I have a miss 1994 850 volvo motor shakes?

Question

I have a miss, I changed the rotor,wire,cap,spark plugs etc.As i was looking and filling around my engine i followed a little tiny clear hose that went into a black real small tube. Right where the fuel injector are. any way the black tub like piece was cracked. could that be my problem? It felt like air was sucking in. that you very much. please help

Answer 1

replace the black tube like piece, its sounds like a vacuum tube.