2005 Dodge Ram 2500 Pickup Owner Manual Diesel - Page 349

MAINTAINING YOUR VEHICLE 349 Engine Air Cleaner Filter CAUTION! All air entering the engine intake must be filtered. The abrasive particles in unfiltered air will cause rapid wear to engine components. The air filter housing on your Diesel Ram is equipped with a Filter Minder™. This is an air flow restriction gauge that will indicate when the filter element needs to be replaced. Do not remove the top of the air filter housing to inspect the filter element on your diesel engine under normal operating conditions. The clear plastic housing on the Filter Minder™ allows you to view the amount of air pressure drop across the filter element. It consists of a diaphragm and a calibrated spring sealed inside the plastic housing. As the air cleaner filter becomes clogged and air pressure drop 7