Thanks for all the input - I've found the main culprit:
After checking the cam lobes and seeing no damage, we went and got a replacement rocker arm. Put it in and the main misfire issue is gone. We're still having an intermittent misfire, but the longer we've driven it, the less frequent it...
Hello all - I'm new here, and looking to see if I can get other input from folks who know a lot more about vehicles than I do. I'm an IT Systems Engineer by trade, and only started working on vehicles with our 2005 Toyota Sequoia and now our 2013 Expedition EL. First things first, a...
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