LPG trouble

Friends, there is a sound coming from LPG connection.

[QUOTE = Hmd16] Friends sound from LPG connection, so why are they on the top of the engine [/ QUOTE] they usually install the injectors at the top of the engine if the sound you say is like cit cit.cit, the injector operating sound is something normal

just like snap, if our friend is always coming from lpg injectors. normal so that sound