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Old 07-12-2011, 04:28 PM   #1
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Crown Vic 2V alternators

Do the police units get overdrive pulleys for the alternator? I need one and can't find one. I seem to recall that the police units had that as part of the package to handle the extra power load at idle.
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Old 07-13-2011, 05:46 PM   #2
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I don't think so. We have the higher output alternators, but I don't think it has an underdrive pulley. I'll try to compare my CVPI to my wife's GT when she gets home later.
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Old 07-14-2011, 12:41 AM   #3
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O-ver-drive! not underdrive. Overdrive will spin the accessories faster. Cop cars idle alot and they have more electrical demands than the average car. And from I was told they overdrive the water pump to keep it cool and overdrive the alternator so as not to have battery issues. The alt pulley should be smaller than your average Mustangs.
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Old 07-14-2011, 07:46 PM   #4
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Duh, yes I can read. My error.....I will compare them when the rain stops.
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Old 07-15-2011, 01:15 AM   #5
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Yeah i probably over reacted on you. sorry. its was the end of a day where a few things had gotten under my skin.
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Old 07-18-2011, 09:44 PM   #6
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I have a alt from a 03 police interceptor. It has what i would call an "over run" pulley. if you spin it fast and stop it the alt keeps spinning. Its for sale too BTW
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Old 07-18-2011, 10:39 PM   #7
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the water pumps on the cvpi are the same as the mustang, the alternator on the other hand is different the mustang 2v has a 130 amp alternator and the crown vic has a 200 amp due the demand of electricity by warning lights and sirens and etc. the alt. pulley is the same diameter but most(at least the later ones) crown vics have a clutch-type mechanism incorporated in the alt. pulley the prevent belt chirp while shifting under hard acceleration bc the belt routing is slighty diff. from cv to mustang(less belt surface on pulley of cv)...hope that answers some questions...
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Old 07-19-2011, 09:53 AM   #8
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What years did that clutched alternator come on?
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Old 07-19-2011, 10:06 AM   #9
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Mine was on an 03. You can go to the oreilly auto website. Look up the 200 amp alt for an 03 and click on compatibility. That will show you all the years it fits.
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Old 07-19-2011, 04:25 PM   #10
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I only ask because I just bought an '01 CV police interceptor one. If that matters. And aside from a smaller pulley it looks identical to the one sitting on my '00 GT.
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Old 07-19-2011, 06:31 PM   #11
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Sorry, I haven't been able to compare them yet. My schedule has been different, and busy, this week. For what it's worth, I've been driving CVPI's for 10 years. The most common failure I've had is the alternator. Even brand new, they haven't lasted more than 3 years....even the factory one on my 08 with 32k miles on it. Every single CV I've had as a take home car has had atleast one replacement.
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Old 07-19-2011, 07:51 PM   #12
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the clutched alternators were 200 amp and were 03 and up and only on the police interceptor models. the 99-02 crown vics(pi and civilian model) had the same 130 amp non clutched alternator as the gt. the clutched alternator was also fords fix for premature alternator failure on the police interceptor due to the constant hard acceleration and deceleration. hope this helps guys
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Old 07-20-2011, 12:32 AM   #13
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Quote:
Originally Posted by 2000mongoose View Post
the clutched alternators were 200 amp and were 03 and up and only on the police interceptor models. the 99-02 crown vics(pi and civilian model) had the same 130 amp non clutched alternator as the gt. the clutched alternator was also fords fix for premature alternator failure on the police interceptor due to the constant hard acceleration and deceleration. hope this helps guys
Funny that GT guys dont have more frequent failures then. Maybe its the heavy engine use plus higher electrical load. Like drag racing all the time while your subs are hitting hard.
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Old 07-20-2011, 07:01 PM   #14
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i dont know man niether me or my any of my friends gt's have ever had any alternator problems, but i have a couple friends who their lives revolve around crown vic police interceptors lol and they have a quite a few alternator problems.
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Old 07-21-2011, 01:01 AM   #15
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Odd.
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