According to the information you provided, on the Great Wall Fengjun 5 diesel 2013, the instrument light is sometimes not on and the ignition motor is idling. The following problems and reasons may exist:
1. The instrument indicator light does not come on. This may be due to a circuit failure. The instrument indicator light may not illuminate normally due to problems such as poor circuit contact, blown fuse, or insufficient battery.
2. Engine Problems: Ignition engine idling may be caused by engine failure. The engine may not start properly due to problems such as insufficient fuel supply, ignition system failure, or insufficient cylinder pressure.
If there is a problem where the instrument light does not light up, you can check the vehicle's circuit system to make sure the circuit is well connected, checkand replace damaged fuses and make sure the battery has enough power. If the problem persists, it is recommended to go to a professional auto repair center for maintenance.
If there is an ignition engine idling problem, you can check the fuel system to make sure the fuel line is clear and the fuel pump is working properly. Also check the ignition system to make sure the spark plugs are working properly. If the problem persists, it is recommended to go to a professional auto repair center for maintenance.
Extended Content: In addition to circuit and engine problems, other reasons that may cause the instrument light to not illuminate and cause the ignition motor to idle include a failure of the transmission system, starter failure, filter blockagefuel, etc. Therefore, when facing similar problems, it is better to seek help from professional car maintenance personnel. This can use instruments, equipment and professional knowledge to accurately diagnose the fault and provide corresponding repair solutions.
If the diesel version of the Great Wall Pickup Fengjun 5 has unstable idle speed and vibration at idle, you can check whether the idle speed meter needle is unstable. This usually indicates poor ignition. new car, there will be no danger caused by idle components. The problem is that because the combustion requirements of turbo direct injection vehicles are very strict, it is best to clean the oil line first. The idle pointer was not stable before and the. The idle speed vibrated in the fuel tank. After adding theSiyoupu fuel additive to the fuel tank, it was completely hardened after running two tanks of oil.