Hyundai Coupes/Sedans 1986-1993 Repair Guide

Air Cleaner

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The air cleaner contains a dry filter element that keeps most dirt and dust from entering the engine via the carburetor or throttle body air intake system. Never run the engine (other than for adjusting) without a filter element. The dirt and dust entering the engine can cause expensive damage to the pistons, bearings, etc.

Proper maintenance of the cleaner element is vital. A clogged filter element will fail to supply sufficient fresh air to the carburetor, causing an overly rich fuel/air mixture. Such a condition will result in poor engine performance and economy.

Periodical cleaning or replacing of the filter element will help your car last longer and run better.

REMOVAL & INSTALLATION



1986-89 Excel

See Figure 1

To clean or replace the air cleaner filter element, remove the top wing nut/nuts and loosen the side mounted spring clips (if equipped). Lift off the top of the air cleaner and remove the filter element. Replace the filter element if mileage or extreme dirt clogging is indicated.



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Fig. Fig. 1: Air cleaner assembly used on 1986-89 Excel

1990-93 Excel, Elantra , Scoupe And Sonata

See Figures 2 through 8



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Fig. Fig. 2: Air cleaner assembly component view-1990-93 Excel, Elantra, Scoupe and Sonata



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Fig. Fig. 3: The air flow sensor uses a weatherproof connector. Inspect the seal for damage and replace as necessary



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Fig. Fig. 4: Unscrew the clamp that attaches the air hose duct to the air filter assembly



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Fig. Fig. 5: Take care when removing the air hose duct. The air flow sensor inside the air filter is easily damaged



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Fig. Fig. 6: Unfasten the air filter cover clips by unlatching them as shown-Excel, Scoupe and 1994-95 Elantra



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Fig. Fig. 7: Carefully remove the air filter cover. The air flow sensor (arrow) is at the center of the cover



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Fig. Fig. 8: The round air filter element is made of paper and cannot be cleaned. When dirty, it must be replaced

  1. Loosen the hose clamp that connects the intake flexible hose to the air cleaner cover.
  2.  
  3. Separate the hose from the cover.
  4.  
  5. Disconnect the air flow sensor connector.
  6.  
  7. Release the air cleaner cover clips. Move the flexible air intake out of the way to allow you to remove the air cleaner cover.
  8.  

Remove the air cleaner cover carefully because it contains the air flow sensor. The air flow sensor is very delicate.

  1. Remove the air cleaner element from the housing and wipe the housing clean with a dry rag.
  2.  
  3. Place the new filter element into the housing making sure that it seats properly in the body of the air cleaner.
  4.  
  5. Replace the air cleaner cover and connect the air flow sensor and pressure relief valve multi-connectors.
  6.  
  7. Connect the air intake hose to the air cleaner cover and tighten the hose clamp.
  8.  

 
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