So I did the motor flush today and will be doing another tomorrow. this time will just be used oil out and fresh oil and filter.
sludge came out with the first change looked like sand in the filter the first two times and the oil drained very slowly out of the oil filter housing 2 gallons of oil was used for the flush.
while on the ramps when I started it back up after the flush the random noise started. this noise wasn't heard today when I went into town to get more filters 8 miles round trip let the engine warm up before leaving for town.
in the video the noise seems to come from everywhere but it sounds loudest to me under the x5 near the exhaust it almost sounds like a loose heat shield or something it sounds like the noise is coming from the cat or something and the rattling clunk when I shut off the engine.
Please watch the video and let me know what you think. yes there is a check engine light on but it is 30 miles to the nearest place the has a code reader that would check it without charging me.
Thanks guys
https://youtu.be/Lq4dZSDkpbQ