I think I'm losing my mind, but I cant seem to locate the Low Side service port on my 1995 F150 4.9L I6.....

the high port is right next to the coolant recovery bottle....where is the low side?

Thanks in advance..........

 

Mine is on the dryer. Passenger side on the firewall.

 

It is on the dryer, on the right hand side of the engine at the fire wall.