boston241

I have a 98 accord 4cyl vtec a/t originally from florida i just relocated to massachusetts and my evap system has been making a continuous loud clicking / tapping sound emitting from the evap canister area. On this model the canister is located by the fuel tank under the vehicle. I made a visiual inspection and did not see anything loose or cracked and there was no fuel odor when i looked at the canister ,hoses, bypass solenoid valve, and canister vent shut valve that is located in that area. This problem has existed before the relocation.

Next i checked the purge control solenoid valve located on the intake manifold. With the engine at idle the purge control solenoid valve makes a very loud continuous ticking as well that is noticeable from up to 20 feet away with the hood up. So disconnected the electrical connector and the ticking stoped. The ecm did not throw any codes when i removed the connector. What could be wrong i had the vehicle for one year and had one check engine light that was po420 catalyst system efficiency below threshold (bank no. 1). I cleared the code and have driven a few hundred miles and havent had any codes since.

i havent found much useful infomation in the forums, google, or youtube. please help me thank you very much!