Hello everyone, I have a 2000 Chevy Blazer. The transfer case control module keeps clicking, the lights on the dashboard for the switch are blinking. The truck will also not shift properly and hesitates as if there was water in the fuel. This has been happening intermittently the last few months. I have removed the module cleaned all the pins and added grease to the connectors. I'm wondering if I need to change the module. Any suggestions? Any help greatly appreciated!

 

How's the transmission fuild? When's the last time it was changed?