hose from air intake to manifold?
#12
The smell was blow by gasses, (very unique odor). When the engine is running, a small amount of combustion gasses naturally get past the piston rings and into the crankcase. Until the 1960's, engines had a steel tube called a "road draft" tube that stuck down just below the engine. While driving, the wind passing the tube created a vacuum in the crankcase and ventilated it. This was the first emission control device, and the PCV system took its place. When the PCV, (Positive Crankcase Ventilation) system is working properly, it ventilates the crankcase by maintaining a negative pressure, (vacuum) in both overhead areas and the crankcase. Filtered air is sucked into the engine through the inlet tube. It passes through the passenger side overhead area, down into the crankcase, and up into the PCV valve on the driver side rocker arm cover. The gasses are re-burned. If the system isn't working, crankcase pressure builds, (positive) and the gasses are pushed out through the path with the least resistance, in your case, the rocker arm cover grommet.
#13
The smell was blow by gasses, (very unique odor). When the engine is running, a small amount of combustion gasses naturally get past the piston rings and into the crankcase. Until the 1960's, engines had a steel tube called a "road draft" tube that stuck down just below the engine. While driving, the wind passing the tube created a vacuum in the crankcase and ventilated it. This was the first emission control device, and the PCV system took its place. When the PCV, (Positive Crankcase Ventilation) system is working properly, it ventilates the crankcase by maintaining a negative pressure, (vacuum) in both overhead areas and the crankcase. Filtered air is sucked into the engine through the inlet tube. It passes through the passenger side overhead area, down into the crankcase, and up into the PCV valve on the driver side rocker arm cover. The gasses are re-burned. If the system isn't working, crankcase pressure builds, (positive) and the gasses are pushed out through the path with the least resistance, in your case, the rocker arm cover grommet.
#14
With that tube pulled out, it will not set a DTC in memory, or turn the check engine light on. PCV is not monitored by the PCM, but if the vacuum line comes off of the PCV valve, it will set a DTC immediately. It will reference a vacuum leak or a lean condition, but it won't say a word about PCV
#15
With that tube pulled out, it will not set a DTC in memory, or turn the check engine light on. PCV is not monitored by the PCM, but if the vacuum line comes off of the PCV valve, it will set a DTC immediately. It will reference a vacuum leak or a lean condition, but it won't say a word about PCV
#16
You just answered your own question Keep an eye on things, or have the vehicle inspected regularly by a competant technician. You'd be surprised what can be caught before it's a problem. ...you just found one thing!
#17
yea thats a good point, captain as always, thank you for the quick help, i feel assured i get the right answer everytime i see you reply lol
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