I have a suspicion that my 4.7 Dodge engine may have some gunk/sludge/debris/whatever in the oil pickup tube. It may not, but I'm taking no chances. The pan is a pain to remove, especially without a lift and working in the gravel driveway. So ideally I'd like to attack this with the pan ON. I'm going to borrow an inspection camera and have a peek at what's inside the oil pan this weekend. If all looks okay, then that's that. If not though... I need a plan to clean what I can. I've thought of a few different ideas, I'll let the experienced wrenchers weigh in on what might be best for me. Yes, I know pulling the pan is best - but that just isn't an option right now. This is pan on. Idea 1 - Insert a small toothbrush into the drain plug hole and attempt to scrub whatever is on the screen off. Idea 2 - Insert the little red spray straw end of a can of brake cleaner into the drain plug hole, and spray the screen with it. Idea 3 - Drain the oil, pour a gallon of kerosene in the oil fill, and let it sit overnight / a couple days. Drain, flush with cheap oil, refill. Idea 4 - Drain the oil, pour a gallon of kerosene in the oil fill, disable the ignition, and crank the engine in 2 or 3 second bursts. Let sit overnight, drain, flush, refill. I'll go ahead and mention here, that I am in the process of doing a Seafoam flush. I was about a quart low on oil, so I dumped an entire can of Seafoam down the oil fill. Started up, let it run about a minute, and shut back off. Haven't started since then. Thoughts?