Hello,
​​​​​​My XJ has an intermittent P0441 trouble code, so far I've changed the purge valve solenoid twice, first one was a doorman second one a Mopar brand from rock auto.
I've also replaced the gas cap but the code keeps coming back, one thing I've noticed is that the valve is not clicking.
could it be that I've got 2 defective valves in a row?
I'm returning the Mopar one I've got from rock auto next week and hoping that the third one works/clicks.
anything else I should be checking?

thanks in advance!