Opel Frontera UBS. Manual - part 1236

6E–310

ENGINE DRIVEABILITY AND EMISSIONS

Pedal Stroke Adjustment Procedure

1. Loosen the jam nut and rotate the kick-down switch

counterclockwise.

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2. Fully depress the pedal and hold it by hand.  Rotate

the switch clockwise until the switch clicks.

3. Rotate the switch 1/2 turn further and lock it in this

position by tightening the jam nut.

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4. Step on the accelerator pedal and make sure there is

a clicking sound at the full-stroke position.

Fuel Filter Cap

General Description

The fuel filler cap includes a vacuum valve and a pressure
valve.

If high vacuum or high pressure occurs in the fuel tank,
each valve works to adjust the pressure in order to
prevent damage to the tank at the EGR valve.

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Inspection Procedure

NOTE: Replace the fuel filler cap with the same type of
filler cap that was originally installed on the vehicle.

D

Check the seal ring in the filler cap for any abnormality
and for seal condition.

D

Replace the filler cap if any abnormality is found.

Fuel Filter

Removal Procedure

1. Disconnect the negative battery cable.
2. Remove the fuel filler cap.

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6E–311

ENGINE DRIVEABILITY AND EMISSIONS

3. Disconnect the fuel line from the fuel filter on the

engine side.

4. Disconnect the fuel line from the fuel filter on the fuel

tank side.

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5. Remove the bolt on the fuel filter holder.

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6. Remove the fuel filter.

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Inspection Procedure

1. Replace the fuel filter when the following occur:

D

Fuel leaks from the fuel filter body.

D

The fuel filter body is damaged.

D

The fuel filter is clogged with dirt or sediment.

2. If the drain hole is clogged, clean the drain.

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6E–312

ENGINE DRIVEABILITY AND EMISSIONS

Installation Procedure

1. Install the fuel filter in the correct direction.

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2. Install the bolt on the fuel filter holder.

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3. Connect the fuel line on the engine side.
4. Connect the fuel line on the fuel tank side.

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5. Install the fuel filler cap.

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6. Connect the negative battery cable.

6E–313

ENGINE DRIVEABILITY AND EMISSIONS

Fuel Gauge Unit

Removal Procedure

1. Disconnect the negative battery cable.
2. Loosen the fuel filler cap.
3. Drain the fuel from the tank.

Tighten

D

Tighten the drain plug to 20 N·m (14 lb ft.).

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4. Disconnect the wiring connector from the fuel gauge

unit.

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5. Remove the fuel gauge unit retaining screws.
6. Remove the fuel gauge unit.

D

Cover or plug the fuel tank to prevent dust, dirt, or
debris from entering the tank.

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Installation Procedure

1. Install the fuel gauge unit.
2. Install the fuel gauge unit retaining screws.

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