RAM 3500 Truck 4WD L6-6.7L DSL Turbo (2008)
operation:
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High air intake restriction. Check for high intake restriction
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A restricted crankcase ventilation filter. Change the filter
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A malfunctioning or misassembled closed crankcase ventilation valve. Check the valve operation and change if necessary
2. The closed crankcase ventilation valve should allow crankcases gases to flow when the engine is not running and/or removed from the engine.
NOTE: Application of air can be applied either to the inlet or outlet of the closed crankcase ventilation valve.
3. A small amount of air can be blown through the closed crankcase ventilation valve (less than 34 kPa [5 psi]) to check the closed crankcase
ventilation valve.
4. If air does not go through the closed crankcase ventilation valve, replace the valve.