Weird noise

Hi all,

I have been subject to a weird noise. Usually seems to occur when the car is warmed up but can be random. Seems to be coming from behind the back of the engine I have used a bar to listen to the alternator plenum head and block and it just seems to be resonating from down below the plenum. It sounds a bit like a cow bell or heat shield revirbirating against something.

Its the higher pitch noise its hard to pick up so much on the video, its a quiet engine on this one but these phones pick up everything. See what people think?! If you turn it off and on a few times it goes.

Hard to tell on video it's not further down. downpipe rattling against something ?

Yeah its weird I thought it might be the pipe that goes down behind it as the mount is not bolted up to the inlet its just loose. It has a stock downpipe so i know the heatshield around it is not in the best nick!

Start the car and jack it it look from underneath

Only seems to do it randomly sometimes every time I get under or look it stops maybe im just been silly lol it has a scorpion exhaust so its a lot quieter than im used to!!