Recent content by pjt087

  1. pjt087

    Low speed knocking, worse with a full tank of gas

    Thanks for the tip, the charcoal looks clean without any apparent fuel residue- good idea though.
  2. pjt087

    Low speed knocking, worse with a full tank of gas

    From what I can gather-- the truck is actually running rich despite the error code, the CO emissions are 4x the limit. My thoughts pointed to the cat as well, could be a combination of both the fuel pump and cat?
  3. pjt087

    Low speed knocking, worse with a full tank of gas

    Thanks, the O2 sensor is new, but I had had a feeling that there may be a timing issue.
  4. pjt087

    Low speed knocking, worse with a full tank of gas

    I just bought a '95 4x4 pickup V6 edition, drove it down from Riverside, CA to San Diego no problem. The following days I experienced some pretty serious "chug" or knocking- especially in low gear. Have not been able to pass CA Smog- labelled as a "Gross Polluter". Replaced an after market cool...
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