Hey guys I’m new here and couldn’t find a thread about this issue. I have a 05 coupe rev up it has a manual transmission and 125k miles. The car makes this rattle noise every time I cold start it. And lately I can hear it a couple seconds when I let off the accelerator at around 3k rpm. The noise seems to be coming from the engine bae. I haven’t found any helpful information on this just a bunch of other people with the same issue and no fix.

well i replaced the timing chain and tensioner cuz I heard that could be it. However the noise is still there and it’s been happening more often. I checked all my pulleys too and they are still good I haven’t checked the heat shield and my clutch is slipping I’m planning on replacing it soon. Idk if maybe the timing kit that i bought was just too cheap. I payed 75 for it but i just seen one that was 400. I might just try and replacing it for the 400 dollar one. I don’t think it’s the clutch cuz the noise is coming from the front of the engine but I could be wrong. I just hope I don’t run into a minor issue with the actual engine since money is short right now and that’s my only car

I changed my oil from 5w 30 to 10w 30 and it stopped the rattling while driving. Now it just rattles when I start it. Ima go ahead and get a oem timing kit maybe that will do it.