We Service Automotive, Earth Moving and Heavy Transport

STC N14 ENGINE

White Smoke

1.  Low oil pressure when engine is cold.
2.  Problem with injectors.
3.  Excessive fuel in intake manifold.
4.  Injector settings not correct.
5.  STC valve not correct.
6.  Problems with cylinder head.

Black Smoke

1. 

Injector cups cracked or damaged.

2. 

AFC on fuel pump incorrect.

3. 

Intake air restriction.

4. 

Fuel return line blocked.

5. 

Exhaust or engine brake incorrect.

6. 

Injector settings.

Diesel in Oil

1.  Injector cup cracked.
2.  Front cover drive shaft seal of fuel pump leaks.
3.  STC valve seals leak.
4.  Injector seals damaged.
5.  Cracked cylinder head.

Engine will not start

1.  Fuel filter or line blocked.
2.  Fuel pump starting fuel to low.
3.  Shut of solenoid damaged.
4.  Injector seals damaged.
5.  Injector cups blocked.
6.  Incorrect injector settings.
7.  Fuel tank level to low.

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We Service Automotive, Earth Moving and Heavy Transport