I will admit to being a third-generation mechanic and as such have trouble explaining things to novices.
Sometimes things that seem so simple to me dumb found the most educated man.
So to the novice and experienced I offer this bit of advice concerning that large chunk of iron sitting down in a dark hole.
When a problem arises that makes you want to scratch a hole in your hair, step back, relax, grab a glass of your favorite beverage and watch this video.
YouTube - Chrysler Turbo Encabulator