.

And I have to agree with Markwb. Not cycling a battery isn't good. That'* why people pull their batterys out for storage. And I check the build date on the door... 6/04 (must have been a reeeal early 05 model). I got the car with virtually zero miles in 4/06(?) So, it was almost 2 years old.
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Old 12-20-2006, 11:41 PM   #14
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It'* been a couple months, and since everything is pretty quiet on the GXP site, I thought I'd give an update...
...car'* been starting fine. And the volt gage has been as steady as a rock.
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Old 12-22-2006, 06:54 AM   #15
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Quote:
Originally Posted by markwb
A battery that is dormant will discharge naturally over time.
Don't you also get a coating of sulfate on the lead plates inside the battery too?

ZeeVert, I am assuming that they replaced you battery with an identical one (AC Delco?) The stock battery from my 04' LeSaber is acting like it has seen it'* better day'*
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Old 12-22-2006, 10:46 AM   #16
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Looking back..I think the battery threads were probably loose so long they were beat up and needed to be changed out.
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Old 12-22-2006, 03:44 PM   #17
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Quote:
Originally Posted by Cheetah
...ZeeVert, I am assuming that they replaced you battery with an identical one (AC Delco?) ...
I'm not sure what they used, but it almost has to be OEM/Delco, because they replaced it under warranty.
Personally, I don't care what brand I get. I've had lot'* of batteries and lots of them go bad. The shortest life I had on an OEM was 6 months on a '99 Dakota (But, I had left the lights on for several days on that one.) Anyway, I usually shop for price on replacements, rather than brand.
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Old 12-22-2006, 06:55 PM   #18
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Quote:
Originally Posted by Cheetah
Don't you also get a coating of sulfate on the lead plates inside the battery too?
Yes, good point, I think it'* called stratification of the plates. Detrimental to the long term life of a lead acid battery.
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