Recent content by Johnbirch

  1. J

    98 K1500 5.7 metal squealing

    So just an update. Out of desperation I changed the intake manifold gasket, and my noise went away.
  2. J

    98 K1500 5.7 metal squealing

    Yes
  3. J

    98 K1500 5.7 metal squealing

    Yes, there is decent vacuum on the air intake side. I just replaced the PCV valve as well, with no difference.
  4. J

    98 K1500 5.7 metal squealing

    The passenger side valve cover has a connection to the air intake. It is in between the air filter and the throttle body.
  5. J

    98 K1500 5.7 metal squealing

    I think you are right about a vacuum issue. If I pull the vacuum hose with the PCV off, the squealing goes away. Maybe I did a mis-routing when I did the engine swap. Where can I find a good hose routing diagram?
  6. J

    98 K1500 5.7 metal squealing

    I pulled the cap off the Distributer and there is up and down play. Probably around .03 to .05.
  7. J

    98 K1500 5.7 metal squealing

    The only place a stethoscope gave me any noise was on the bottom of the oil pan. Is it possible the oil pump makes a high squealing sound?
  8. J

    98 K1500 5.7 metal squealing

    I’ve got a 98 Chevy K1500 that recently seized my 305 engine. I replaced it with a used 350. The engine runs well. Good oil pressure and good coolant temperatures. Transmission shifts well. My problem is, when it warms up, I start getting a squealing noise. It sounds like metal on metal...
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