Hey I am Jamie, fresh to this forum
I have a 2002 Duramax (no computer tune) with brand new injectors, and theres a quiet ticking coming from the back of the engine on the passenger side. It's fairly quiet. It sounds like someone's shaking a shaker cup in the engine bay. Can hear it under load and at idle everytime you let off the gas. It kinda sounds like a 4 cylinder exuahst leak

Just wondering if it's something to look out for and if I'd notice something weird on my edge insight gauge screen thingy

 

how many miles are on the engine?

 

There is 232,000km on engine and chassis. 150km on injectors