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  1. #1
    Join Date
    Jul 2014
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    Jacksonville, FL
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    Default Name that part

    So I have these random parts on the driver's side of my engine bay that aren't connected to anything. Can anyone identify what these are? Here are the first 2:

    Note: I took this picture after reconnecting the wire to this part, but I'm not sure what its function is. The wire was just dangling below it:

    IMG_5519.jpg

    Then this:

    IMG_5460.jpg

    Thoughts?

    I'll post some more later this afternoon
    1988 K10 Suburban. 6.5L NA Goodwrench Engine: 506 block cast on August 12, 1996. Heavy Duty built 700R4. Full-floating 14 bolt rear axle. 3/4ton 10 bolt front. Brand new 305/75R16 Procomp AT Sport tires on brand new 16x8 steel wheels.

  2. #2
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    Default

    I shall suggest naming them Fred and Ginger…

    Seriously, though… Second one looks like a relay. From your signature, I’m taking that the 6.5TD was swapped in. What was the original engine - a 6.2? Or something else?
    '94 GMC 6.5TD K1500 4L80E 2-Door Yukon SLE 221K
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  3. #3
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    Default

    Quote Originally Posted by trbankii View Post
    I shall suggest naming them Fred and Ginger…

    Seriously, though… Second one looks like a relay. From your signature, I’m taking that the 6.5TD was swapped in. What was the original engine - a 6.2? Or something else?
    Correct, it was originally a 6.2.
    1988 K10 Suburban. 6.5L NA Goodwrench Engine: 506 block cast on August 12, 1996. Heavy Duty built 700R4. Full-floating 14 bolt rear axle. 3/4ton 10 bolt front. Brand new 305/75R16 Procomp AT Sport tires on brand new 16x8 steel wheels.

  4. #4
    Join Date
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    Default

    Top piccy is the wiper motor

    Bottom piccy is definitely a relay ????
    Exactly what it controls/controlled is the Question.

    Figure out what does not work and you may be able to solve the mystery

    After sifting through the factory electrical schematic the relay may be the AC compressor relay.
    The AC pump is on the drivers side of the truck.

    Normally the AC relays are mounted near the evaporator case on the RH side firewall.

    88 was a transition year when the Burbs and crew cab trucks remained the square body and the GMT400 series was introduced and lotsa stuff changed.

    The relay also might be for the cruise control module.

    Later electrical manual/schematics had pages dedicated to showing the location of various components on a diagram of the truck, but the early books just show ladder type schematics.
    Last edited by Robyn; 06-09-2017 at 06:59.
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  5. #5
    Join Date
    Feb 2003
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    Grand Rapids MN 55744
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    Default

    Howdy
    Wiper motor and what appears to be an aftermarket relay(judging from the screws)
    The relay could have been used for anything.
    It may have had a single plug but most likely had three wires with spade connectors.
    If you have an after market accessory that is not working then that would be suspect. Whatever it is for, from the looks of the terminals, it hasnt been hooked up in awhile....
    Hope this helps
    1996 Chvy 3500 CCDWLB 6.5 Heathed, NO vac, marine injctrs, ARB bumper, BIG pipe, 3" lift, bright lights, bypass oil system.
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  6. #6
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    Jacksonville, FL
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    Default

    Awesome thank you all. I think it's interesting that the first item is the wiper motor, because the wipers were working prior to me reconnecting the wiring to the motor! But then again, I have only put about 1,300 miles on the truck since I bought it back in September 2016 (this includes driving it up from South Florida), so I haven't really given it a hard rain test yet.

    There is this other little gizmo, attached to some wires, that is laying loose on my inner driver's fender, somewhat near/below that relay. I will snap a pic of it this afternoon and post it to see what y'all think.
    1988 K10 Suburban. 6.5L NA Goodwrench Engine: 506 block cast on August 12, 1996. Heavy Duty built 700R4. Full-floating 14 bolt rear axle. 3/4ton 10 bolt front. Brand new 305/75R16 Procomp AT Sport tires on brand new 16x8 steel wheels.

  7. #7
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    Default

    Quote Originally Posted by Dvldog8793 View Post
    ...and what appears to be an aftermarket relay...
    If it was a relay I'd expect it to have (at least) 4 connections.
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

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