Chrysler Front Wheel Drive Cars 4-CYL 1981-1995 Repair Information

Air Cleaner

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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.

SERVICING



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



2.2L Engines
CARBURETED MODELS

See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: The air filter orientation in the air cleaner housing-2.2L carbureted engines

Make sure you perform the steps in exactly the sequence described below, or the air cleaner may leak, causing accelerated engine wear.

  1. Unfasten the three hold-down clips on the air cleaner assembly lid.
  2.  
  3. Remove the three wing nuts retaining the air cleaner-crossover cover to the carburetor and bracket.
  4.  
  5. Lift the cover and pull the old element out of the air cleaner assembly.
  6.  

To install:
  1. Install the new filter with the screen upward.
  2.  
  3. Position the cover on top of the air cleaner assembly, aligning the three clips and making sure the element seals all around. Let the three studs stick upward through the holes in the cover.
  4.  
  5. Install both of the plastic wing nuts onto the two studs on the carburetor. Tighten each wing nut finger-tight.
  6.  
  7. Install the third wing nut-the one that fastens the air cleaner to the support bracket-and finger-tighten it.
  8.  
  9. Close the three hold-down clips.
  10.  

1981-85 ELECTRONIC FUEL INJECTED (EFI) MODELS

The Chrysler single-point fuel injection system is referred to as Electronic Fuel Injection (EFI) throughout this information.

  1. Remove the clamp fastening the air hose to the throttle body.
  2.  
  3. Unfasten the five clips which hold the top of the air cleaner to the lower housing.
  4.  
  5. Pull the air hose off the throttle body, then lift the cover and hose off the bottom of the air cleaner.
  6.  
  7. Remove the filter from the air cleaner assembly.
  8.  

To install:
  1. Install the new filter by setting it screen side up in the plastic bottom section of the lower air cleaner housing.
  2.  
  3. Install the clamp loosely onto the throttle body hose, then connect the hose to the throttle body.
  4.  
  5. Slide the top of the air cleaner squarely down over the seal of the filter element, making sure it is not pinching the seal anywhere. It should lay flat all around its circumference.
  6.  
  7. Fasten the five hold-down clips, then tighten the clamp around the hose at the throttle body until it is snug.
  8.  

1986-95 EFI MODELS

See Figure 2

Click image to see an enlarged view

Fig. Fig. 2: When installing the thumbscrews, make sure to tighten them in the sequence shown

When changing the filter element in this air cleaner, the body of the unit remains mounted on the intake manifold. Only the top cover need be removed unless the crankcase ventilation filter must be serviced.

  1. Remove the three attaching thumbscrews, then lift the air cleaner top cover off of the cleaner housing.
  2.  
  3. If necessary, remove the small filter element retaining plate from the air filter.
  4.  
  5. Grab the paper element at two locations on the inside diameter, then lift it out of the air cleaner housing.
  6.  

To install:
  1. Install the new filter by turning the element so that its flat sides line up with those in the housing.
  2.  
  3. Install the air cleaner housing lid so that it sits flat on the housing.
  4.  
  5. Install the three thumbscrews. Be careful to tighten the three fasteners for the top cover in the numbered order shown in the illustration. They should not be extremely tight (the recommended torque value is only 12 inch lbs. or 1.36 Nm).
  6.  

MULTI-PORT FUEL INJECTED (TURBOCHARGED) MODELS

See Figure 3

Click image to see an enlarged view

Fig. Fig. 3: The four bails (clips) hold the air cleaner cover on the housing, thereby holding the filter in the housing

  1. Unfasten the hold-down clips attaching the top cover of the air cleaner to the main housing.
  2.  
  3. Gently pull the cover off the housing.
  4.  
  5. If the intake hose restricts the movement of the air cleaner cover so that you cannot gain access to the element without putting a lot of stress on the hose, loosen the hose clamp and pull the air intake hose off the housing cover.
  6.  
  7. Remove the element, noting that the rubber seal goes in last and fits into the groove around the top, or intake side, of the lower housing.
  8.  

To install:
  1. Install the new element in the air cleaner housing. Make certain that the rubber seal fits into the groove around the top of the housing.
  2.  
  3. Install the top cover over the element so that it fits squarely over the rubber seal, then fasten all of the hold-down clips securely.
  4.  
  5. If necessary, reconnect the intake hose and tighten the clamp securely.
  6.  

