All engines are equipped with a dry type, replaceable air filter element. The element should be replaced at the recommended intervals shown in the "Maintenance Chart'' located in this Section. If your vehicle is operated under extremely dusty or severe operating conditions, more frequent changes are necessary. Inspect the element at least twice a year. Early spring and the beginning of fall are good times for this inspection. Remove the element and check for holes in the filter. Check the cleaner housing for signs of dirt or dust that has leaked through the filter element. Place a light on the inside of the element and look through the filter at the light. If no glow of light can be seen through the element material, replace the filter. If holes in the filter are apparent, or if any sign of dirt leakage through the filter is noticed, replace the filter.
REMOVAL & INSTALLATION
See Figures 1 through 9
The element can, in most cases, be replaced by simply removing the wing nut and cleaner assembly cover. If the inside of the housing is dirty, however, remove the assembly for cleaning to prevent dirt from entering the carburetor or intake assembly.
See Figures 10 through 15
- Disconnect all hoses, ducts and vacuum lines from the air cleaner assembly.
- On round or oval-shape air cleaners, remove the top cover wing nut and grommet (if equipped). Remove any side bracket mount retaining bolts (if equipped). Remove the air cleaner assembly from the top of the carburetor or intake assembly.
Air cleaner assemblies on electronically fuel injected vehicles have a different design and location. Instead of the traditional wing nut securing a flat-top cover above the carburetor or intake assembly, these irregularly shaped assemblies are typically attached to a resonator and are bolted to a fender apron. Filter elements within these types of assemblies may be accessed by removing the housing fasteners.
- Remove the cover and the element, if not already done. Wipe clean all inside surfaces of the air cleaner housing and cover. If so equipped, check the condition of the mounting gasket (between the air cleaner base and the carburetor or intake assembly) and replace the gasket if it is worn or broken.
- Reposition the air cleaner housing, element, cover and grommet (if equipped) on the carburetor or intake assembly.
- Reconnect all hoses, ducts and vacuum lines which were removed and finger-tighten the wing nut. On fuel injected vehicles, reinstall any fasteners which were removed or return the latches to their closed position.
See Figure 16
Replace or inspect the air cleaner-mounted crankcase ventilation system filter (on models so-equipped) at the same time the air cleaner filter element is serviced. To replace the filter, simply remove the air cleaner cover and pull the filter from its housing. Push a new filter into the housing and install the air cleaner cover. If the filter and plastic holder need replacement, detach the PCV hose elbow and remove the clip mounting the feed tube to the air cleaner housing. Remove the assembly from the air cleaner. Installation is the reverse of removal.