The crankcase depression regulator valve (1) is replaced as an assembly. Replace the hoses (3), pipes (3) and grommet (4) as required, if the inspection indicates any cracks or decay.

Refer to the appropriate service information for diesel crankcase ventilation system maintenance requirements.

1. Remove the clamp (2) at the CDR valve (1).
2. Remove the hose (3) from the CDR valve (1).
3. Remove the CDR valve by pulling straight up.

1. Install the CDR valve (1) into the valve cover.
2. Install the hose (3).
3. Install the clamp (2).

Tighten
Tighten the clamp to 1.7 N·m (15 lb in).