Removal & Installation
3.9L, 5.2L & 5.9L Gasoline Engines
Do NOT attempt to remove the filter element by removing the housing top cover only. The entire assembly must be removed from the engine for filter replacement.
- Remove the air inlet tube.
- Loosen, but Do NOT remove, the screw clamp that secures the air cleaner housing to the throttle body. (Note clamp-positioning tabs on air cleaner housing.)
- Disconnect the breather hose at the rear of the air cleaner housing.
- On the 5.9L HDC V-8 engine, disconnect the air pump hose at the air cleaner housing.
- Lift the assembly from the throttle body while slipping it from the mounting studs.
- Unlatch the springs clips and tilt the top cover up and to the rear to remove.
- Remove the filter element.
- Clean the inside of the housing, removing any debris or foreign matter.
- Check condition of the throttle body seal and replace it if damaged.
- Install a new filter element and refit the housing top cover, inserting tabs into the slots. Latch the three clips.
- Check the position of the mounting stud rubber grommet; then, install the housing on the throttle body. Push down to ensure it is seated.
- Tighten the throttle body clamp to 15 inch lbs (2 Nm). Check that the housing has been secured.
- Reconnect all the hoses as removed.
- Loosen the clamp and remove the air inlet tube at the front of the air cleaner housing.
- Unlatch the spring clips and remove the housing cover.
- Remove the old filter element.
- Clean the inside of the housing. A small amount of oil wetting is normal.
- Install the new element, replace the cover and latch the spring clips.
- Connect the air inlet tube and tighten the clamp.
Diesel engines are equipped with a Filter Minder® gauge. This is an airflow restriction gauge that will indicate when it is time to replace the air filter. The yellow disc inside will move along a graduated scale. Once the engine has been shut off, the disc will be held at the highest restriction the air filter has experienced. Check with the engine OFF . If the yellow disk has reached the RED zone on the graduated scale, the filter should be replaced. Do NOT remove the top of the filter housing unless the scale on the unit indicates it is time to do so.
- Remove the air inlet tube.
- Unlatch the four spring clips located around the outer edges of the air cleaner seal.
- Tilt the upper half of the air cleaner upward, pull it forward, and remove the cover.
- Remove the air cleaner element.
- Clean the inside of the air cleaner of any leaves, debris, or excessive dirt before installing a new air filter.
- Place the filter element inside the lower half of the air cleaner.
- Align the tabs on the top half to the slots on the bottom half of the air cleaner while tilting the air inlet end upward.
- Push the tabs into the slots and push the top half downward to seat on the air filter seal.
Do NOT use excessive force when aligning the two halves of the air cleaner assembly. A broken air cleaner assembly could cause damage to internal engine parts. The air filter seal should be seated within the lower housing with no excess material outside or above the air cleaner seam. Make sure the proper air filter has been selected, that the air filter is properly placed in the housing, and that the tabs on the top half are properly aligned with the slots on the lower half of the air cleaner.
- Noting the alignment notches, install the air inlet tube and tighten the clamp to 25 inch lbs. (3 Nm).
- After replacing the filter element, press the button on top of the Filter Minder® to reset. The yellow disk should spring back to the UP position.
Some commercial engine cleaners may discolor or damage the plastic housing of the Filter Minder®. Cover the unit when using these compounds.
Sometimes a temporary blockage of the air passages-as might be caused by snow or heavy rain -will cause the disk to move into the RED zone. If the filter is found to be clean, allow it to dry and retest under normal condition.