random misfire

  1. N

    No spark at two cylinders

    Hi guys, 1996 Yukon 5.7 liter Vortec V8 I have P0300 code: Random Misfire Check all the wires and find two cylinders are getting no spark. (cylinders 2 & 8) Spark Plugs: New Checked the wires with ohm meter: Fine (but replaced with a new set anyway to be safe) Checked the distributor cap (again...
  2. L

    2003 GMC Yukon XL 1500

    I am wondering if anybody has any suggestions for me. Here is the story... (a little back ground info, I don't know if this is important or not) In May of 2012, we were going on a little road trip. The car started hesitating quite a bit while on the interstate (going 76 mph). The check engine...