The ISF2.8 engine uses a cartridge type fuel filter
The water-in-fuel sensor is built into the fuel filter housing along with the fuel heater.
The fuel filter is installed between the fuel pump and the fuel tank and is mounted on the left side member in the engine compartment.
The filter operates under vacuum conditions.
A hand pump is used to fill the system with fuel.
The fuel filter element can be replaced without removing the filter housing.
Disconnect the negative terminal from the battery.
We substitute a container for collecting fuel under the fuel filter housing.
Open the drain cock by turning the wing nut counterclockwise
Unscrew the plug on the cover of the filter housing
Drain the fuel in the filter housing through the tap.
We screw the air release plug into the cover.
We press the lock of the wire block and disconnect the block
Squeeze the latch and disconnect the fuel supply line from the filter fitting
Unscrew the clamping nut of the filter housing cover counterclockwise
Remove the cover from the case
Remove the filter element from the housing. Close the drain cock
Installing a new filter element
To facilitate pumping the power system, pour clean fuel into the filter housing to a level 10 - 15 mm below the edge of the housing.
Lubricate the O-ring of the housing cover with fuel.
We install the cover and tighten the clamping nut by at least 3.5 turns.
Pumping the power system (article - Maintenance of the GAZelle Next fuel system).
Removing and installing the fuel filter assembly
We completely remove the fuel filter only for its repair or replacement.
Disconnect the negative battery terminal
We substitute a container for draining fuel sediment under the filter housing
Open the drain cock by turning the wing nut counterclockwise
Drain the fuel sediment through the tap, screw the air release plug into the cover.
We press the lock of the wire block and disconnect the block
Squeeze the latch and disconnect the fuel supply line from the filter fitting
We press the retainer of the water sensor wire block and disconnect the block.
Squeeze the latch and disconnect the tip of the fuel outlet pipe from the filter fitting
Unscrew the nut securing the rear filter bracket to the frame side member and remove the bolt
Unscrew the nut securing the front filter bracket and remove the bolt from the hole
Remove the fuel filter
We unscrew the nut that secures the rear filter bracket to the filter housing, remove the bolt and remove the bracket from the filter
If necessary, disassemble the filter and remove the filter element
Install the filter in reverse order and bleed the fuel system.