What are the reasons for the lack of power in the Great Wall Fengjun 5 diesel engine?

1 Answers
DiNolan
07/30/25 6:09am
If the acceleration is weak, first check the engine air filter. If it is too dirty, it will also cause weak acceleration. If the diesel filter has not been replaced for a long time, it will also affect fuel delivery. If everything else is fine, then the fuel pump pressure may be insufficient and the fuel pump needs to be calibrated. Air leaks or blockages in the intake system, as well as blockages in the turbocharger or exhaust system, can all lead to insufficient turbo pressure. When the vehicle is idling, repeatedly press the accelerator pedal sharply and observe if the electronically controlled turbocharger adjustment lever can move back and forth. Hold the turbo intake hose to feel a noticeable expansion. Since the turbocharger was recently replaced, the issue with the turbocharger itself can be basically ruled out.
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