Missing something! Help me identify it please.

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by maddoghoek777, May 1, 2007.

  1. maddoghoek777

    maddoghoek777 New Member

    93 Suburban c1500
    5.7L 350
    4 Speed OD transmission


    While getting my coolant issue all fixed up, turns out it was a hose coming loose, I was looking around under the hood and noticed I am missing a part. LEt me describe where it is.

    Looking at the engine head on, on the right side where the oil refill cap is located. Now, just behind the (going toward the cabin) there is a "hole" where it looks like some type of cap or plug would go.

    Does anyone have any guesses as to what may go there? Right now there is just this hole sitting there, while I am no expert on engines I am sure there should be something plugging this thing.

    I am also getting a lot of hesitation or "missing" when I accelerate. When I get up to freeway speed (65+) it gets pretty bad. I am thinking it is just wires, plugs, etc... Do you think the hole I described earlier could have something to do with this?

    I have checked all fluids and they are full. There are no leaks or anything of that sort.

  2. unplugged

    unplugged Epic Member 5+ Years 1000 Posts

    See the pic

    Here is a pic of the 350 in my 93 K1500, what 'hole' are you describing?

    Attached Files:

  3. TrailLeadr

    TrailLeadr Epic Member 5+ Years 1000 Posts

    Sounds like a breather hole, should have a tube going to the TB base.
  4. tbplus10

    tbplus10 Epic Member Staff Member 5+ Years 5000 Posts Platinum Contributor


    And a good tune-up with intake cleaning should fix the stumbling issues.
  5. maddoghoek77

    maddoghoek77 New Member

    The one with the tube coming out of it in the back there.

  6. maddoghoek77

    maddoghoek77 New Member

    I will take it in for a tune up ASAP. As far as the breather goes, how much are they and is it doing anything to the engine if it is not there?

    Thanks everyone for the replies.

  7. maddoghoek77

    maddoghoek77 New Member

    After some checking around for prices... I have decided to go ahead and change out the plugs and wires myself. I have done it on other cars I have owned and after looking at it, it looks to be pretty easy on a burban (lotta room in there).

    I am also going to do the distributor cap, I am wondering if there are any "traps" to watch out for as I haven't changed one of those before. Will I have to adjust timing or anything? If so, how?

    Thanks so much for the help!
  8. tbplus10

    tbplus10 Epic Member Staff Member 5+ Years 5000 Posts Platinum Contributor

    Cap and wires are easy.
    With the wires replace one wire at a time.
    Cap and rotor is remove and replace. Almost impossible to put on wrong. The timing should be good but never hurts to check at tune-up time (after the wire,plugs, cap, and rotor change), should be timing specs on the underside of the hood and you'll need a timing light to do the check a tachometer is optional but helpful. The underhood sticker should tell you about removing a vacuum line and ensuring the idle RPM is somewhere around 750.
    You might be able to get the Tach and Timing light from AutoZones tool loaner progam if you dont have them. They also include very explicit instructions for use.
  9. maddoghoek777

    maddoghoek777 New Member

    Thanks!!! Thats what I needed!


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