Dear Sirs, Mechanic cars, our topic today about diesel engines where we will address the most important reasons that change the color of exhaust in diesel engines in particular,

The change in the color of exhaust has several different reasons and this is due to several factors, the most important are:

- Damage or wear of the skin of the tubes
- The air is low and insufficient inside the combustion chamber, causing black smoke out of the exhaust
- There is a problem in the sprays to pump too much fuel or improperly sprayed
- There is a defect in the diesel pump and its symptoms are black smoke
- There is a defect in the timing of the diesel pump
- Damage to piston shafts.                                                                                                                         
                                                                                                                                                                  When there is thick black smoke, here is either because:

- Lack of sufficient air in the engine so that you have to change the air filter after examination, or check the airway may be clogging, which prevents the air from entering in sufficient quantity,

- Error in the timing of the fuel pump and need to adjust the spin

- There is a defect or defect in the sprays of sprays

- When John thick white smoke is the problem mostly because:

Error in ignition timing of diesel pump.                                                                                                                   
                                                                                                                                                                    - When there is thick blue smoke Color:
                                                                                                                                                                  - Here the problem is mostly due to the presence of too much oil in the engine, and the size must be adjusted.
- or the presence of damage in the oil of the bulbs
- There is damage to piston rings and must be changed                                     
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