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Old 12-10-2010, 23:11   #1 (permalink)
Dubalub
 
Join Date: Dec 2010
Location: Detroit, Michigan
Age: 24
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2000 Crown Vic cold start/battery issue.

While i'm driving my battery guage will dip to extremely low if I have the radio on, the headlights and the heat blowing, this seems to be an alternator problem, but i've had it tested along with the battery and the starter at autozone, no problems detected at all. The battery is used, but in good working condition, the alternator is fairly new, and the starter is still factory. The reason i add the starter into this post is because I work as a security guard (in my own car) where i spend a lot of time 8 hours+ per day, and if my car is not running with the radio on for 15-20 minutes, the battery dies just enough to where my car is unable to start. Everything inside my car is factory, so im not drawing unnecessary power from the battery, so i ask all of you, what could this problem possibly be?

I have noticed some build up on my battery posts, but nothing too excessive, so i've been keeping them extra clean every time i get a chance. Is my only option to buy a new battery? Because so far this Michigan winter is kicking both my cars ass and mine haha.
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Old 12-11-2010, 08:56   #2 (permalink)
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Re: 2000 Crown Vic cold start/battery issue.

20 minutes of radio use shouldn't discharge a good battery. How old is the battery? Is it the proper capacity? You may have something else going on but I would have the battery tested again by a reliable tester. Some of the personnel at the chain auto parts stores aren't so great at operating the test equipment correctly, IMHO.
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Old 12-11-2010, 10:47   #3 (permalink)
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Re: 2000 Crown Vic cold start/battery issue.

Quote:
Originally Posted by floater3 View Post
20 minutes of radio use shouldn't discharge a good battery. How old is the battery? Is it the proper capacity? You may have something else going on but I would have the battery tested again by a reliable tester. Some of the personnel at the chain auto parts stores aren't so great at operating the test equipment correctly, IMHO.
The battery is a referb from a battery specialist, was only like $50 with a two year warranty, It is the right capacity i believe, 665 cca? (Don't quote me on the cca as i'm unsure) Should I go back to the battery specialist and have him check it out? Maybe upgrade to one of those Gel Cells I keep hearing about?
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Old 12-11-2010, 11:29   #4 (permalink)
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Re: 2000 Crown Vic cold start/battery issue.

You'll save a little cash with a refurb but you get what you pay for. I've had good luck with Diehards, Interstates and AZone Duralasts...5-to-6 years +. The chains are offering 2 or 3-year replacement and 7-8 year pro-rated warranties on batts for $90-$100...probably more for a Diehard. 665cca is only middling as AZ's range from 650 to 850. If you live up north, I wouldn't scrimp on a battery! I live in the KC area and it gets plenty cold here and I want a battery I don't have to worry about. I"ve had no experience with the gel types except on small motorcyles. They are good but may not be worth the extra cost.

I would have someone else other than the guy who sold you the battery test it but it's pretty obvious that it's falling short. He'll probably try to talk you into a more expensive option and kinda has you hooked by your initial investment,maybe.
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Old 12-11-2010, 12:06   #5 (permalink)
Dubalub
 
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Re: 2000 Crown Vic cold start/battery issue.

Quote:
Originally Posted by floater3 View Post
You'll save a little cash with a refurb but you get what you pay for. I've had good luck with Diehards, Interstates and AZone Duralasts...5-to-6 years +. The chains are offering 2 or 3-year replacement and 7-8 year pro-rated warranties on batts for $90-$100...probably more for a Diehard. 665cca is only middling as AZ's range from 650 to 850. If you live up north, I wouldn't scrimp on a battery! I live in the KC area and it gets plenty cold here and I want a battery I don't have to worry about. I"ve had no experience with the gel types except on small motorcyles. They are good but may not be worth the extra cost.

I would have someone else other than the guy who sold you the battery test it but it's pretty obvious that it's falling short. He'll probably try to talk you into a more expensive option and kinda has you hooked by your initial investment,maybe.
So far i've done no business with the guy who sold me the battery, its all been at autozone or murrays, my thinking is to stop by the dudes shop and have him test it and hopefully tell me whats going on. But if the diagnosis is a new battery, you say i can go up to an 850 cca in any of those brands you listed?
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Old 12-11-2010, 13:13   #6 (permalink)
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Re: 2000 Crown Vic cold start/battery issue.

I had been shopping for a battery for my van and was comparing at Advance and AZ and noticed that for a CV they both offered up to 850. Haven't checked Sears but I'm sure they offer similar.

The OEM rating for a CV (civilian anyway) is 650. Last year I put a 750 in mine from Advance. I bought the car from a state motor pool and it had a big Interstate in it. Last winter it was 6-years old, so I went ahead and replaced it as it was probably due.
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