Honda Civic. Manual — part 676

Fig. 80: Exploded View Of Fuel System Line

FUEL FILTER A WATER BLEEDING

* 2: Apply silicone oil silicone grease (Shinetsu silicone GR
10M) to a new rubber seal, and carefully install it into its
proper position.

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

1. Relieve the fuel pressure (between the engine and the manual shut-off valve)

(see FUEL PRESSURE RELIEVING ).

2. Lift the vehicle and support it with jackstands.
3. Remove the under-floor cover (see step 3 on page 11-147).
4. Loosen the drain plug (A) on fuel filter A slowly, and bleed the water from fuel

filter A. Hold the fuel filter housing (B) when loosening the drain plug.

Fig. 81: Loosening Drain Plug

5. Apply silicone grease (PARKER CHRISTO-LUBE) to a new O-ring (C), and

carefully install it into its proper position (see FUEL TANK SCRAPPING ).

6. Install parts in reverse order of removal.
7. Do the leak inspection procedure (see LEAK INSPECTION ).

FUEL RECEPTACLE INSPECTION

1. Check the nozzle O-ring (A), and replace it if it is damaged.

WARNING:

Compressed natural gas is flammable and highly
explosive. You could be killed or seriously injured if
leaking natural gas is ignited.
Stop the engine, and keep heat, sparks and flames
away.

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

Fig. 82: Identifying Nozzle O-Ring, Filter And Dust Cap

2. Check the filter (B) for contamination, and clean it if it is dirty.
3. Check the dust cap (C), and replace it if it is damaged.
4. If you detect a leak at the fuel receptacle valve (A) after fuel filling, blow fuel

on the valve from the nozzle to remove the contamination.

Fig. 83: Identifying Receptacle Valve

FUEL TANK INSPECTION

1. Remove the rear seat (see REAR SEAT REMOVAL/INSTALLATION ).
2. Remove the trunk lid from and the trunk partition (see TRIM

NOTE:

You must be an SCI-certified technician to do fuel tank
inspection or replacement work.

You do not need to remove the fuel tank for the
inspection.

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX

REMOVAL/INSTALLATION - TRUNK AREA ).

3. Check the fuel tank's expiration date at the label (A). If the tank is expired,

replace the tank (see FUEL TANK REMOVAL/INSTALLATION ).

Fig. 84: Identifying Fuel Tank Expiration Date Label

4. Using a flashlight and an inspection mirror, thoroughly check the exterior of

the fuel tank for any of these problems:

Excessive rust on the bands or the mounting frame

Abrasions

Cuts

Dents

Expansion or deformation

Evidence of overheating

Loose fuel tank frame bolts, and loose fuel tank band bolts and nuts

Incorrect alignment of the tank and bands

NOTE:

The horizontal alignment of marks (A) on the tank (B)
and the bands (C) do not need to be perfectly aligned.

2008 Honda Civic GX

2006-08 ENGINE PERFORMANCE Fuel Supply System - Civic GX