2.5L Engines
EXCEPT PREMIER, FLEXIBLE FUEL AND TURBOCHARGED MODELS

See Figures 2, 4, 5 and 6

Click image to see an enlarged view

Fig. Fig. 4: To remove the air filter, first remove the hold-down thumbscrews ...



Click image to see an enlarged view

Fig. Fig. 5: ... lift the upper filter cover and small retainer plate off of the filter-2.5L except Premier engine



Click image to see an enlarged view

Fig. Fig. 6: The air filter element can then be removed from its recess in the lower housing

When changing the filter element in this air cleaner, the body of the unit remains mounted on the intake manifold. Only the top cover need be removed unless the crankcase ventilation filter must be serviced.

  1. Remove the three attaching thumbscrews, then lift the air cleaner top cover off of the cleaner housing.
  2.  
  3. Grab the paper element at two locations on the inside diameter, then lift it out of the air cleaner housing.
  4.  

To install:
  1. Install the new filter by turning the element so that its flat sides line up with those in the housing.
  2.  
  3. Install the air cleaner housing lid so that it sits flat on the housing.
  4.  
  5. Install the three thumbscrews. Be careful to tighten the three fasteners for the top cover in the numbered order shown in the illustration. They should not be extremely tight (the recommended torque value is only 12 inch lbs./1.36 Nm).
  6.  

PREMIER
  1. Unfasten the four clips fastening the air cleaner housing cover in place.
  2.  
  3. Lift the cover off the lower housing (the intake hose is flexible enough to permit this), then remove the filter.
  4.  

To install:
  1. Clean the inside of the air cleaner housing of all dirt, grease and other contaminants before installing the new air filter.
  2.  
  3. Set the new filter in place inside of the air cleaner housing. Make sure that it sits square in the housing.
  4.  
  5. Install the housing cover onto the air cleaner housing. Make sure that it fits securely over the air cleaner filter.
  6.  
  7. Fasten the hold-down clips.
  8.  

See Figure 7

Click image to see an enlarged view

Fig. Fig. 7: Blow the air cleaner filter element clean with compressed air

TURBOCHARGED AND FLEXIBLE FUEL MODELS
  1. Unfasten the hold-down clips attaching the top cover of the air cleaner to the main housing.
  2.  
  3. Gently pull the cover off the housing.
  4.  
  5. If the intake hose restricts the movement of the air cleaner cover so that you cannot gain access to the element without putting a lot of stress on the hose, loosen the hose clamp and pull the air intake hose off the housing cover.
  6.  
  7. Remove the element, noting that the rubber seal goes in last and fits into the groove around the top, or intake side, of the lower housing.
  8.  
  9. Wipe the housing clean with a shop rag and inspect the housing, inlet hose and filter element for damage.
  10.  
  11. Hold a shop light on the throttle body side of the air filter element. Inspect the air intake side of the element for visible light. If the shop light is visible through the element, blow the element clean with compressed air and reuse the filter. If the filter saturated with oil or the light is not visible, replace the filter with a new one. If the element is saturated with oil, perform an inspection of the PCV system.
  12.  

To install:
  1. Install the new element in the air cleaner housing. Make certain that the rubber seal fits into the groove around the top of the housing.
  2.  
  3. Install the top cover over the element so that it fits squarely over the rubber seal, then fasten all of the hold-down clips securely.
  4.  
  5. If necessary, reconnect the intake hose and tighten the clamp securely.
  6.  

2.6L Engines

See Figure 8

  1. Unfasten the four clips fastening the air cleaner housing cover in place.
  2.  
  3. Lift the cover off the lower housing (the intake hose is flexible enough to permit this), then remove the filter.
  4.  



Click image to see an enlarged view

Fig. Fig. 8: The air hose does not need to be disconnected to remove the air filter-the air hose is very flexible

To install:
  1. Clean the inside of the air cleaner housing of all dirt, grease and other contaminants before installing the new air filter.
  2.  
  3. Set the new filter in place inside of the air cleaner housing. Make sure that it sits square in the housing.
  4.  
  5. Install the housing cover onto the air cleaner housing. Make sure that it fits securely over the air cleaner filter.
  6.  
  7. Fasten the hold-down clips.
  8.  

 
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