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Discussion in 'The Garage' started by Chevy305, Apr 23, 2006.

  1. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    Yeah so I found these random connectors hanging off the wiring harness that goes down to the starter soleniod. I can't figure out what they are and more importantly, do I have to have them dangling there like a pair of hairy testicles?

    WTF.jpg

    WTF.jpg
     
  2. sweetk30

    sweetk30 professional hooker Premium Member

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    pic to fuzzy to tell on my end.
     
  3. tarussell

    tarussell 1/2 ton status

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    Can't really tell from the fuzzy pic but the one wire could be the terminal for the knock sensor .
     
    Last edited: Apr 24, 2006
  4. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    I don't know about a knock sensor because my engine is a 83 305 out of a firebird.

    Sorry about the fuzzy, I took the picture with my cell phone. I will get better pics soon.
     
  5. neverendingproject

    neverendingproject 1/2 ton status

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    Knock sensors only have one wire going to them. Im thinking something like the wires that goes to the rear window????
     
  6. neverendingproject

    neverendingproject 1/2 ton status

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    Maybe even heater wiring connetors
     
  7. JEBSR

    JEBSR 1/2 ton status

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    It is fuzzy but it looks like 1 plug with 1 wire and another plug with multiple wires. Look behind the intake on the back of the block and see if you have the dual sending unit hookup for oil pressure. One of mine has that setup and the plugs look like the setup you have there
     
  8. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    Maybe, the previous owner installed a mechanical oil pressure gauge and put it inplace of the oil warning light. My truck came from the factory with the warning lights, no gauges, so that may be the sending unit for it.
     
  9. dyeager535

    dyeager535 1 ton status Premium Member

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    If I'm not mistaken, all the gas Chev motors '81-up in cars got knock sensors, so that one wire could be.

    Those look to be some pretty beefy wires on the other plug though, have no idea what would need wires like that so far down on the block.
     
  10. RaisedK5

    RaisedK5 1/2 ton status

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    Does your blower motor work? Cause that single wire/boot looks like the big blower lead and the rest of that may be the blower relay plug thats goes to the relay near the blower.
     
  11. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    Yeah the blower works perfectly fine. I have decent heat.
     
  12. RaisedK5

    RaisedK5 1/2 ton status

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    This is a 74 right??I'll look around my 75 and see if i see anything like it.
     
  13. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    Well technically registered as a 74, the whole frame, chassi and front clip are from 85. But if you would look anyway, that would be great!
     
  14. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    *Update*

    So, I might have figured out what one of the those randome connectors are.

    You guys were right, the smaller one with one wire is a knock sensor because I realised that the engine actually used to be that crossfire fuel injection so I think it was a left over from when the PO switched on a carb.

    I have a question about the X-fire injection, do they use mechanical or electrical fuel pumps?

    Also where is the knock sensor lacated on the block?
     
  15. dyeager535

    dyeager535 1 ton status Premium Member

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    x-fire was electric fuel pumps afaik, it was a true electronic injection system.

    Knock sensor is over the starter, threads into the drain plug in the block.
     
  16. Russell

    Russell LB7 Tahoe Status Premium Member GMOTM Winner

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    Looks to me like one is an electrical oil pressure sending unit wire, and the other is a oil pressure switch for an electric choke, or fuel pump backup circuit.

    Both components would be right beside eachother, coming off the oil pressure line at the rear of the intake.
     
  17. blackblazer717

    blackblazer717 1/2 ton status

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    ive also sceen the knock sensor above the oil filter, and i believe the connector is round not square, and
    chevy305, you gotta start telling the world about your truck, as like its about 10 different years put together....lol
    LUKE
    p.s. you still have your sway bar in.........
     
  18. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    Yeah when I bought the truck I was under the impression that it was only a 85 and a 74 together. :rolleyes:

    Yup sway bar is still there, I will keep it in because I don't like body roll.
     

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