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Thread: 2005 lx sport

  1. #1
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    2005 lx sport

    Any marauder members have a 2005 vic lx sport?


    If so, please post your voltage set point for your alternator/battery.
    I believe im having some issues or maybe its just my set point from factory. Never noticed this until now but my voltage set point is around 13.5 at start up and drops down to 12.9-13.1.

  2. #2
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    Crown Victoria sport is also pulse width modulation from the PCM?
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  3. #3
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    I believe so. Its control by the PCM.


    I would post this in CVN.net but that site been down for a while now. I am not sure if there is a difference with civilian and p71 crown vics. I do know that p71 have a higher voltage set at around 14.1-14.5


    I have under drive pulleys on mine but kept alternator pulley stock. Ive raised RPM with tune from marty. I have a 200 amp p71 alternator. Ive replaced battery and alternator just to confirm and rule those out. Is my set point really this low from factory?

  4. #4
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    Smaller crank pulley will still turn the alt slower...

    I would say the aftermarket pulley system is why your alt is lower, wouldn't the aftermarket alt pulley be a lot smaller?
    The twins2.3 whipple/aluminatorVortech V-2 lots of goodies

    Current marauders
    04 DTR totaled JUST NOW starting to part out 7-21-2021 https://youtu.be/REUxjP1BVpg

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  5. #5
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    I have a stock p71 200 amp alternator. Pulley is good. So your saying the the steeda water pump and crank pulley might be my issue?

  6. #6
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    When you do underdrive pullies I would assume you would also install the smaller alternator pulley to speed it up since the balancer pulley is spinning slower.
    I have a buddy 10 minutes away with a 2005 cv dark grey sport. I could check his voltage, how are you checking yours?
    The twins2.3 whipple/aluminatorVortech V-2 lots of goodies

    Current marauders
    04 DTR totaled JUST NOW starting to part out 7-21-2021 https://youtu.be/REUxjP1BVpg

    04 Silver Birch Dark Charcoal Hardtop Whipple Supercharger
    04 Silver Birch Dark Charcoal Hardtop V2 Supercharger
    04 Silver Birch Dark Charcoal Converted
    03 DBP Light Flint #122
    03 DBP Dark Charcoal #232
    03 Silver Birch 300b Light Flint Going to fix er up
    03 Black 300a
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    04 Heaton Swapped DTR
    Joe's Wrecked DTR rebuild thread

  7. #7
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    voltmeter and aftermarket gauges. If you can, please do verify this for me.

  8. #8
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    Any luck with this buddy?

    So surprisingly this morning i started the car and volt read 13.5. Then dropped to 13.2 while driving to work it started raising to 13.9 and stud there. After work turned it on and was at 13.3. While driving home went down to 13.1 and stayed at 13.1. Been driving around town handling bussiness and its stuck on 13.1. So weired.

  9. #9
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    Mine hovers between 13.3-13.7 while idling, and driving I’m around 13.2. Verified bY SCT tuner
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  10. #10
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    My 05 sport is right at 13.6 most of the time
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  11. #11
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    Quote Originally Posted by Seneca View Post
    My 05 sport is right at 13.6 most of the time
    Do you happen to know what is it at start up. 13.6 is not bad. Problem im having is that its not steady at that.


    This morning at 1st start up and 79 degrees outside it was at 13.2. while driving around town for 5 mins before getting on the highway, dropped to 13. about 10 mins on the highway at 75mph, slowly makes it way up to 13.9. by the time I got to work, it was at 13.1-13.2.


    Ive gone around wires and connects 5-6 times. Ive replaced battery and alternator. Is it really my steeda UD doing this?

  12. #12
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    First time I will see the car is tonight
    The twins2.3 whipple/aluminatorVortech V-2 lots of goodies

    Current marauders
    04 DTR totaled JUST NOW starting to part out 7-21-2021 https://youtu.be/REUxjP1BVpg

    04 Silver Birch Dark Charcoal Hardtop Whipple Supercharger
    04 Silver Birch Dark Charcoal Hardtop V2 Supercharger
    04 Silver Birch Dark Charcoal Converted
    03 DBP Light Flint #122
    03 DBP Dark Charcoal #232
    03 Silver Birch 300b Light Flint Going to fix er up
    03 Black 300a
    04 Silver Birch Dark Charcoal moonroof in the works

    04 Heaton Swapped DTR
    Joe's Wrecked DTR rebuild thread

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