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Thread: Ground plug?

  1. #1
    FEP Senior Member BlackMamba's Avatar
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    Default Ground plug?

    Does anyone know where this ground strap bolts on to?
    The car is a 86 GT EFI Mustang 5 speed.
    I took the engine out to get it rebuilt and dont remember where it goes.

    Current Cars:
    1979 Mustang Ghia Coupe 5.0 3J Bright Blue
    1984 GT T top 306 5 speed "Black Mamba"
    1986 Saleen Black with Silver Stripes 86#009
    1986 Mustang GT Medium Canyon Red 5 speed 5.0
    1999 Mustang GT Convertible 35th anniversary 69K miles.
    2002 Nissan Maxima 6 Speed "Daily Driver"
    2009 Corvette 6 speed LS3

    1998 Cobra 71k miles Canary Yellow "Nana" SOLD

  2. #2
    FEP Power Member tonysilver82's Avatar
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    Default

    bolt to the back of the cylinder head

  3. #3
    FEP Senior Member BlackMamba's Avatar
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    Default

    There is already one there that goes to the firewall. Is there suppose to be two?
    Current Cars:
    1979 Mustang Ghia Coupe 5.0 3J Bright Blue
    1984 GT T top 306 5 speed "Black Mamba"
    1986 Saleen Black with Silver Stripes 86#009
    1986 Mustang GT Medium Canyon Red 5 speed 5.0
    1999 Mustang GT Convertible 35th anniversary 69K miles.
    2002 Nissan Maxima 6 Speed "Daily Driver"
    2009 Corvette 6 speed LS3

    1998 Cobra 71k miles Canary Yellow "Nana" SOLD

  4. #4
    FEP Super Member mustangxtreme's Avatar
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    Feb 2009
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    Snohomish, Wa
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    4,021

    Default

    I bet that is the O2 ground wire. Bolt it to the back of the head.
    Dave

    If common sense was common wouldn't it just be sense?

    1983 Capri L T top 5.0 efi aod
    1983 Capri RS Turbo
    1981 Black Magic 400 c6
    93 F-250 351 5sp 4x4

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