Mazda 3 Engine Rattle

[hoogie514]

OK, 2006 3 GX 60,000k auto. While driving between 65-75k and the transmission shifts into last gear the engine makes a rattling noise, approx 1600-2000 rpm. It never useed to do this, possible labouring but thinking more like timing chain or intake. Any thoughts?

[Videcak]

Around that range, the engine it being lugged, causing vibrations. The first thing I would check would be any brackets holding the exhaust closest to the engine. If thats not it, you are going to have to do some hardcore listening to guess where it is.