Hi, need help, just removed instrument cluster from 2004 Trailblazer and now won't start, just get a loud clicking that sounds like a relay switch. Checked fuse box and all fuses are good. Blazer started and ran fine before I removed instrument cluster. Any help appreciated.
Thanks. Frank

 

Try to double check all the connections behind the cluster, if is some plug that is lose it wont start

 

Since it started after the cluster replacement, it is obvious that something happened at that time. Not only check all your connections, also check all other connections and wires near the cluster as one of them may have been disconnected or damaged by accident.