F 350 2WD Super Duty V10-6.8L VIN S (1999)
3. Remove the control valves and springs from the upper main control valve body. Inspect the valves for nicks and buffs. If the valves are damaged
the main control valve body will need to be replaced.
4. Remove the control valves and springs from the lower main control valve body. Inspect the valves for nicks and buffs. If the valves are damaged
the main control valve body will need to be replaced.
5. Inspect all valves, valve sleeves, valve bores for scores, nick or burrs. Check all fluid passages for obstructions. Inspect all mating surfaces for
burrs and scores.
6. Inspect all springs for distortion. Check all valves and plungers for free movement in their respective bores. All the components when dry must fall
from their own weight in their respective bores.
7. Roll the valves on a flat surface to check for bent or out-of-round condition.
Assembly
1. Install the control valves and springs from the lower main control valve body.
