I have a clicking noise when I start engine then it stops when I turn engine off it starts clicking then stops
I believe you are hearing the purge control solenoid for the vapor canister but it seems a little loud if you can hear it over the engine noise, the only time you should be able to hear it is on a start up, and for a few seconds after engine shut down, then quiet. Might try to find exactly it is coming from.
Search Chevrolet Silverado 1500 Questions
Chevrolet Silverado 1500 Experts
Related Models For Sale
Used Cars For Sale