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Athletes need to warm up before the game, cars need to warm up before driving, people and cars have commonalities. According to the engine coolant temperature can be divided into two states, below 70 °C belong to cold cars, above 70 °C after the hot car. There are two common cold car breakdowns: cold car idle jitter and cold car acceleration, many drivers friends know what to do with these faults, the following one by one to make an analysis.
Cold crank shake
If cold idle jitter and hot vehicle idle jitter exist at the same time, first eliminate the hot vehicle idle jitter fault. Defining whether to belong to the jitter should observe whether the pointer of the engine tachometer swings or reads the engine speed in the data block, because the engine foot pad damage also causes the engine idle jitter, especially when the automatic vehicle is engaged in the forward gear.
The causes of cold idle vibration are:
1, the engine mechanical failure. For example, the pressure of each cylinder is not uniform;
2, the intake system failure, such as air intake pipe leakage. Excessive carbon deposition in the intake valve and intake pipe, too much dirt on the throttle and intake pipe inner wall, etc.;
3, engine management system failure. For example, water temperature, intake air temperature signal is incorrect, line faults, etc.;
4, there is a fault in the ignition system. For example, there are too many carbon deposits in the spark plugs or gaps, leakage of high-voltage lines, distributor caps, and damage to the ignition coils;
5, oil supply system failure. For example, the injection of oil due to excessive coal deposits inside the nozzle caused the nozzle is not closed or blocked.
Bad cold acceleration
Although many car manufacturers' user manuals indicate that the cold car can be started without preheating after start-up, I believe that it is beneficial to preheat the engine slightly after warming up for 3-5 minutes because it can reduce the mechanical wear of the engine and reduce the displacement of the engine. The car can make enough engine power at the start. The cold start and the start of the accelerator are the wrong driving methods. At this time, the acceleration car that appears will be avoided. If the cold car starts slowly, it will be a fault.
Reasons for poor acceleration of cold vehicles include:
1, the engine mechanical fault. For example, a low cylinder pressure results in a decrease in engine power, a more prominent condition in a cold vehicle, and an excessive amount of carbon in intake valves and intake pipes;
2, intake valve and intake pipe excessive carbon deposition. Causes the injected gasoline to be adsorbed by coke and cannot enter the combustion chamber;
3, engine management system failure. For example, water temperature, intake air temperature signal is incorrect, line faults, etc.;
4, there is a fault in the ignition system. For example, there are too many carbon deposits in the spark plugs or gaps, leakage of high-voltage lines, distributor caps, and damage to the ignition coils;
5, oil supply system failure. For example, the injection of oil due to excessive coal deposits inside the nozzle caused the nozzle is not closed or blocked.
1. The main material used is polyurethane.
2. Effective travel is 2300*1250*200mm(X*Y*Z)
3. Standard bench 2000*1000*900mm(L*W*H)
4. Use the HT600 hybrid head.
5. The width of the rubber strip after foaming is 8mm-30mm.
Advantages:
1. Temperature holding system( no need air conditioner room.)
2. Tapping water cleaning system( no need chemical cleaning liquid)
3. Patented Anti-blocking gluing nozzle.
April 25, 2024