Can I trust that little gauge?????
Our 07 Dodge - 5.9 Cummins - has a gauge like this on the air filter The owner's manual says to depend on this gauge to tell you when to change the filter. In fact, on page 391 it says never...
Forum Discussion
"on page 391 it says never to open the filter housing to inspect the air filter under normal conditions"
I do not understand this statement. I can not see where it can do any harm to look at the air filter during the regular oil change. That is what I do.
If the little gauge shows anything but green and you have a engine brake I would suggest looking at the filter ASAP. If it is restricting flow and you are engine braking on a long steep hill you risk sucking the filter element into the turbo. When accelerating the blocked flow will limit the rpms of diesel thus the air flow but when engine braking that is not the case.
I do not understand this statement. I can not see where it can do any harm to look at the air filter during the regular oil change. That is what I do.
If the little gauge shows anything but green and you have a engine brake I would suggest looking at the filter ASAP. If it is restricting flow and you are engine braking on a long steep hill you risk sucking the filter element into the turbo. When accelerating the blocked flow will limit the rpms of diesel thus the air flow but when engine braking that is not the case.
