Recent content by EricC

  1. EricC

    Misfiring 454, 1990 non-HEI

    I am not, but you haven't checked spark at the plugs yet so it's hard to say anything for sure. If you don't have a spark tester, get a screwdriver or an old spark plug and check it the old fashioned way. The way where you don't get bit is preferable. There are probably two sets of timing marks...
  2. EricC

    Misfiring 454, 1990 non-HEI

    Backfiring will be caused by improper timing or insufficient fuel pressure. Going to need better than a best guess.
  3. EricC

    Misfiring 454, 1990 non-HEI

  4. EricC

    Misfiring 454, 1990 non-HEI

    Have you verified lack of spark at the plugs, and have you checked fuel pressure? What did your old distributor gear look like? Did the new distributor come with a new ICM and pickup coil? What do the plugs look like? Plug wires? How did you set the timing after replacing the distributor?
  5. EricC

    Random air conditioning blows hot air

    I read the same thing. Looks like clutch coils were the cause. Most people just removed a shim and carried on.
  6. EricC

    Random air conditioning blows hot air

    Did you hook up your gauges and see what your static line pressure is? Most systems require ~50 psi before the clutch will energize.
  7. EricC

    pictures from work

  8. EricC

    Random air conditioning blows hot air

    So we're clear, you've called 4 dealerships to ask if this update has been performed on your GM vehicle and none of them would look it up and give you a straight answer? If that's the case, did you ask to speak to the service manager? The general manager?
  9. EricC

    2003 trailblazer trans not shifting corectly and reverse not working

    Glad to hear it, and well done.
  10. EricC

    wire colors

    My boss screamed when I ordered multiple spools of wire in every color and usable gauge available to stock my service truck and shop. He screamed, but he approved it. It prevents just exactly what you're talking about Dan. That and new or younger guys just grabbing anything to make a quick...
  11. EricC

    pictures from work

  12. EricC

    2003 trailblazer trans not shifting corectly and reverse not working

    No, reverse is not electronically controlled. It Is Purely Mechanical..
  13. EricC

    2003 trailblazer trans not shifting corectly and reverse not working

    The OP's Trailblazer has no reverse. Reverse doesn't use electrical inputs in a 4L60E, it's all mechanical.
  14. EricC

    2003 trailblazer trans not shifting corectly and reverse not working

    Make sure you flush the cooler and lines. I'll assume you're replacing the torque converter? Most specialty tools you can fabricate from common materials. You may have to pick up or borrow a couple of things.
  15. EricC

    2003 trailblazer trans not shifting corectly and reverse not working

    Not terribly, but you'll want to be doing a rebuild while you're in there. Metal from the splines will be throughout the trans.