dont know what it is and what its for

[Old Skool Rider]

hey i need help today i was looking at my engine and i saw this hose line thats connected to the trotle body to the engile were the spark plugs go i took it of the engile to see it and it look'd like it sucks air or something so i put it back on when i moved it to see if i put it back on correct it like snapt off one peace is on the engine and the other one comes off i dont know if i broke it i was able to put it back but dont know if i broke it i was able to turn it on and run it if some one knows whats it for and if i busted it thanks in advance for who ever can help me out on this

[904drACCORDMANG]

Sounds like the pcv valve they cost like $2 new so if your unsure its not a waste to buy a new one

If it broke off into the valve cover you may want to pull the vc retrieve any pieces before they do any damage and replace the vc gasket

[magicdragon]

you could probably pocket one from a scrape yard

[AaronRVegas]

Sounds like the pcv valve they cost like $2 new so if your unsure its not a waste to buy a new one

If it broke off into the valve cover you may want to pull the vc retrieve any pieces before they do any damage and replace the vc gasket

he is 100% correct about this. it is the Positive Crankcase Ventilation Valve. your engine will run without it but i would not do that.

mang is right if there are any pieces that fell into the valve cover you will want to get them out BEFORE running your car again. if no pieces fell in there is no need to remove the valve cover.

but if you do have to remove the valve cover you should replace the valve cover gasket. you will need a in/lb torque wrench and some ATV or hondabond and you might as well replace the washers while you are at it and probably adjust the valves while you have the cover off.

basically if you dont need to remove the valve cover then dont. either way you should replace the PCV. i would just buy a new one since they are literally $2.