I’m in the process of replacing the water pump on my 91 YJ 2.5. I removed the filter box for more room and noticed the tube from it to the intake manifold was oily inside it. All I want to do is undo the plastic clamp at the intake side but I can’t figure it out. I just pulled it off the air box side but I didn’t want to screw something up by pulling it off the intake.
What’s secret to undo this clamp that can be shared with others? Thanks.