Need help geting to glow plug connector pins

[Racerace]

I can't figure out how to disconnect the connector on the vlave cover to get to the glow plug pins. I can't see how to unlock the connector. I need to check the resistance of the glow plugs. this is on a 99 F350 PSD. Help!

[pipelayerjdh]

Use a stubby flat head screwdriver to gently pry up on the conector retainer and pull it back.

press down on the center then pull back. You might need a small pocket screwdriver to pop it out once tab is pressed. Pry with screwdriver between both connectors being careful to do it on each side.