Isuzu Cars and Trucks 1981-1991

Gasoline Fuel Filter

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The early model carbureted I-mark and Impulse have the fuel filter located either at the fuel tank inside the trunk or near the carburetor in the engine compartment.

The P'UP, Amigo and Rodeo are equipped with the fuel filter located directly in front of the fuel tank.

On the Trooper/Trooper II, the fuel filter is located along the inner side of the right frame rail, near the rear of the vehicle.

REMOVAL AND INSTALLATION
  1. Properly relieve the fuel system pressure.
  2.  
  3. Raise and safely support the vehicle.
  4.  
  5. Using 2 pairs of vise grips, pinch off the fuel line on each side of the fuel filter. Filters that use hex fittings, use a backup and flarenut wrench to loosen the inlet and outlet fittings.
  6.  
  7. Remove the fuel hose clamps and the fuel hoses from each side of the filter.
  8.  
  9. Remove the mounting bolt and the filter.
  10.  

To install:

  1. Using a new filter, install it to the vehicle; be sure its directional arrow faces forward.
  2.  
  3. Install the fuel hoses and fuel hose clamps to the filter.
  4.  
  5. Remove the vise grips.
  6.  
  7. Start the engine and check for leaks at the filter.
  8.  

 
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