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84-up speedos

Discussion in 'The Garage' started by R72K5, Mar 19, 2004.

  1. R72K5

    R72K5 Banned

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    ok so anyone know whats up with the wires coming out of back of the speedos about 84 and up justlike this one ?

    the 86 K5 305 700r4 208 out here had oen of these speedos,
    otherwise the last one i saw i took from an '84 C20 but i dont remember what engine and tranny it had in it, it was v8 and auto is all i remember.

    thanks
     
  2. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    i think it is the vss for cruise

    both my 83 k10 has it /forums/images/graemlins/dunno.gif
     
  3. dyeager535

    dyeager535 1 ton status Premium Member

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    VSS wires is correct.

    What year did they go from transducer cruise control to electronic? My '83 was electronic cruise (w/VSS of course) as well.
     
  4. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    My 83 also. Could of been 82 with the 700r4 introduction /forums/images/graemlins/thinking.gif
     
  5. R72K5

    R72K5 Banned

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    ok so its for cruise, ok,

    wires come from tranny then ? hmm ill have to look under and see how it can have electric with cable on tranny, humm.
    interesting

    thanks
     
  6. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    the only wires from the tranny are gonna be for lockup. the reason they put the vss in the speedo is so they didn't have to put it on the tranny.
     
  7. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    It is definately VSS, if you don't hook it up your truck may not idle to well after you come to a stop. The VSS gives a signal to the computer to tell the vehicle speed and then allows the IAC motor to do its job properly.
     

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