buick oil light on temp gauge hot

• 2022-09-01

The reason why buick oil light on temp gauge hot on the instrument panel of the automobile is on: the oil viscosity is too high, the oil quantity is insufficient, and the oil bypass valve is faulty.

During the rapid driving of the vehicle, the engine and the air conditioning system will boil after the water temperature is too high due to poor heat dissipation. Now, we will give daily maintenance instructions for several frequently occurring engine overheats:

Situation 1: in case of traffic jam or idling for a long time, the engine water temperature gauge shows too high, the electronic fan operates for too long in high gear, the engine noise increases, and the fault is most obvious when the air conditioner is turned on when the temperature is too high.

Solution: check whether there is too much dust between the condenser and the water tank, and thoroughly clean it with high-pressure gas to ensure that the water tank and the condenser have good heat dissipation performance. Pay attention to wiping the dust between the condenser and the water tank.

Situation 2: when the air conditioner is turned on at too high temperature, the idle speed is unstable, the speed fluctuates too much, the acceleration is weak, and the engine makes abnormal noise.

Solution: check the temperature difference between the upper and lower water pipes of the water tank when the vehicle is hot. If the temperature difference is too large, it is necessary to check the opening of the thermostat and whether the water pump has the fault of rotating speed loss.

Situation 3: it is not easy to start the hot car after more than ten minutes of shutdown; Sometimes the engine shuts down automatically when the hot car is running.

Solution: after heating up, check the return water of the return pipe at the upper end of the antifreeze water storage tank. If the return water is not smooth or blocked, the water temperature will be too high.

Situation 4: when the hot car is idling, the clutch of the air conditioner compressor is frequently disconnected or even disconnected, causing the air conditioner of the hot car not to cool.

Solution: the high pressure at the high pressure end of the air conditioning system is too high; Too much air-conditioning refrigerant or air-conditioning refrigeration lubricating oil is filled; Internal self adjustment: the self adjustment function of the air conditioning compressor fails, resulting in high pressure; There is also the blockage of the air conditioning condenser. The above faults will increase the load of the engine, consume the cooling performance of the cooling system, and lead to the fault of high water temperature. Case 5: the space-time modulation cold temperature of the cold vehicle is very cold, the space-time modulation cold effect of the hot vehicle is not obvious, and there is a large resonance buzz in the air conditioning system.