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Upper and Lower Intake. See! Interpret!

Discussion in 'Stock 1995 - 2001 Explorers' started by mbruffey, June 18, 2011.

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    1. mbruffey

      mbruffey Active Member

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      Got it apart. Anything look amiss? Interpretations, comments, remarks welcomed!

      Mark
       

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      Last edited: June 26, 2011
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    3. mbruffey

      mbruffey Active Member

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      Bump. Became member and put pics inline. Mark
       
    4. Joe Dirt

      Joe Dirt Explorer Addict

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      Are you having issues with it? I don't see anything glaringly out of place, but I'm not sure what I'm looking for...
       
    5. mbruffey

      mbruffey Active Member

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      Just a "miss" that can't be linked to any specific cylinder (no specific codes), a little-faster-than-normal idle warm, an occasional start/stall/start/stall, and pinging on hard acceleration. Thought I would eliminate the common causes of vacuum leaks first. A couple of the bolts were hardly finger-tight on the upper and lower intake manifolds and the upper gasket seemed a bit oily on both sides (splotches). I also discovered, after I got into it, that there was no screen beneath the PCV valve and that valve, even though I had changed it less than 20K miles ago, was pretty sticky. I was surprised by that.

      Some intake ports seem darker than others and there are some orangy splotches under the lower. Splotches could be from drip off the plenum cooler hoses when I took it off, but I did not notice if I actually dripped in there when I removed it. I'm not nearly enough of an expert to interpret the pictures. I'm guessing it's pretty normal, but why not ask. There are some really smart/knowledgeable participants on this board.

      Mark
       

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