Cowl Cleaning
Right by the hinge area below the cowl top surface where the cowl metal and firewall metal meet there should either be an open slot between the metals or a hole (maybe both)
The fender is off this car, but you can get to them with the fender on enough to even stick your finger in the hole.
So I just rinsed heavily with water down the vent and made sure those holes stayed clear of crap until nothing but clean water came out. (both sides)
Right by the hinge area below the cowl top surface where the cowl metal and firewall metal meet there should either be an open slot between the metals or a hole (maybe both)
The fender is off this car, but you can get to them with the fender on enough to even stick your finger in the hole.
So I just rinsed heavily with water down the vent and made sure those holes stayed clear of crap until nothing but clean water came out. (both sides)