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I took the plunge and removed my 722.9 valve body to replace a solenoid and decided to clean the valve body while I was at it. Everything we going great until I realized I was seemingly short of check-valves (not the ball, the little plastic valves). In a quick search of the internet it seems not all check-valve locations have a check-valve placed in them and this, apparently, is dependant on the vehicle. I have torn my garage up one side and down the other looking for them.
Stupidly, I did not mark the location of the check-valves as I took the valve body apart as I assumed (yes never assume) all the check-valves were a one-to-one mapping to possible check-valve location.
I have WIS and EPC but it doesn't go down to that level, at least not what I could find.
Would anyone know the exact check-valve layout on this particular vehicle?
Attached the attached pictures show the valve body with check valves installed (green circles) and empty check-valve locations (red circles). I just started installing them left to right so the green circles are not necessarily correct.
Did you ever find a diagram/layout showing which two aren't used?
I had two check valves stick to the plate, and I only have the layout for 8 check valves.
Any info would be great.