It is difficult for Jiangling Baodian pickup truck to start cold in the morning (it can be played at other times). Please ask the mechanic for some advice.

Is it Jiangling Baodian diesel EFI pickup truck? This is the problem with my collection, which has been bothering me for three years. I finally solved the problem today, and I am very happy to share it with the riders who have the same problem.

This failure is a big problem caused by a small mistake in the design of Jiangling collection. In order to make the cold car start smoothly in low temperature and cold environment, diesel vehicles are specially equipped with a set of electric preheating plugs. If there is something wrong with this preheating system, the cold car won't start. The reason for this failure is the long-term friction between the harness and the car body caused by the shaking and pulling of the engine, which leads to the short circuit damage between the glow plug control relay and glow plug, resulting in the short circuit to the ground, which leads to the damage of the glow plug or glow plug control relay and the failure to start the cold car.

Note: (Even if the preheating system fails, the preheating indicator on the instrument panel will still light normally) Do not assume that the preheating system is not faulty just because the preheating indicator can light normally. In fact, there is something wrong with the preheating system. Only by troubleshooting the preheating system can the 30-degree train start smoothly below 0 degrees.

The specific location of the line damage is that there is a black box next to the fuse box on the right side of the engine compartment, which is a glow plug control relay. There is a wire on it, which connects glow plug. Pull this wire up, look at the bottom of the harness and find out the damage, especially the part where the harness contacts the body. Reconnect the damaged wires, and then check whether the four glow plug and glow plug control relays are burnt out due to short circuit. If it burns out, the fault can be eliminated after replacement. Note: Lift the reconnected wire harness and fix it in a proper position to avoid further wear.

The fuel nozzle and high-pressure oil pump of EFI diesel vehicles are generally not easy to be damaged, and the main difficulty in starting a cold car is the failure of the preheating system. In winter, especially in the northern region, whether diesel or gasoline vehicles, it is necessary to replace the special engine oil for winter and maintain the generator, battery, preheating system and starting motor. As long as these conditions are met, vehicles will be used well even in cold winter.