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#2296648 - 05/14/11 09:02 PM 2005 Police interceptor alternator??
Delgado Offline
Member

Registered: 09/10/10
Posts: 277
Loc: Missouri
I have a 2005 Police interceptor. I need a new alternator. What does the car originally have on it amp wise? And also can i use any of the amps from 120 to 200 since im not powering anything but the car? And Will any of the amps fit. Any help please and recommendations are welcomed

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#2296691 - 05/14/11 10:24 PM Re: 2005 Police interceptor alternator?? [Re: Delgado]
Stick Offline
Climber

Registered: 11/29/07
Posts: 960
Loc: Oshawa Ontario Canada
Your Car came with a 200 amp clutched pulley alternator to prevent belt slippage and to carry all electrical load.You could put a 135amp minimum on it but you would lose the Clutched pulley.
_________________________
2010 CVPI Black ]Jmod/rear bumper tuck /Head light harness upgrade

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#2296711 - 05/14/11 11:29 PM Re: 2005 Police interceptor alternator?? [Re: Delgado]
Delgado Offline
Member

Registered: 09/10/10
Posts: 277
Loc: Missouri
So I have to go with the 500$ alternator then even though I have no police equipment like lights, radio, radar,etc.?

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#2296737 - 05/15/11 12:14 AM Re: 2005 Police interceptor alternator?? [Re: Delgado]
Unixadm Offline
Member

Registered: 10/14/02
Posts: 179
Loc: Sacramento, CA
Find a used but tested one on eBay. I bought a nearly brand new 2005 CVPI 200A alternator for $40 + $20 for shipping a few years back and installed it on my 2003 CVPI at the time. There are plenty up there for around $50.
_________________________
UNIXADM - 2007 CVPI Street and Appearance Package, Smokestone Metallic / Dark Charcoal, 100k (337 idle hours)

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#2296824 - 05/15/11 06:44 AM Re: 2005 Police interceptor alternator?? [Re: Delgado]
GaryinVT Offline
Over the Hill

Registered: 09/24/06
Posts: 3176
Loc:
I put a standard pre-04 alternator on my 2004 P71 and it worked fine. It was a "remanufactured in the USA" unit from Advance Auto Parts, and cost around $200. 2004 was the first year of the clutched pulley, which I was happy to get rid of. When I let off the gas after a full throttle acceleration it made a loud whirring noise, which I was told here is normal. Pre-04 with a Goodyear Gatorback belt is the way to go IMO.
_________________________

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#2296840 - 05/15/11 08:03 AM Re: 2005 Police interceptor alternator?? [Re: Delgado]
gord_bolton Offline
Over the Hill

Registered: 05/06/02
Posts: 4691
Loc: Saskatoon, Saskatchewan

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#2296956 - 05/15/11 12:33 PM Re: 2005 Police interceptor alternator?? [Re: Delgado]
Weast Offline
n00b

Registered: 11/11/10
Posts: 46
Loc: Sellersburg, Indiana USA
The clutch on the front isn't necessary unless your needing all 200 amps. The explanation I found through Alldata:

"when the engine is driving an alternator at a given speed and the automobile's transmission is in a given gear. If the transmission upshifts to a higher gear, the engine speed decreases abruptly. As a result, the V-belt driving the alternator abruptly decreases in speed as well. However, typical alternator rotors have considerable rotational inertia, which opposes the V-belt's abrupt decrease in speed. As a result, the alternator actually attempts to drive the V-belt. However, the interface between the V-belt and the sheave frequently cannot carry the resultant torque, which can be quite large. As a result, the V-belt may slip on the sheave, causing an audible and annoying squeal. An overrunning clutch, which would prevent the alternator from attempting to drive the V-belt in the manner just described, would prevent the squeal."

Here is my thought, your not running all the electrical items needed for 200 amps. In my years of automotive service, unless the belt has significant age to it belt squeal is typically not an issue. The only thing you'll notice going back in amp rating is case size. Ford usually has an alternator case size of 5 1/4 on the lower amperage alternators and 5 5/8 on the high amperage case. My recommendation is for the sake of saving money is find an older alternator from a 99 ford e350 with Ambulance package which will have the high amperage and bigger case but a standard pulley. OR go with the lower amperage alternator. Hope this helps.

Jon
_________________________
1999 Ford Crown Victoria Police Interceptor
220,000 miles

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#2410780 - 11/21/11 11:19 AM Re: 2005 Police interceptor alternator?? [Re: Delgado]
maroonlagoon Offline
Member

Registered: 01/24/10
Posts: 198
Loc: allover
would a 200 amp work on a 2005 passenger vic?
_________________________

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