What's causing this clicking noise?

[silversport]

do you ever top off the fuel tank???...don't...nice job on your repair and thanks for sharing...good luck

 

[llmercll]

do you ever top off the fuel tank???...don't...nice job on your repair and thanks for sharing...good luck

i dont top off, just fill normally

 

[Kjmack]

bought an ac delco purge valve, changed it today in 10 minutes. Seems to have solved my issue. No more noise and the car is running better.

Nice job , when car is quieter it's always running better .

 

[Rand]

what do you mean top off?

stop when it clicks off the first time. = good
top off = keep going.