Honda Civic/CRX/del Sol 1984-1995 Repair Guide

Fuel Filter

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The recommended change interval for the fuel filter(s) on all models is every four years or 60,000 miles (96,500 km) under normal operating conditions. Severe service will require more frequent changing of the fuel filter.

Carbureted Civics have two fuel filters. All fuel injected Civics have one filter. On carbureted cars one filter is located in a holder on the underside of the car near the fuel tank. The other is located in the passenger's side of the engine compartment. Fuel injected cars also have their filter located in this area.

The fuel filter is a simple apparatus with one inlet (feed) and one outlet fitting designed to screen out contaminants from the fuel before it reaches the combustion chamber. The feed and output fittings on carbureted Civics are attached by clamps. Fuel injected models with higher line pressure, employ banjo bolts or a screw-in pipe may be used for the feed side.


CAUTION
Before disconnecting any fuel hoses, be sure to open the gas tank filler cap to relieve vapor pressure in the system. Observe all fuel handling precautions.

REMOVAL & INSTALLATION



1984-1987 Carbureted Models
FRONT FILTER
  1. Disconnect the negative battery cable.
  2.  
  3. Use fuel line clamps or equivalent locking pliers to pinch the fuel hoses closed.
  4.  
  5. Loosen the fuel hose clamps.
  6.  
  7. Disconnect the fuel lines and remove the fuel filter.
  8.  


WARNING
To avoid damaging the fuel lines when disconnecting them, slide back the clamps then twist the lines as you pull.

To install:
  1. Remove the filter cover from the old filter and install it on the new filter.
  2.  
  3. Install the new fuel filter and tighten the hose clamps.
  4.  
  5. Remove the fuel line clamps/locking pliers.
  6.  
  7. Connect the negative battery cable.
  8.  

REAR FILTER
  1. Raise the rear of the car and place jackstands in the proper locations.
  2.  
  3. Push in the tab of the fuel filter to release it from the holder, then remove the filter from its bracket.
  4.  
  5. Use fuel line clamps or equivalent locking pliers to pinch the fuel hoses closed.
  6.  


WARNING
To avoid damaging the fuel lines when disconnecting them, slide back the clamps then twist the lines as you pull.

  1. Install the new fuel filter.
  2.  
  3. Remove the fuel line clamps.
  4.  

Fuel Injected Models

See Figures 1 and 2

  1. Disconnect the negative battery cable.
  2.  
  3. Use fuel line clamps or equivalent locking pliers to pinch the fuel lines closed.
  4.  
  5. Wrap a shop towel around the fittings. Bleed off the fuel system pressure by slowly loosening the service bolt at the top of the fuel outlet fitting, while holding the special banjo bolt with another wrench.
  6.  
  7. Support the fuel filter with a wrench, then remove the banjo bolts or the fuel inlet pipe (as applicable) from the filter.
  8.  
  9. Loosen the fuel filter clamp and remove the filter from the vehicle.
  10.  


CAUTION
It is very important that ALL of the fuel line banjo bolt washers be replaced every time the banjo bolts are loosened. If the washers are not replaced, the fuel lines may leak pressurized fuel causing the risk of fire or explosion.

To install:
  1. Install the new filter in position and tighten the clamp mounting bolt to 7 ft. lbs. (10 Nm).
  2.  
  3. Attach the banjo fittings using new washers, and tighten the banjo bolts or fuel inlet pipe (as applicable) to the proper torque specification.
  4.  



1984-1990 cars: tighten both banjo bolts to 16 ft. lbs. (22 Nm).
 
1991 cars: tighten the banjo bolt attaching the fuel outlet hose (the one with the service bolt on top) to 16 ft. lbs. (22 Nm); tighten the banjo bolt to the fuel feed hose to 26 ft. lbs. (34 Nm).
 
1992-95 cars: tighten the banjo bolt to 16 ft. lbs. (22 Nm), and the fuel inlet pipe to 28 ft. lbs. (38 Nm).
 

  1. Start the vehicle and check immediately for leaks.
  2.  



Click image to see an enlarged view

Fig. Fig. 1: Wrap a rag around the fuel filter when releasing the fuel pressure



Click image to see an enlarged view

Fig. Fig. 2: Be careful to not lose the service screw from atop the fuel filter

 
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