96 na 2+2 with about 215xxxkm My z has been of the road for a couple months And now it makes a metallic rattle mostly notable in neutral when rpm is coming down after revving engine. What could it be? while it was off the road I did exhaust and intake gaskets, coolant bypass, egr bypass, replaced some old hoses, oil and filter, Pcv delete and replaced the down pipes and cats with oem pipes from a parts car as the old ones were hole riddled. I have transmission oil waiting to be put in. Video of the sound ignore my displeased mum yelling at the end haha
sounds like something in the exhaust system, could be the cats falling apart. I flattened the bottom of one cat on a speed hump on my car, it made a similar noise until what ever it was burnt up or was ejected elsewhere.
