DAF 95XF. Manual - part 382

4

DIAGNOSIS

Tractive problems

95

XF series

1-2

1

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 0008

4

95

XF series

XF engine fuel system

DIAGNOSIS

2-1

2.  XF ENGINE FUEL SYSTEM

2.1

FAULT-FINDING TABLE

FAULT: ENGINE KNOCKS

Possible cause

Remedy

Incorrect or contaminated injectors installed.

Check whether correct injectors have been installed.
Clean contaminated injectors and set them.

Incorrect injection timing, or incorrect fuel
pump setting.

Check the injection timing and/or fuel pump setting.

1

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 0008

4

DIAGNOSIS

XF engine fuel system

95

XF series

2-2

1

©

 0008

4

95

XF series

XF engine inlet and exhaust system

DIAGNOSIS

3-1

3.  XF ENGINE INLET AND EXHAUST SYSTEM

3.1

FAULT-FINDING TABLE

FAULT: ENGINE TEMPERATURE INCREASES

Possible cause

Remedy

Contaminated intercooler.

Check/clean intercooler.

Wastegate setting is too high.

Check wastegate setting.

Air hose from the turbocharger compression
chamber to the wastegate diaphragm leaks or is
not connected.

Check air hose. Replace if necessary.

FAULT: ENGINE USES TOO MUCH OIL

Possible cause

Remedy

Air cleaner element blocked.

Clean or replace air cleaner element.

Blocked air inlet to turbocharger.

Check air inlet and remove any obstacles.

Compressor side of turbocharger contaminated.

Clean compressor side with a non-corrosive
cleaning agent or a soft brush. Check the inlet
side for carbon deposits or other contamination.

Turbocharger oil discharge pipe is blocked.

Check turbocharger oil discharge pipe. Replace
the pipe, if necessary.

Damaged turbocharger.

Replace turbocharger and identify the cause.

FAULT: ENGINE PRODUCES EXTREME SMOKE LEVELS

Possible cause

Remedy

Air cleaner element blocked.

Clean or replace air cleaner element.

1

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 0008