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00 cadillac deville
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11 Posts
Discussion Starter #1
00 deville Battery not charging warning comes i tried to start it it wouldn't
i let sit 30 minutes and i started but 5 minutes in to driving the warning comes back on i figure its the alternator.
 

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2000 DEVILLE,2001 STS.
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122 Posts
Pull the codes to make sure it's your alternator.I replaced mine a few months back on the wifes DeVille. Code po621 came up ( L-terminal circuit problem )
The Alternator is kept cool by engine coolant. I had to remove the Rad/Fans to replace. Not too hard to replace but a little more work than the average car.
 

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1996 Deville LaSalle edition
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17 Posts
You might also check your connections at the alternator and the battery. Could be just loose or corroded.
 

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White Diamond '03 DHS (with DTS floor shift)
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86,990 Posts
Liquid cooled alternators where only used for 2 or 3 years.
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,990 Posts
I guess the case has a water jacket that has an inlet and outlet line connected to the water pump or some point in the cooling system.
 
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