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whats thi hose do?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by FatBoyBlazer, Apr 20, 2003.

  1. FatBoyBlazer

    FatBoyBlazer 1/2 ton status

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    i've got this hose tat goes from under the driver side foot well to under the hood but i don't know what it connests to...its seems like since i changed my motor my truck runs like poo... its a 91 with a 5.7 tbi btw /forums/images/graemlins/confused.gif
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

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    How about cruise control?
     
  3. FatBoyBlazer

    FatBoyBlazer 1/2 ton status

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    damn i forgot that i took it out when i did the motor
    woould that cause a vacuumm leak nd make me loose power?
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    Since there should be a fitting on the engine hooked up to manifold vacuum, yeah, unless you plugged that, you have a vacuum leak, which leads to all sorts of problems.
     

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