Removing connections from bulkhead!

Here's one: question on the main harness plug on firewall

The male terminals are removed by squeezing the barb shown here and pushing out
upload_2019-6-18_20-35-47-png.png

These are M&H reproductions. PED is Packard Electric Division. Yours may be marked differently.

Definately go under the dash and remove the mating female terminal to check for condition. For that flatten a cotter pin or get the terminal removal tool.