Where did you insert the pipe that you blew into? I have a feeling i may have a boost leak along with a suspected rod knock. When engine is switched on and idling i can hear a slight hissing from the engine bay but cannot locate where the sound is coming from due the the lound engine sound. Also engine sounds like a rod knock as the knock sound moves along with revvs too.
Where did you insert the pipe that you blew into? I have a feeling i may have a boost leak along with a suspected rod knock. When engine is switched on and idling i can hear a slight hissing from the engine bay but cannot locate where the sound is coming from due the the lound engine sound. Also engine sounds like a rod knock as the knock sound moves along with revvs too.
Into the other side of the intercooler.