An air cleaner is used to keep airborne dirt and dust out of the air flowing through the engine. This material, if allowed to enter the engine, would form an abrasive compound in conjunction with the engine oil and drastically shorten engine life. For this reason, you should never run the engine without the air cleaner in place except for a very brief period if required for trouble diagnosis. You should also be sure to use the proper replacement part to avoid poor fit and consequent air leakage.
Proper maintenance is important since a clogged air filter will allow an ever decreasing amount of air to enter the engine and, therefore, will increasingly enrichen the fuel/air mixture, causing poor fuel economy, a drastic increase in emissions and even serious damage to the catalytic converter system.
Replace the air cleaner filter element with a new one every 30,000 miles (48,000 km)-inspect every 15,000 miles (24,000 km), follow service procedures and replace as necessary-under ordinary driving conditions. If you drive under severe conditions (stop-and-go driving in dusty conditions, extensive idling, frequent short trips, operating at sustained high speeds during hot weather above 90°F/32°C, police, taxi, limousine or commercial type operation, or trailer towing), inspect the filter every 15,000 miles (24,000 km) and replace it as necessary.
When opening up the air cleaner housing to replace the air filter, wipe dust out of the air cleaner with a clean rag. Work carefully, to prevent the entry of dirt, dust, or foreign objects. Also, after you have reassembled the housing, inspect it to make sure the air cleaner is properly installed and sealed tightly. A vacuum leak here could allow dust to enter the engine and cause severely accelerated wear.
REMOVAL & INSTALLATION
See Figures 1 through 12
- Raise the hood of the vehicle and inspect all of the air cleaner components for damage or improper attachment.
- Remove the air cleaner cover.
- Remove the paper air filter element form the air cleaner body. Hold a light on the throttle body side of the element and view the filter from the other side. If light is visible through the element, blow the dust from the element and reuse. If the element is saturated with oil or light is not visible, replace the filter with a new one. If the air filter element is saturated with oil, perform crankcase ventilation system tests.
- Remove the fiber crankcase filter and clean it with solvent. Squeeze the filter dry and apply a small amount of engine oil to it. If a metallic mesh is used to retain the fiber filter, clean the mesh with solvent and reuse.
- Clean the inside of the air cleaner cover and body with compressed air. If the components are oily, wash the component with solvent.
- Place the filter element in the cleaner body and install the air cleaner cover. Retain the cover in place with the four retaining clips.
- Make certain all of the parts are correctly connected and in their proper positions.