I have a new to me 03,C2 cab.
Neither wind shield washers spray. Headlight washers work ok.
I disconnect hose from pump motor and T connector. I cannot blow thru either hose to washer. Pump motor runs OK. Pushed a pin into washer outlet OK. So I figure something in washer head is plugged. I want to remove head and look closer and maybe soak in some thing. The washer head has wires to it for heater. My problem at the moment is how to disconnect plug from firewall so I can pull washer out. I have input side of plug disconnected.
Do I just pry out the plug from the wall???

thanks
RBC

 

OK I figured it out. The female side of heater plug is attached to plastic wall on a slide. On inboard side of plug there is a small lever, push down on that lever and you can slide plug toward fender.
I have washer heads soaking in white vinegar to see if it will clear it. Hoping vinegar does not damage heat element.
RBC