Why is my p04db code not working?
Why is my p04db code not working? The hose that comes out from the crankcase that connects to air intake had no clamp. It was loose. Took it apart and wher that hose connects it was melted. And the pipe had a hole. Replace the pipe reset the code ran the truck and boom. It’s back to normal running strong and smooth. What is the p04db code for crankcase ventilation? P04DB Code. The code is P04DB Crankcase Ventilation. 2017… What is the p04db code on a Ford Escape? P04DB Code. The code is P04DB Crankcase Ventilation. 2017 ford Escape 2.0...